OK - This is the real deal, and an announcement I have long been wanting to make. I also hope you have been eager to hear it!

In conjunction with GTP (Guru Tuner Phil), we will be developing a "bolt on" Supercharger Kit for the RX-8. I use the terms "us", "we" and "our" losely below. Some things are mine, some things are GTP's - I'm sure you know what I mean.

I know this will generate a lot of interest, and a lot of "pics please", "show us the dynos" etc. My pledge to you forum members is to povide regular updates with pictures and data as possible. All I can offer now is a picture of the dummy supercharger unit I fabricated to check for sizes etc with GTP inside the engine bay! I might even post that if you really like.

Through this forum, I shall keep you informed as much as possible of the progress. There of course might be some sensitive details that for commercial reasons I will not want to publish, and I hope people will be mature about that. I'm sure you will understand the sort of investment, both in money and time, a project like this requires.

Here is the current plan:

I am purchasing a Twin-Screw supercharger for the prototype. Such a positive displacement supercharger delivers near instantaneous boost, which will really help pull the RX-8 out of that low RPM hole you so often feel. I am not going to state the target boost level at this stage. That is what our own research and development is going to be for.
The supercharger is of a design that exhibits a very high adiabatic efficiency. Go look that up ;) Much higher than "roots" blowers, and approaching similar levels of efficiency as turbo's.
The supercharger is a commercially available unit that has undergone extensive R&D, and has proven reliability. It is of the highest quality design and manufacture I could find.
The compressed intake charge will be cooled by a state of the art design water/air intercooler. Mainly, this is to increase the margin of saftey against pinging/detonation which shatters apex seals. Like I said, the heat exchanger components are state of the art, and are even used in V8 Supercars (I saw one such application today at Phil's), although in that useage they are used to cool a different fluid.
Initially I wanted to do this without a cooler. But you cannot escape the laws of physics that say no matter how efficient any compressor is, when you compress a gas, it heats up. And Phil knows from practical experience that a rotary engine is much more sensitive to elevated intake temperatures than a piston engine. So the additional costs related to an intercooler are like a safety margin.
The standard engine management system will be retained, and controlled via a TSI or similar piggy back (in the 1st instance), or reprogrammed if/when that can be achieved(in the 2nd instance).
The 1st prototype will be run on a fully equipped engine dyno and many tests run. This testing will be performed using a fully programmable MOTEC engine managment system. This is so we can have full and absolute control over the testing and data logging process. This will allow us to have the relevant data to be able to "get close" with the required re-mapping of the piggyback ECU/PCM.
There is every possibility we will stess test one of our "spare" development to destruction. Unless we do that, we don't know how much the Renesis can take. We loose an engine, you gain from the knowledge we gain though our loss :)
The results of our extensive testing will ultimately determine our final "boost". The level of boost on a supercharger of this design is simply controlled by pulley diameter. A lower boost installation could be done with a change in pulley.
There is some chance this will require "indestructible" apex seals to be installed. In this case, the motor needs to be cracked. Time and effort will tell.
There is some chance a suplementary fuel pump / regulator will be required. Time will tell. Anyway - the stock one needs replacement at the 60k service at a cost of some $600 dollars anyway!
We have gained some valuable datalogging on the Renesis, and we are quietly confident that the standard injectors will be able to deliver the power levels we are aiming for. Again, time will tell.
A by-pass valve will be incorporated to improve "light-cruise" economy.
We still hope to fit the standard engine cover on.
With supercharging, the exhaust design is a lot free-er, so we will be able to make a nice set of headers as part of this project. "That is the easy part" to quote GTP.

I have no firm timeline for this development. I only made the final decision this evening after a highly technical and practical meeting with Phil.

When we get the protoype done, I hope it will go into a car I can drive. It will be called install #0. Install #1 is reserved for one of my faithful customers. Kit numbers after that will be reserved on the basis of deposits, I suppose. Let me not get ahead of myself, but at the same time, lets hope it gets that far.

I am really excited about this. Find someone who has committed on this public forum to so much. Find someone who is willing to do the expensive testing on an engine dyno. Find someone who is willing to blow up an engine to find the limits.

This will be a mod that will really kick some serious arse. I am not going to publish target HP or kW figures, but deep down, I believe this is only worth doing if we can get around 100 more useable HP out of it. And don't forget, with positive displacement superchargers, you get that boost across the whole RPM range :D

I hope that wets your collective appetites for now. Note, I have not released the brand names of the components yet. I will. They are the best of breed. I just ordered them :)

And most of you know I don't come into this place and make bold promises. A lot of research has gone into this, and it is not a fly-by night pipe dream. This is not a "I saw a...." or "some magazine said....". This is a case of "Hymee is doing this!". Like I said, I just ordered the parts :)

Let me know what you all reckon! Just remember where you read about it first.

Just to close, I would like to make two quotes from some of my readings...

With any positive-displacement, mechanically driven blower, the boost is available immediately, which is important for coming "out of the hole".

As I said at the beginning of this chapter ANY car can be supercharged. If yours seems difficult, just sit down and think. Once you have got it properly supercharged you'll realise that all other forms of 'hotting up' are only a shadow of the real thing

Cheers,
Hymee.

(PS - Eldred Norman's quote probably predates the popular use of Turbochargers. But he is a legend, and I liked that sentence. I don't like lag!)

Do the screws turn the opposite direction down there? :D

This is very exciting!! thanks!!

It is ABT (about bloody time) and someone creditable to make effort into it and locally!

Exciting. I can sleep now.. thinking there will be a better day.

Can I make a routine comment in this thread.... "I can't wait" :D

Great news...good luck on the project.

if ever you develop and market one, you'll make lots of $$$.

I don't believe the "if" is in doubt! But actions will speak louder than postings. :) Thanks for your encouragement.

Cheers,
Hymee.

Hymee

Guess i will be saving my pennies for this one , hmmm lets see .

NO big
expensive excecutive lunches/dinners for 6 months .

NO expensive joy rides using up lots of fuel .

Stop buying 6 car magazines monthly.

NO more trips to stripp clubs and bordellos :D , This one is the real sacrifice .hmmmm

cut down on drinks

STOP BUYING EXPENSIVE CLOTHES .

NO more speeding fines .

=== ready to get into a HYMEE / DR PHIL supercharged RX8 .

70 KW EXTRA POWER

Possible candidate for install 1 ??? .

Definetely interested .

cheers
michael

Lock,

#1 is reserved for someone else ;)

But after that...

First let us get the first one running!

Cheers,
Hymee.

Hymee

Do you /Dr. Phil know if you will need to strenghten the gearbox or the clutch just to be on the save side. ?

It appears to me that you are going for the higher end of the gain scale with your upgrades ???

cheers
michael

Lock,

Time will tell. I'm not sure about strengthening the clutch as opposed to replacing it. That is not a drama. Plenty of high quality clutches to choose from these days.

Of course we are going to the higher end to start with. How else would we know what can be done. That is all what our R&D will be about. If I only got 20kw for the expense and effort, I wouldn't even start trying.

Cheers,
Hymee.

Exciting news, mate. We wait with baited breath to see progress reports.

I've yet to do any mods to my 8, but have been following the progress of various projects very closely. There have been few times that I've actually felt the need to shellout the $$ for any mods.
But everytime I read threads about Hymee's products, I feel myself reaching for my wallet.

Good luck Hymee, my CC awaits with baited $$ for the your SC, Exhaust & grill kit. I'd like to do everything in one big hit and launch with a bang... well not literally I hope :p

i definately be interested in one
i been saving up for other things but i guess i have to blow it on the supercharge... lol

Hymee, now i have a bit of faith. I like a person that doesnt "think" about it working but "knows" its going to work. With that kind of attitude it puts great confidence in all us members that we are just waiting for the finish product and you have my order without a doubt.

Keep up the good work and remember
"when times get tough & they will, success is just around the corner"

we all hope for your success,
because we are all interested in more power.
once you start with this though, where does it
end....clutch,brakes,suspension...carbon fibre roof
it could be the rx8 sp model we were waiting for
to take on the bathurst 24hr!

though, do you think mazda will come out with a sp
supercharged model on their own soon?

I new I would leave out some little details I meant to mention...


The intake track will undergo intensive surgery...
We plan to start with the standard CIA, but after there there will be some serious plumbing.
The fly-by-wire throttle will be retained.
The upper moulded portion of the intake runners will go.
Depending on a number of factors, the aluminum cast runners might also go and be replaced with a new casting.
A number of bits (adaptors, runners, ducts, etc.) will be designed and new castings made. GTP already has his own designs (twin rotor + more), and gets special castings made for race applications, so this is not something new to us.


That should give you all a little bit more confidence!

Cheers,
Hymee.

will this unit be available to the a/t 8

Mazda will probably bring out their own supercharged RX8 in a few years but as you have seen with the MX5 THEY TURBO CHARGED IT very conservatively compared to the aftermarket Australian turboed one .

iF IT DOES GET HERE The price will probably be around $80,000 +on road , id rather spend between 5-10,000 dollars and do my own car up with a Australian supercharger , with the help of HYMEE AND DR, PHIL . :cool: :D

CHEERS
MICHAEL

Initially only for the 6-port. I think a smaller blower would be better on the A/T - it doesn't rev as much, therfore has less air requirements. I would also be worried about the durability of the transmission - but time will tell. There is also the issue with the 4-port v's 6 port intake track we are mating to. There are a number of physical differences.

But if there was enough demand, who knows!

Cheers,
Hymee.

The market awaits another proven product from the House of Hymee :) .

Excellent stuff...the quality will not be an issue, the product will be lovingly engineered, the service will be first rate, and the price will be spot-on.

Good work.

Regards, Gomez.

Edit: Note amended sig....

This whole thread is nonsense. No one would really quit going to bordellos just to gain 100HP!

Hey Hymee/Phil, good luck guys! I'm with a previous poster, if I'm gonna make changes, they're gonna be worthwhile major ones :) See you around!

Hymee,

Great news! I have the utmost faith that you and Phil will come through with the goods on this one. Now I wont be able to sleep for the rest of the night! I'm glad to see that you are going for some significant power gains. If you are going to take the risk and go to the trouble of doing this project, you might as well make it worthwhile! Good luck. Time to start saving!

Wildcard

Hymee

This is exciting stuff. I look forward to following your progress as you take on this project. I am sure there will be long nights and many weekends that will go into this development. A project like this requires balls and just by attempting to take this on you have demonstrated that you will be able to carry this through.

Good luck. I look forward to testing the real thing.

Regards

skc

This whole thread is nonsense. No one would really quit going to bordellos just to gain 100HP!

Hmmm i suppose you are right :rolleyes: but i will put a time limit of halve hour session :cool: instead of the one hour special , a substantial saving :p

cheers
michael

I think you should do a documentary on it... it will be so cool..

I have the "back yard blitz" theme in my mind :lol: :D

So how often do you plan on giving us updates here, mate? :D

Bring us your tired, your torque poor, yearning to breathe free...

We want FI =)

So how often do you plan on giving us updates here, mate? :D

Update as of 17th August 2004

I have ordered (and paid for) the compressor, and the modular parts for the intercooler.

Next step - wait for them to arrive.

Cheers,
Hymee

Cool. Keep us updated Hymee. :)

Hymee,
Glad to know you are not the type just to sit still.
100 HP ! That is some serious gains.

I'm here in the states to help in any way - just give the word.

Good luck Hymee, and keep us updated!!!!!!!!!!!!!!!!

Update as of Sunday 22nd August, 2004

The Compressor and the Intercooler components should arrive by Wednesday. They shipped from the US last Tuesday. You think for $300 shipping it might be a bit quiker than that!

I'll post some pics then. I will also reveal the brand of components I am using.

Preliminary 3D CAD drawings done for one of the castings.

Cheers,
Hymee.


Cheers,
Hymee

Hey man, this is great news. I was thinking about supercharcging rather than turbo b.c it's easier on a stock engine, and i was not looking to replace everything in the engine so it will hold. Either way I was going to see if acosta would go in with a supercharger, since they are already boosted from turbos, but seeing you have started already, Ill wait and see yours. Any idea of an estimated american price on the kit.... I was thinking around 3 grand. What do you think? Well anyway, good luck, and I will be watching this thread everyday. ::cheers:: Rob

Is it a KB supercharger?

Keep us posted on prices and ETA of completion.

Thanks,
Jamie

.... I was thinking around 3 grand. What do you think? No offense, but dream on man. It'll take a few years for any FI kit to drop to the price of what you can get a cheap Honda kit for. Sure would be nice, but ain't gonna happen for a while.

Hymee, you think like me! I really want to see an intercooled twin screw supercharger setup for the car more than any other type of forced induction.

Hymee

God being Rotary god has given his blessings to the intercooled twin screw supercharger , so you must be on the right track, we hope . :D

cheers
michael

If this helps AT pick up a lot faster I might be interested.

Forced induction would benefit the AT engines too. Look what forced induction could do for the much lower power 13B!

Update. Tuesday 24th August 2004

The compressor and intercooler parts have arrived in Australia. Bit of a hit with custom clearance, but I was expecting that. I should receive them tomorrow. I'll post pics and reveal the "brands".

Cheers,
Hymee.

sweet!

Go HYMEE Go!

Wow, I got my bits and peices today.

Here is an overall shot of the twin-screw blower, showing pulley end and discharge port:

http://www.hymee.com/rx8/images/dscn6337.jpg

Intake end, showing profile of male and female rotors. Note - It is not a "roots" style:

http://www.hymee.com/rx8/images/dscn6338.jpg

Top view of blower showing the discharge port and rotors:

http://www.hymee.com/rx8/images/dscn6340.jpg

Bypass valve assembly:

http://www.hymee.com/rx8/images/dscn6342.jpg

Close-up of heat-exchanger core for water-air intercooler. We will use multiple cores:

http://www.hymee.com/rx8/images/dscn6346.jpg

Now for some more details...

Compressor:
We are using an Autorotor Twin-Screw compressor. The main casing is machined from billet, not cast. These are often reffered to in the USA via the Kenne Bell brand. The same group of companies that make the Autorotor (Opcon) also make the "Lysholm" twin-screw blowers. These are a lower cost version of pretty much the same thing. The main case is machined from billet, not cast. For a nice technical comparison between KB Autorotor and Lysholm, have a look at this page:
http://www.kennebell.net/techinfo/ford-techinfo/AUTOROTORvsLYSHOLM.pdf

Now - what about "Whipple"?? The "Lysholm" brand units are sold in the US under the "Whipple" brand.

Mr Lysholm invented the twin screw principle many years ago. Autorotor makes their twin screw under licence.

Intercooler:
We are using the Laminova modular heat exhanger cores. The design of the cores is protected by world-wide patents. They are very high efficiency design, and can be made quite compact. There are some other billet extrusions we used around them, and then we will fabricate our own casing.

For more technical details, refer to this document:
http://www.opconab.com/download/laminova/docs/core.pdf

Autorotor and Laminova are both part of the OPCON group. I'm not advertising for them, I paid the asking price for the bits. I'm just trying to give some information and credibility to decision as to which parts I chose. I am not sponsored by them in any way.

Hope this is good info!

Cheers,
Hymee.

schweet

Hymee, how did you get those pictures to post like that???
I can't even get one at a time unless they are reduced.

Hymee uses the img link... read the code menu. It goes " url of the image " like this.

ok?

Hymee, nice photos... real professional pic - did you take it yourself? :)

Taka,

Photos are taken by Hymee, and hosted by Hymee. Just another indication of Hymee's Quest for Quality.

BTW - In the Olympic baseball game I saw AUS play JPN, I saw a Japanese batter named "TAKAHASHI" :)

Richard,

I always resize to 640 x 480 pixels. Then I upload them to a web-server and post the [img] tag/link. You need access to a web server to host files like I do.

Well, even if this project busts (which I don't think it will), it sure is a pretty setup.

I'll make a prediction which we'll look back on in a few months time: It won't go bust.

It's real! Now I'm excited. This could be the best Christmas present ever! Go Hymee (and Phil)! :D

Taka,
BTW - In the Olympic baseball game I saw AUS play JPN, I saw a Japanese batter named "TAKAHASI" :)


That Takahashi has been playing for LONG>>>>> Time. I knew of him since I was hooked on baseball during high school. He play for Giant and I was a keen Yomiuri Giant team then. Giant in the mid and late 90s are much like the Yankees.

I remember his first name is Yoshinobu or something - like Yoshi (Like the computer game from Nintendo ;)).

There should be a Takahashi as well pitching - he is a pitcher for Hiroshima, where our cars are from :D

oh they just got Bronze ... I mean the Jap Baseball team

Sweet! I knew it was a KB SC. Good luck with this project. A SC'd 8 will be fantastic.

Way to go Hymee!

Man things just keep getting better every day..........
Thanks for the info Hymee
Good luck with your project.

Mate, that is a seriously attractive bit of gear. And great photo's BTW.....

Gomez.

Hymee, how heavy is that compressor? It looks very solid. and the completed intercooler? Next time put something next to it so we can see how big it is.
Where does that bypass fit? What size are those rear bearings. They must be just greased as no oil inlet/outlet are visable.

Looks good, I'm keeping my eye on you. It's smart of you to use the Motec for first dyno development. How far do you think the stock nozzles will take you?

RAP

Supercharger Project Plan - Where to from here?

I am going to attempt to outline where this should all go from here (and where we have got to so far):

Phase 1 - Dreaming
Way too much dreaming was done, but I needed to have realistic intentions.
Complete? Well - perhaps I am always dreaming

Phase 2 - Inital Research
Do lots of reading, and talk to lots of people. Intermixed with a lot of dreaming as well!
Complete

Phase 3 - Decision Time: What Hardware?
Turbo? Centrifugal S/C? Roots/Eaton S/C? Axial Flow S/C? Twin-Screw S/C?
Which manufacturer?
What Intercooling technology?
(Note: I would dearly like to try an Axial Flow as well. But my budget restricts me to one for now)
Complete

Phase 4 - Procurement
There came a point where just talking and hypothesising about it only got us so far. It was time to just get the stuff and give it a go.
Complete

Phase 4 - Get it running
This is the phase we are currently entering. Initially we want to get the blower mounted somewhere, and plumbed into the engine. All done so it will work on the engine dyno without total regard for where it will ultimately fit. That is in the back of our mind, but initially we need to get something running! Once it is runnning, we can package it properly in a later phase.
Current phase

Phase 5 - Dyno Testing
Seeing how it performs, testing various combinations of "boost". Validating the efficiency of the cooler. Exploring the requirements / capabilities of the fuel system. Getting optimum tunes for the huge matrix of operating conditions. All done under full control of the Motec engine management system.
Future phase

Phase 6 - Packaging
Once we have all out data, and now what we can achieve, we need to fit it all in. We have variuos mounting brackets to design and fabricate. And the same to be said about a number of ducts, adaptors, castings, bushes etc. All so it fits in perfectly.
Future phase

Phase 7 - Restesting
When we get it all in, we need to re-test on the chasis dyno, and on the road. This phase will also entail calibration of the piggy back ECU with lessons learned on the engine dyno.
Future phase

Phase 8 - Enjoying "Instant Torque" :) and never look back!
Future phase

I hope this impresses the pants of you all. I hope you can see we are going to do it properly, and that a lot of time and effort needs to go into this.

Some more pics...

Donor engine that will be used on the Engine Dyno:
http://www.hymee.com/rx8/images/Dscn6348.jpg

Stuff on the bench, thinking about basic parts we need to make to get it running:
http://www.hymee.com/rx8/images/Dscn6350.jpg

Cheers,
Hymee.

Amen!

i got "dibs" on the "donor" motor when he's done!! nice pics hymee!

I hope this impresses the pants of you all. I hope you can see we are going to do it properly, and that a lot of time and effort needs to go into this...

Cheers,
Hymee.

Mission accomplished!

I forget, was the plan to destroy the donor motor learning the limits of the renesis? I thought I read that someplace.. might not have been Hymee though.

Top notch, Hymee. Keep it like that, can't miss. I wish I could help, man, this kind of stuff really gets me going! Best wishes!!!

I forget, was the plan to destroy the donor motor learning the limits of the renesis? I thought I read that someplace.. might not have been Hymee though.

I did pretty much say that in the first post on this topic, but I don't think I said anything to the contrary thus far. I don't think we will aim to do that on the first run. Perhaps it might never happen with the combo we try - who knows? There are so many variables. There is also various interpretations of "blowing an engine". I think the critical thing is if the apex seals can stand up. If we get to a point where they fail, I think that is probably be a good point to stop for starters.

Cheers,
Hymee.

let me first say....that I've been observing the site for the last three months, which is how long I've had by RX8 and it's the best site ever. The supercharger project has me really keen and I'm in for one as well....keep up the good work.

Hymee,
How long have you budgeted for time during this phase?

Certanly appreciate your dreaming, financial commitment, and progress reports. Being almost halfway through my warranty mileage, I will be checking your phases closely.

Onward ho mate !

let me first say....that I've been observing the site for the last three months, which is how long I've had by RX8 and it's the best site ever. The supercharger project has me really keen and I'm in for one as well....keep up the good work.

We saw you skulking back there! Welcome aboard :) .

...and since your first post was on one of Hymee's threads, I assume you know about his other products. Buy a Hymee grille kit and exhaust.....the quality and execution of his stuff is top notch, and the proceeds will help hasten the supercharger kit development :D .

Go"spruiker"mez ;) .

Hymee,
How long have you budgeted for time during this phase?

Certanly appreciate your dreaming, financial commitment, and progress reports. Being almost halfway through my warranty mileage, I will be checking your phases closely.

Onward ho mate !

We would like to have 1 or 2 installed by Christmas. Some SA will ask which year ;)

Cheers,
Hymee.

Awesome Hymee. Your plan of attacking the supercharger issue mirrors that of mine. I hope everything goes well. Twin-screw is the way to go. :)

What are you planning on doing with the intake manifold?

edit: I'm still in love with your exhaust. Hopefully I can buy it soon.

Phase 9 - Breaking the transmission

And then finding out what specifically is breaking for people, and then developing an alloy gearset or whatever. :) (Seriously, I've seen several companies attempting FI, but is anyone working on improvements for the transmission?)

Not to detract from your work so far of course--it's looking good.

Phase 9 - Breaking the transmission

And then finding out what specifically is breaking for people, and then developing an alloy gearset or whatever. :) (Seriously, I've seen several companies attempting FI, but is anyone working on improvements for the transmission?)

Not to detract from your work so far of course--it's looking good.

Sidestepping the clutch at 7000rpm will have that effect! Apart from some strange clutch plate failures I've seen reported, most off the gearbox/diff probs relate back to severe abuse, don't they? These cars aren't Hemi equipped with Dana rearends....why do people treat them as such?

Hymee i think you have a bit of a fan club here.

Now i understand why you moved the thread.

Looking very impressive, as there will not be many aftermarket supercharger suppliers.

Hymee i think you have a bit of a fan club here.

Now i understand why you moved the thread.

Looking very impressive, as there will not be many aftermarket supercharger suppliers.


Hehehe - I didn't move it. A "higher order" fan wanted to shift it for me ;)

Thanks for you support.

Cheers,
Hymee.

Sidestepping the clutch at 7000rpm will have that effect! Apart from some strange clutch plate failures I've seen reported, most off the gearbox/diff probs relate back to severe abuse, don't they? These cars aren't Hemi equipped with Dana rearends....why do people treat them as such?

If you're happy with stock performance, that's fine. If you're running a screwcharger though, you're going to almost certainly putting more stress on the transmission, and beefing up the transmission would probably be a smart thing to do.

I'm sure will find out about this when the time comes. But we might keep that for another technical thread please, and leave this one on the topic of this supercharger project.

I'm also sure those willing to do this mod will contemplate these downstream concerns.

Cheers,
Hymee.

Good point... (http://www.rx8club.com/showthread.php?t=36065&highlight=durability)

Gomez.

Hymee...........christmas of which year??? :p :eek: :p :eek:

Seriously, haven't been on rx8club recently because of a lack of time and I stumbled on this thread. Well done with the foresight to take on this project.

Though it is still early days have u considered what kind of warranty will be provided?

Hymee...........christmas of which year??? :p :eek: :p :eek:

Seriously, haven't been on rx8club recently because of a lack of time and I stumbled on this thread. Well done with the foresight to take on this project.

Though it is still early days have u considered what kind of warranty will be provided?

Honest answer: Yes I have. :)

Cheers,
Hymee.

care to elaborate?

The Opcon Autorotor blower has a 12 month or 60,000 km manufacturers warranty, if that is any help. Other than that, I am thinking about that issue. I don't intend on putting something to the market with my name behind it if it is rubbish. Obviously, I can't warrant anything I haven't supplied. Lovely stuff to think about!

Cheers,
Hymee.

PS - Nice avatar change! ;)

Fantastic work Hymee, I'll be eagerly awaiting updates, and the completed project. Count on me for an order! :)

Hymee,

As you already know, your plan is a good one. I thought, based on our earlier conversations, that you might be using the parts we had talked about. I think this will be a very successful project and look forward to following your progress. Good luck with your efforts.

so will there be an AUTO application or just made for MT?

It should work for the AT but you may have to get higher performance auto transmission parts (torque converter).

What do you think the stall speed should be changed to to support, at the most, 400 rwhp?

Hymee, what do you think about porting the engine along with the supercharger?

Hymee, what do you think about porting the engine along with the supercharger?

Since this is a "bolt on" I have not considered porting. And if I did, it would be pure speculation until some extensive experimentation was performed.

Cheers,
Hymee.

I wonder what the new rpm barrier will be. Still limited by the coils?
Ref: my talk with CZ about this. (http://www.rx8club.com/showpost.php?p=241697&postcount=97)

I'm not sure if I understand the question. I have not proposed to alter the rev-limiter.

Cheers,
Hymee.

Ok, let me expound a little.
CZ suggested that perhaps the power drops off at high rpms due to the stock air flow limitations. Wouldn't a supercharger blow that limitation out of the water? Still there is the limitation of the coils being able to keep up. CZ also suggested that as a limitation. Then, there are others such as the eccentric shaft bearing support. But with higher rpm capability, wouldn't that completely take the engine to a new level? A highly modified engine could maybe get to 11,000 rpm. Now, I am not suggesting that a stock setup would go to 11,000 rpm redline with your setup, but couldn't it be the answer to its ability to breath up there? And perhaps a stock setup might could get to say 9,500 rpm without complications?

Yes - a supercharger should "blow that limitation out of the water" to a certain extent.

I am not suggesting we go any faster than the coils are already designed to run at.

I know race prepped RE's go at 11,500 quite regularly. And the modifications are not so much in the rotors or the bearings or the housings. It is in the porting/breathing, better seals etc. Initially I'm not trying to go there with this mod.

Perhaps the limitation on RPM (other than the PCM's RPM limiter), is the timing of the ports, hampering the breathing? In a FI application the postitive pressure will punch more in that what can get in under atmospheric. I have never seen a MAP graph showing if there is much of a restriction at high RPM. I do know with the MAF logging I have done, the air floww does start to ease up in the last 500-1000 RPM, and hence the ease off in power. (The power actually stays pretty flat right up top, from the dynos we have done). That is fairly typical of any engine really. Yes - it is all related to the intake restrictions and port timing.

Cheers,
Hymee.

Air is Free. Boost is your Friend

Ok, let me expound a little.
CZ suggested that perhaps the power drops off at high rpms due to the stock air flow limitations. Wouldn't a supercharger blow that limitation out of the water? Still there is the limitation of the coils being able to keep up. CZ also suggested that as a limitation. Then, there are others such as the eccentric shaft bearing support. But with higher rpm capability, wouldn't that completely take the engine to a new level? A highly modified engine could maybe get to 11,000 rpm. Now, I am not suggesting that a stock setup would go to 11,000 rpm redline with your setup, but couldn't it be the answer to its ability to breath up there? And perhaps a stock setup might could get to say 9,500 rpm without complications?

Others say that the stock engine starts to have harmonic imbalances at around 14K RPM. If that is true, 11K wouldn't be a problem in stock form.

Ah! Yeah, it's that "punch" that I was getting at - good word for it.

Port timing. The time it takes for the flame to propagate / the burn to complete acceptably before the exhaust port is exposed. Can that be a major limitation with the side porting?

In any event, one step at a time. First, the supercharger, then, the 4mm apex seals, the modded porting, the center bearing... right?

oh, hey there robertdot, didn't see you there. Yeah, that's good news! Is that while actually combusting? Not, right? I'm thinking gurumotorsports eccentric shaft for a Renesis.

Power should always drop off a little before fuel cutoff. You want your peak horsepower to be within about 1000 rpm or so of what is considered the max usable rpm. This is based on tuning length of the intake manifold and overall flow limitations of the ports. Port timing also plays a role to a point. The reason you want power to be going back down at this point is so you get the maximum average amount of usable power that you can for the entire rpm range. You do not want to shift when your power is at it's max point.

It never seems to amaze me why people always want higher rpms. The faster then engine spins, the less reliable it is. This even applies to purpose built race engines. The older rotaries rev nice to 8000-8500 rpm and people want more. The Renesis can damn near hit 10,000 and people want more. This is entirely ignoring the fact that you are risking your very safety in the event that the flywheel explodes and sends shrapnel through the floor board. You'd at the very least need a scatter shield. The intake manifold can't flow enough air to supply a faster turning engine and make power. The port timing isn't optimized for this powerband. Your gearing isn't setup for this powerband. Your ignition coils can't handle it. They can barely handle what you got. Fuel consumption goes way down. If you get a power gain up top, you have to lose down low meaning your gas mileage will drop. The engine runs much hotter. It is much harder on the oil, etc, etc, etc... When are higher rpm's finally going to be enough. Yes it would be cool but time to come back to Earth and face reality. These aren't pure bred race cars with limited lifespans and millions in financial backing to fix them. These are street cars that have to do other things well and with a degree of reliability.

The stock powerband is great. Try finding ways to improve it before you try to get to a whole other rpm level. If you haven't maxed out the potential of a lower powerband (not one has!), you shouldn't be touching a higher powerband. This is learning how to run before you learn how to crawl and it doesn't work.

oh, hey there robertdot, didn't see you there. Yeah, that's good news! Is that while actually combusting? Not, right? I'm thinking gurumotorsports eccentric shaft for a Renesis.

I assume while combusting... otherwise, what is the point.

In the mean time, I always appreciate hearing rotarygod's insight, which seems like the absolute truth at this time. We need to get it right where we are, then talk about moving above our current threshold.

Rotarygod, perhaps I should have started all this with "Don't try this at home!" Hehe. It's eventually where the Renesis might eventually go in the racing world. I'm not refering to a backyard weekend bolt-on do-it-yourself kit install project, where I can throw it in there & go terrorize all the ricers in downtown Columbia. Would be nice though :)
As usual, you are right on with everything you have said and I (we) appreciate your input immensely! Long road still ahead, huh?
Robertdot, just spinning a body into its resonant frequency (or multiple thereof) will setup harmonic vibration. Eventually, its amplitude of vibration will cause it, or the system that it's in, to crap-out. I thought maybe that's what that test was about. With all of the factors we've been mentioning, wouldn't it be quite difficult/impossible to run the actual functioning motor to 14krpm?

With all of the factors we've been mentioning, wouldn't it be quite difficult/impossible to run the actual functioning motor to 14krpm?

Mayhap. But, I'm pretty sure Mazda did a lot of real R&D. If the rumors I hear are true, it seems like it would be really running. Obviously 9,500 was the top of the reasonable speed to run it at, but I don't doubt Mazda blew up a few engines finding that out.

But, the rumors could be false, and I wasn't there.

I don't understand why you would want a street motor to run as high as 14,000 rpm. Like rotarygod said, the stock powerband is fine. In short, an engine with a higher rev tendency will have a lower thermal efficiency. You can apply the energy balance for rotating systems, and it will be clear the heat-energy part will much higher than the power produced. The point is to have a reasonable rpm range, especially for the street. In most cases, you're not going to see anything higher than 3500 rpm, or at least me. :o

If you want solid, street-able power, my suggestion is to increase the displacement. You'll get more torque on the low end, more power, but the trade-off is the limit of the maximum angular velocity; it will be lower than that of a smaller engine. Simple physics, right? :)

So if I understand this right, Hymee's S/C will not change the RPM ranges that the engine will run at. It will severely bump up both the HP and Torque at those same levels, right? Have I lost me, yet?

Hymee said about 13 hours ago "Initially I'm not trying to go there with this mod." I caught the key word "Initially". Wisely, he's focusing on the 0-9000 range. The land beyond 9000 has got to remain, for now, in the world of the future, but still it exists, and you have to wonder. I have yet to witness an F-1 team trade-in their engines for Harley's. They're all in that land and they're not looking back.

Hymee, sorry if all this has trashed-up your thread. Carry-on, you're doin' it man!!!!

Hymee's project is right on the money. Leave the stock powerband alone but increase the power within it. The twin screw supercharger is efficient at low rpms and high rpm's. Roots blowers aren't as good up high and centrifugal superchargers aren't good down low. I don't understand why centrifugal superchargers are even used in the automotive performance world. Hymee has probably the best and most realistic power upgrade for the real everyday, emissions passing, street driven crowd.

Is there anyone else other than Hymee working on a twin screw supercharger for the rx8 that you guys are aware off ??, if not why NOT????.

As rotarygod stated........ "Hymee has probably the best and most realistic power upgrade for the real everyday , emmission passing , street driven crowd ".

So why hasnt anybody else approached the rx8 power upgrade with the same method being the twin screw type supercharger ???

Even from my limited knowlegde of rotaries it seemed obvious that the twin screw type supercharger was imho one of the most suitable method for getting extra power into the rx8.


Are others tuners engineers looking for the easier option of turbocharging, nitrious etc .???

CHEERS
MICHAEL

You need to realize that the rotary community as a whole is pretty close minded when it comes to supercharging. The big rotary tuners will always tell you to use turbos and that is all they know how to do. They'll tell you how a supercharger robs power off of the engine yet they'll use small turbo exhaust wheels and terrible exhaust manifolds that choke more power away from the engine than a good supercharger will. The twin screw supercharger is a wonderful platform. The new infusion of rotary interest with the RX-8 will start to see different approaches to rotary building. Alot of the rotary crowd still insists that the Renesis is weak even though it produces far and away more power and revs higher than previous rotaries. This is kind of like the LT1 crowd insulting the LS1. Something seems backwards about that. Personally I am not going to be surprised when (not if!!!) Hymee hits 400 rwhp with this setup. He'll do it with a super wide powerband and the same low emissions too. I only wish I were down under to see it.

Thanks guys for getting my thread back on track.
http://www.hymee.com/smilies/sm_pray.gif
I guess I used the word "initially" in case one day I do increase the RPM, and someone says "but you said....". My current project does not plan on increasing the RPM.

Thanks also for the confidence in my work, and choice of technology.

If I increase torque at one RPM, then I increase HP at the same RPM. The two are inseperable. It is just a weird phenonemom, Huhsler, that people relate low down power with torque, and high-speed torque with power :) If an engine makes constant torque, then the power will be a linear slope line, as the RPM is then the only variable.

The use of a positive displacement supercharger is increase the airflow ( = torque) by a roughly constant amount over a wide RPM band. If you increase torque by "x"% at every RPM point, you increase power by the exact same amount (%) at each RPM.

It is essentially increasing the displacement of the engine, which is what super/turbo charging is anyway. With the use of the bypass valve, it is very similar to having displacement on demand :) :cool:http://www.hymee.com/smilies/sm_dance.gifhttp://www.hymee.com/smilies/sm_burnout.gif

http://www.hymee.com/smilies/sm_teach.gif

Cheers,
Hymee.

As an afficianado of all things forced, whether engines or food, I am always willing to prove everyone else wrong. I don't find anything wrong with twin-screw compressors either. The power-robbing concept is widely exaggerated. :rolleyes:

Keep up the good work Hymee. :)

BTW, what's with all the smilies? :D

You need to realize that the rotary community as a whole is pretty close minded when it comes to supercharging. The big rotary tuners will always tell you to use turbos and that is all they know how to do. They'll tell you how a supercharger robs power off of the engine yet they'll use small turbo exhaust wheels and terrible exhaust manifolds that choke more power away from the engine than a good supercharger will. The twin screw supercharger is a wonderful platform. The new infusion of rotary interest with the RX-8 will start to see different approaches to rotary building. Alot of the rotary crowd still insists that the Renesis is weak even though it produces far and away more power and revs higher than previous rotaries. This is kind of like the LT1 crowd insulting the LS1. Something seems backwards about that. Personally I am not going to be surprised when (not if!!!) Hymee hits 400 rwhp with this setup. He'll do it with a super wide powerband and the same low emissions too. I only wish I were down under to see it.

Mate,

It excites me to read a post like that, and to see people understand my motives. I know a turbo is smaller, lighter and can make more peak HP. I'll never agrue that, and I aknowledge they are perhaps the best for the racetrack, in a narrow RPM band. But I want instant boost http://www.hymee.com/smilies/sm_nyuknyuk.gif

BTW - My last car was LS1 powered. And they love a good screw as well!

You will be able to see it - with the wonders of modern digital video and the expanse of "cyserspace" you will all be able to see it first hand. And with the wonders of international shipping, you can experience it first hand!

As a "teaser" here is a nice little video of the boost gauge of an LS1 with a twin-screw :)

http://www.hymee.com/rx8/videos/twin_screw_ls1.avi (non-streaming, so right-click "save-as")

Watch the boost gauge go from great manifold vacuum at idle/closed throttle, almost straight to about 10 PSI when it is the throttle is cracked open.

Cheers,
Hymee.

BTW, what's with all the smilies? :D

I used 4 of my favourites in that post, and save one of my other favs to my next post (above)... just for you ;)

Cheers,
Hymee.

Rotarygod

" I only wish i were down under to see it ."

As i believe there will be tremendous interest from fellow American rx8 owners as to the Australian HYMEE twin screw supercharger (whatever the cost will be you guys will get a substaintial saving due to the exchange rate )

Possible the forum members would be interested in paying/ subsidising a trip Downunder for someone such as Rotarygod to view the work first hand (when its completed ) and be able to act as an ambassador /agent for hymees supercharger in America .?????

With the number of members online the cost would be minimal if shared between us .

cheers
michael

Rotarygod

" I only wish i were down under to see it ."

As i believe there will be tremendous interest from fellow American rx8 owners as to the Australian HYMEE twin screw supercharger (whatever the cost will be you guys will get a substaintial saving due to the exchange rate )

Possible the forum members would be interested in paying/ subsidising a trip Downunder for someone such as Rotarygod to view the work first hand (when its completed ) and be able to act as an ambassador /agent for hymees supercharger in America .?????

With the number of members online the cost would be minimal if shared between us .

cheers
michael

i humbly submit myself as a volunteer for this. the finances needing to be collected would be much easier to meet for sending me since i am already a great deal closer than RG. also since i know next to half of nothing that RG knows about these things i will be much easier to impress:) i wouldn't mind tho bringing the wife along and perhaps there would be time for a side trip to bussleton to see the jetty there and then maybe a trip to the forest near there. i am very fond of the jarrah wood. what time of the year is best? :D

No, no, no. It is I who, if I were to be there in person, would volunteer my services in taking Hymee to higher heights. To see if there really is life past 9000. :D Just gimme that throttle cable. I will show you how it's done. ;) (Where's that friggin' rev limiter anyway?)

Hey! I sense Omicron lurking...

I just read through this thread today ( I have been gone ) and WOW!!!!

May the god of the wankel rotary engine be with you

Hymee we all love you!!!!

If I travel in the tourism off season, I can get there standby for $75 round trip! My sister works for Continental and my Dad worked for Delta. Flying isn't the problem. Time is.

Hymee, if you can hire me for the summer (intern :o), I would totally go.

Rotarygod

...

As i believe there will be tremendous interest from fellow American rx8 owners as to the Australian HYMEE twin screw supercharger (whatever the cost will be you guys will get a substaintial saving due to the exchange rate )

...


michael

And from European owners too! We're closely following this thread.

I'm in Malaysia.. not too far from australia ehh?
My only concern's about this setup is maintainance and reliability issues. Can someone enlighten me on this.

Hymee, have you figured out how to mount the supercharger? I'm having a hard time visualizing what it would look like.

> BTW - My last car was LS1 powered. And they love a good screw as well!

Not to hijack the thread, but that sounds like the makings of a new tagline for the Hymee supercharged system...

"Everyone loves a good screw" .... Hymee Enhanced

"Guaranteed twin screw with your purchase" ... Hymee Enhanced

I'm sure you could find a ton more like that.

Good luck with the system. I'm hoping for the best. :)

Hymee, That is a very interesting boost gauge. It acts like you have a screwdriver in the back turning the needle. In fact the oil gauge is also of interest. It acts like the engine is off.

One of them is broken Hymee, which one is it?? Or is it just the vac/press gauge hooked to some sort of hand pump?
Want me to guess??

Richard

Richard, the oil gauge does look like it is not connected. I must admit I never looked at that. The engine oil pressure was not on my radar of interest.

Interesting comment about the hand pump... I guess a hand pump is indeed a positive displacement pump! That pressure gauge shows exactly the sort of boost characteristics that the twin screw is intended for. And only a PD S/C can deliver that immediate boost.

So yes - the pressure (boost) gauge is hooked up directly to a positive displacement pump :) and it is driven directly of the crank.

Cheers,
"I dont want no lag!" Hymee

Not to hijack the thread, but that sounds like the makings of a new tagline for the Hymee supercharged system...


One of the LS1 guy's tag was (is) "I love to be stroked and blown" :)

Cheers,
Hymee.

Hymee, I don't want this to become a streaming thread, but.
But it doesnt work that way. Now if you tell me that you personaly took that video on a car that was running then I will let it go at that.
However, if that is not your video then you better check your sorce.
It just doesn't work that way, you can't get boost in the garage, not in gear. You can't open the throtle till the point of boost before the engine goes to the moon.

There has to be a load first. If your cruising down the road there is vacuume, no matter how big the blower is. Same at idle. Because the load is the same, the engine requirments are the same. There will be the same manifold pressure blown or not. So if the engine is not conected to anything you cannot get any boost because there is no requirment.

Plus, you do not get a gauge to peg like it is hitting a pin. It has a soft effect.
I mean not to dis you Hymee, I just don't think you really made that tape. Prove me wrong and I'll buy lunch. with brew.


BTW my e mail is not back up

I mean not to dis you Hymee, I just don't think you really made that tape. Prove me wrong and I'll buy lunch. with brew.


Clash of the Titans!!! Woot! We've got front-row seats. ;)

Hey, if this lunch with brew ever happens, let me know. I'd like to sit in. I'll even buy a round (as long as it happens in the US... if it happens in .au, I'll need advanced notice! I think Hymee said he gets to the US every-so-often, though).

Richard,

It is cool. No steam coming from my ears. I never said that video was mine! If that is the way it came across, I'm sorry; but I'm sure I didn't try to make it look like mine!!! The video is of a 5.7L LS1 - just like your GTO :)

I can understand how a positive displacement blower generates instant boost. It is basically because it is a "bigger" air pump than the motor. (I'll say 1.5 times bigger for the simple example below). At idle, the throttle is holding it all back - yes - there is vacuum as shown on the gauge. When you crack the throttle, the blower draws in all it's "displacement" and forces it into the intake manifold. The engine displaces less, so there is pressure staight away.

It doesn't need to be revving high - it pumps an mass of air pretty much in proportion to the RPM - just the same as the engine. As you know, boost is a pressure ratio, not an absolute volume of air flow. Therefore, at low RPM (lets say 1000 RPM) the engine is capable of taking "x" air, and the blower is pumping say for example, "1.5x". The pressure ratio is then 1.5, or ~7 PSI

Then lets go up to 6000 RPM. Our positive displacement engine is capable of taking "6x" air. Our pump, being linear in its mass flow, like the twin screw is, is then pumping 6 * 1.5x = "9x" of air. So what is the pressure ratio? 9/6 = 1.5. Still 1.5, so the boost is still ~7PSI in that example.

If we go up to 9000 RPM we get "9x" air required by the engine, and "9 * 1.5x" air pumped by the blower = 13.5x. The ratio then is 13.5/9 = 1.5 still. Still ~7PSI.

That is how PD blowers work, in theory. In practice, it is a little different, but the general principle is the same.

I can't comment of the reactivity / sensitivity of that gauge needle.

I thought you were getting the lunch on the 12th anyway? ;) As long as I make my next flight :eek:

Cheers,
Hymee.

9x1.5 is 13.5 .... :rolleyes:

Oopsies - sorry. Fixed. End result is the same :) Thanks!

Nice try, but you are still gonna wind up buying. Because somehow I'm going to get through to you.

The best way I can prove it is for you to go get that car and try it.
Let's say you started at 1000 rpm and zinged it to 3500. All with 10psi along the way. So at 3500 rpm with wot and full boost what is the power? let's say 275 hp. Now what is that power going to do except overcome the internal drag. What does it do with the excess power? After it gets to the crank it just continues to increase the speed. So in order to counter act that power the engine goes to whatever rpm it self disructs at.

You can't put full mass into an uncoupled engine. By the time manifold pressure went into boost you would have oil on the floor. Here again I know what I mean but if I were good at explaining it I would be on campus somewhere.

Think about it though. Go out and try it with an NA engine see if you can get to zero man. before you hit the rev limiter.

I have had guys do this to me lots of times. They buy a SC from me and as soon as they get it on they start it up and rev it up in the garage. Then they call and say they get no boost. I tell them to try it on the road and I never hear from them again.

What would happen if you were to try that with your P 51 Mustang. Is the Merlin going to show you man press with no prop load?? Think not.

What would happen if you were at full war emegency boost and backed the prop off? Well, it wouldn't let you do that but just think it would.


As far as making your flight, that depends on how many brews you have. Anyway we can battle this out then.

Hymee, the exchange rate is not that hot at the moment...I'll spot ya fifty for the first round of that watery beer they call Bud !

I liked your line about being on campus somewhere. I understand what you are saying. It really needs to under load, like on a dyno to see the real boost story.

Like I said, the video was just a bit of a teaser. It was not meant to portray a dyno run or anything like that. Just a bit of fun to get you revved up :)

I'll do some logging for real when we get it all together on the engine dyno :) Then we can stop playing hypotheticals.

Cheers,
Hymee.

PS - I'll probably not be in the best of moods after sitting on a plane for 12 hours :( !!

Hymee, the exchange rate is not that hot at the moment...I'll spot ya fifty for the first round of that watery beer they call Bud !

I'm glad I can read all this is still have a chuckle, and not get all hot under the collar! :)

It give me a great deal of pleasure to announce that Omicron will be having one of these kits fitted in the US for his enjoyment, once we get our components sorted, and something up and running here.

I also have another keen US forum member lined up, but he wishes to remain anonymous at this stage. So things are looking positive.

Thanks Omicron!! I'm sure you can't wait for instant boost :)

Progress... Happening slowly. To keep you fed, here are some CAD solid models I have been working on. Not finished yet, but these are some bits related to the water jackets for the air-water intercooler, or after-cooler if you prefer. The aim here is to be able to get these parts CNC milled.

Cheers,
Hymee.

Looks like I will be making a trip to Colorado once he gets it...

Congrats, Omi.

Hymee, PM me if you want a qoute for that... ;)

It give me a great deal of pleasure to announce that Omicron will be having one of these kits fitted in the US for his enjoyment, once we get our components sorted, and something up and running here.

I also have another keen US forum member lined up, but he wishes to remain anonymous at this stage. So things are looking positive.

Thanks Omicron!! I'm sure you can't wait for instant boost :)

Progress... Happening slowly. To keep you fed, here are some CAD solid models I have been working on. Not finished yet, but these are some bits related to the water jackets for the air-water intercooler, or after-cooler if you prefer. The aim here is to be able to get these parts CNC milled.

Cheers,
Hymee.

Hi Hymee

And I'd be happy to test and adapt (if needed) your kit for Std Power and EU RX8!

I guess you'll be using a separate water cooling system for the charge intercooler. Will you use an electric water pump?

Rasputin,

The std power will be interesting !!! I need some justification for it though... Lets just get the 6 port done!!!

Yes - separate water cooling system for the charge intercooler, and a 12V electric pump.

I can post some photo's of the pump perhaps over the weekend.

Cheers,
Hymee.

ok so you're sending one out to omi(BA#%RD!! hate that guy;)) but how about my trip to aussie is that still on?:) the twelve hour flight isnt to bad its the wait at the airports that bugs me:)

ok so you're sending one out to omi(BA#%RD!! hate that guy;)) but how about my trip to aussie is that still on?:) the twelve hour flight isnt to bad its the wait at the airports that bugs me:)

you said it..... haha :) Rrrrrr

sf :eek: WOOT I live in CO, I guess I will have to intro myself to Omi and try to talk him into giving me a ride after this install :D

Looks like that guage was actually getting an rpm voltage reading. Very odd. But i don't know squat about these suckers, so I'm most definitely FOS.

Looks like I will be making a trip to Colorado once he gets it...

Congrats, Omi.Thanks. :D

You may not have to come to Colorado... although that'd be cool... as I'm really going to try to make it to Seven Stock next year.

ok so you're sending one out to omi(BA#%RD!! hate that guy;)) Ok, Mr Junior Member. :D

Just kiddin Charlie. ;)

sf :eek: WOOT I live in CO, I guess I will have to intro myself to Omi and try to talk him into giving me a ride after this install :DWe can do that. Although the way things are lookin, if I charge admission I can pay off my car. :D

Thanks. :D

You may not have to come to Colorado... although that'd be cool... as I'm really going to try to make it to Seven Stock next year.

I hope to be in Breckenridge in March at my family's condo for Spring Break. That gives a 6.5 month buffer. It'd be worth a day trip to me if they'll let me take the rental van out (and maybe worth it anyway to check out your ride). If it takes longer than 6 months to develop (I think everyone hopes it won't), I'll catch you at SevenStock with it (or whatever they will be calling it then).

It's all on Hymee ;)

I'm so glad Hymee lives in the same city as I do cause as soon as his done I wanna test drive and place an order.

I'm so glad Hymee lives in the same city as I do cause as soon as his done I wanna test drive and place an order.


Cool! Your on!

I hope to be in Breckenridge in March ......

It's all on Hymee ;)

Actually, if you change that to "Bracken Ridge", I'll even drive the car personally for you to inspect :). Oh - It is only a <10 min drive from here :)

Cheers,
Hymee.

Actually, if you change that to "Bracken Ridge", I'll even drive the car personally for you to inspect :). Oh - It is only a <10 min drive from here :)

Cheers,
Hymee.

I'll PM you if I ever get to this Bracken Ridge you speak of... or if I ever get back down under (hope to God I do).

In the mean time, Breckenridge is a ski town in Colorado that was founded during the gold mining era. It also happens to be where they shot part of Dumb and Dumber, and where the troop in Cannibal, The Musical (from creators of Southpark) were headed.

Hymee

No updates , whats happening with the twins you are screwing (superchargers ) :D

cheers
michael

Hymee is still in the US earning his keep with his boss. I'm sure he'll get back at you once he returns down under.

I thought hymee was his OWN boss? Who owns you hymee?

:P

Hymee is his own boss for all things RX-8.

Hymee has a real boss in terms of my profession. Hence anything I do/sell for the RX-8 community is not clouded by a greedy desire for profits. But it does give me a good feeling to be able to get something of quality and undisputed benefit to other like minded car enthusiasts. I didn't by my RX-8 as a means to enter a market segment for performance products. Things have just fallen into place that way, and I have managed to team up with some very experienced individuals in a mutually beneficial way.

BTW - Birmingham AL, is not that far from where I am right now :)

Cheers,
Hymee.

If I were still there, I would drive up and visit. Huntsville's only about 2 hrs. I went to university at UAH for a year.

But as it is, it's about a 30 hr drive from where I am now... :(

...
BTW - Birmingham AL, is not that far from where I am right now :)

Cheers,
Hymee.Funny... same here :)

Hang in there all....Hymee is currently heading back to his homeland, and will soon return his attention to this project.

I was able to spend a few hours yesterday with Hymee here in Alabama, and let's just say the process of bringing his supercharger to market is carefully being executed through a series of very calculated steps.

He has hooked himself up with some very knowledgable & experienced people. Rest assured, when this hits the market, it will perform as advertised.

I am really pleased to see Hymee using the Autorotor :) That style of supercharger just makes the most sense to me.
The question I have is: is the entire Variable Length plenum getting yanked? all the effects of different length runners and ports opening and closing going away? Its hard for me to believe that the supercharger will nullify all the positive effects the longer runners and tuning valves give...
if they aren't thought to be used, what will the computer think when the electronics aren't there to change thigns? Is there anyway to make use of those RPM-specific signals?

Just a sort update...

Prior to our time on the engine dyno cell, we have to get certain parts designed and manufactured. This is what is happening right now. This includes things like pulley shafts being turned up, fabrication of brackets, CNC parts related to the intercooler and a whole host of other bits.

We are planning on taking 2 6-port Renesis engines with us. One will probably have some internals "improved", and the other will probably remain stock. I can't wait until we get something running on the dyno!

As for the question on the intake runners. At this stage the alloy part of the runners will stay - this is the bit where all the 2/4/6 port valving takes place. The plastic manifold that sits on top will go. It doesn't do anthing related to valving, but it does determine the length of the runners to some extent. If the question is indeed about the airbox and the VFAD - there will necessarily be some changes between the air box and the MAF / TB / blower. What exactly it will end up looking like will happen when we do our packaging after the engine dyno tests.

Thanks all for your patience.

Cheers,
Hymee.

awesome hymee keep it up!

also i want first dibs on your computer system youre working on!

How far along is this project percentage wise?

Is this something that you will be offering to the public world wide (since your in Aus.) or is this more of a side project for now.... ??

1. Somewhat less than 100% ;)

2. Yes - that is what I hope to do.

Cheers,
Hymee.

It seems like there will be quite a few systems on the market at the same time...

Pettit - December
Blitz - December
SSR - Who knows :)

I think i'll wait and see what you produce as well.... Omicrom seems to be behind you as well as many other well respected board members.

Hymee........Your Amazing

One will probably have some internals "improved",
Cheers,
Hymee.

Are you planning on porting and polishing the intake?? ;)

cool, so the 2/4/6 port thing will still be "in place". If the stock airbox has to be replaced, so be it :)

and I have come to enjoy the company of Australians. Our company is based out of Milwaukee and Sydney.... so I get to deal with the "criminals" all the time :)

Hopefully when I am down under in december, i will be able to take trip to brisbane, swim the reefs and inspect supercharges :)

It seems like there will be quite a few systems on the market at the same time...

Pettit - December
Blitz - December
SSR - Who knows :)

I think i'll wait and see what you produce as well.... Omicrom seems to be behind you as well as many other well respected board members.I am indeed. :D

Are you planning on porting and polishing the intake?? ;)

;) ;) - Right back at ya! :) :D

Your out of control man.. I cant wait to see this...

Please dont be like the other companies out there..

well.. nevermind... I was going to say.. please dont be like the other companies and not share any information with us at all... but you havent.. and have done the complete opposite...

We appreciate all your work... and love the updates.. as you probably know...

;) ;) - Right back at ya! :) :D


Like Ali G would say NICCEE!! :D

*bump*


any updates of of late?

*bump*


any updates of of late?

OK - I suppose it is a week since my last update.

Work has continued with the design and manufacture of some bracketry / plumbing / pulley adaptors etc.

Still on schedule for the engine dyno testing with a couple of engines during the early part of November. I can't wait.

Cheers,
Hymee.

OK - I suppose it is a week since my last update.

Work has continued with the design and manufacture of some braketry / plumbing / pulley adaptors etc.

Still on schedule for the engine dyno testing with a couple of engines during the early part of November. I can't wait.

Cheers,
Hymee.

You're seriously still considering building this lousy contraption? I was counting on you to make the plastic axial flow unit, this one is junk :p . Haha I'm just playing. Anyway it's good to know you're right on schedule, I can't wait to see your results.

Mate,

As long as your playing with yourself, and not me :eek:

Cheers,
Hymee.

It seems like there will be quite a few systems on the market at the same time...

Pettit - December
Blitz - December
SSR - Who knows :)

I think i'll wait and see what you produce as well.... Omicrom seems to be behind you as well as many other well respected board members.List should read:

Pettit: Currently available!
Blitz: December
SSR: Who knows, but soon probably :)
Sunflower/ATI-Procharger: December or sooner.

Oh yeah? I know your fairly close to this project.. can you share any more details about it? That sucks about Pettit doesnt it..... I bet they are pissed about the review haha.. Maybe Hymee will beat them all to market starting last....

We'll see.

That sucks about Pettit doesnt it..... I bet they are pissed about the review haha..

Where is that review??

Right here....

http://www.rx8club.com/showthread.php?t=40803

I know you wont make the same mistake as they did..

Getting with a major publication before the product is fully tested and have them bashing the hell out of it..

Not very good PR now is it....

A mistake - What is that ??? :rolleyes:

Thanks for the link. I will study it well.

Cheers,
Hymee.

I don't think that this question has been asked, but I could be wrong. Am I correct in saying that you are located in Austrailia? I think you are as it says in your little info section. But anyway, hypothetically someone has a problem with their system and needs to send it back for repair or whatnot(not that a superior system such as yours would need repair :p ). I assume your partner in crime is also down under so the company's home is their and we would need to send it there. Is there a chance that you might set up a small shop somewhere in the states? I am only asking this because of the high shipping costs from here to Austrailia not to mention it is not a small object, as well as a lengthy shipping time. Any answers would be greatly appreciated, and I am really looking forward to your results.

Cheers,
Andy.

P.S. I only stole your signature closing because for some reason it made me feel good or something. Don't take it personally haha.

This could be a rumour but i heard Hymee and Dr Phil and associates are setting up a company called ....Mc Hymees..... this is to be a franchised arm of the Hymee Enhanced group which is going worldwide in its efforts to support its customer base once his range of products relating to the RX8 are released . :D :rolleyes:

Applications forms for the interested parties in the Mc Hymee franchises will be forwarded in due time . :) :rolleyes:

cheers
michael

It's not McHymee. It's going to be called Hymee King.

Oh dear, are you all trying to Enhance my image???

Andy,

Lets just take one step at a time, hey? To date, no products from the house of Hymee have been DOA or failed in use. The supercharger project though, is a much more massive undertaking. I won't try and forsee how things would work in the circumstances you describe, but I believe most manufactures probably operate in a similar way - return to base. There are other options - like I could include an extra contingency in my pricing to cover such events at no cost to the user. But it would be a cost to the user - the price would be more expensive up front. So there is a lot of thing to think about. For the main component, the blower, I will offer the standard warranty given by Autorotor.

But lets get someting up and running before we jump the gun!

Cheers,
Hymee.

(It is not my signature - anyone can use it!)

A mistake - What is that ??? :rolleyes:

Thanks for the link. I will study it well.

Cheers,
Hymee.Pettit made 2 mistakes. First, that they didn't tune the intake correctly and are having idle problems. Secondly, that they are only getting a 50 HP gain on 8 Lbs of boost... which to me, indicates poor tuning.

Sounds good Hymee. I wasn't predicting failure of your products, you know just hypotheticals. I just wanted to make sure you werent going to send us that plastic thing and then hide away and steal our money. :D No, but seriously I'm sure it will work out fine. But the Hymee King thing sounds cool!

Hymee,

Hows it going on your FI project? This is a reply to a post from another thread (you know which one). :) I would think your starting to get close to maybe plumbing it up by now and would love to see a recent pic when you do get there. I know it will be on a bench to start but it would still be exciting to see it.

Hymee already said his last update was still current... Meaning, he's at the point of almost being able to dyno and get some hard numbers....

Thats it.

It's only been a week and a half since his last update... If he had more to give then it would be here. He's been awesome about updates.

Pettit made 2 mistakes. First, that they didn't tune the intake correctly and are having idle problems. Secondly, that they are only getting a 50 HP gain on 8 Lbs of boost... which to me, indicates poor tuning.

Thats what I was wondering. Isnt the formula something like 14hp for every psi of boost? That would at least take it over 100 hp at 8psi....

This must be a dog of a tune if they are only getting 50 and even projecting 50 as their target number...

Geezz guys, you have to spend more time paying attention in class. Didn't rotarygod just give a lecture on not being able to relate HP to manifold pressure. I don't remember which thread it was on but there were all these theorys being put forth about pressure HP gain. Maybe you could just find that battering of nonsense or I'll have RG give it again. You don't want that now do you?

Anyway to make a statment that x psi = so much power added is so unrealistic that it is a non starter. There are so many factors that I can't even begin to list them. It is nessasary to know so many inputs that a mathmatical answer is not going to be forthcoming. I've been looking for that equation for 40 years.

I have set forth most of the math that applys to this topic elsware. Even given all that thinking the only way to know is the dyno. I have someplace a study by Rolls Royce on designing a supercharger for the Merlin. Nowhere short of a moonshot has any more math been applied to something. Then after all that they return to do a paper that justifies the results vs the predictions.

Those are some very serious engineers, probably the best in the world at the time. Considering the point in time (WWll) there was no shortage of budget for the development of the Merlin. True a lot was learned from these well documented developments. We use some of this info to work engines today. Thankfully we have calculators and computers now, I wouldn't have to go back to a sliderule and do what they did.

You must consider that Ricardo said the Merlin was the finest peice of engineering in the world. Well maybe he said one of the finest. But it's in his book someplace. For you young ones Ricardo was the man who wrote the book both figuritively and litteraly (However you spell that.) on "The High Speed Internal Combustion Engine".

His books have been out of print for decades but if you are serious about engines you should try and find and read it. He was truly the genius who made so much progress in the '20's through the '40's. A critical time in it's development. While he worked mostly with aero engine it's all the same stuff.

He has chapters on supercharging and all that relates to it's performance. Now that I'm thinking about it I wonder where my book is. I usually have it handy and I don't see it. If any of you guys stole it bring it back. You did it, didn't you Hymee?
My secret files weren't enough?

Richard

In a perfect world, you'd exactly double your power for every 14.7 psi of boost that you add. In a perfect world, 7 psi added to a car that makes 180 hp would add up to 265 hp. Now take into account losses through the system from exhaust restriction, added intake heat, etc. Do the math on that one! I'll believe 250 rwhp from an originally 180 rwhp car. If the car made 190, just add 10 more or so to the final number.

This was said by RG.. Sorry for not stating the words.. in a perfect world....

We are all in this for information and I do not profess to be an engineer by any means.. but we all want information....

Calm down. geezz

Everyone is calm here. It is a condition of entry ;)

Cheers,
Hymee.

I'm calm, not upset at all. I even enjoy teaching people things. Makes me feel a life of learning has a meaning. After all I can;t seem to make any money with it.

It is just that I keep seeing all these people who have read to many car magazines. While there is a lot of info in them there is a lot of BS also. You can't be expected to sort it out and I understand that. I even read one artical on supercharging that said 100% efficency would yeild no temp rise. That is free energy and if the guy was awake in high school he would know that. His editor also.

It is very complex to understand the whole three dimentional prosess of how the IC engine works. It is something that you get over years of working at it. You wake up one day and say "hey I see it". On the other hand you don't have to understand the whole thing it's to your credit that you want too.

At the begining of my own thread I went into a lot of math and you might want to reveiw that. I will be happy to answer any questions.

At the moment I am stealing the mic from my buddy Hymee on his own stage, so I'll bow out now.

I'm still loking for my book Hymee. You had that bulge in your shirt. I should have handed you over to the cops when I had the chance.

RAP

I'm still loking for my book Hymee. You had that bulge in your shirt. I should have handed you over to the cops when I had the chance.
RAP

ROFL! That buldge might have been my gut. But I am working on that. 2.2km swim this morning. It wouldn't have been any other bulges - after all that time on the plane, and being in a totally foreign place, your partner blue-ing with his partner ;) (girlfriend - confusing, hey?? At least you guys speak American. I only speak english). The cops where quite nice, the female one would have been the closest thing to giving me a buldge. Was that LAPD? But I was hot, tired, thirsty and hungry. Thanks for the lunch - that sorted out the heat, hunger and thirst.

OK - that is enough rambling. I don't usually carry on like that.

Who would like some pics of some related, but unrelated work Phil has been doing? You know - like a 20-B cast alloy manifold?

Cheers,
Hymee.

...or I'll have RG give it again. You don't want that now do you?



LOL! :D

I thought you would like that comment :) I am glad we are all calm...

Thankx for the words.

It's been a week Hymee...WHERE'S OUR UPDATE!?!?!?!
Haha I'm just curious as to how you're making out with everything. Update when you can, our thirst for news needs to be sated. Thanks.

It's been a week Hymee...WHERE'S OUR UPDATE!?!?!?!
Haha I'm just curious as to how you're making out with everything. Update when you can, our thirst for news needs to be sated. Thanks.
Leave him alone! ;) He's too busy boxing Hymee stuff for me. :D
He should be available again Friday afternoon QLD time...:p

Leave him alone! ;) He's too busy boxing Hymee stuff for me. :D
He should be available again Friday afternoon QLD time...:p

Sounds good haha. I was just messing around and really only posted to bump the thread back to the top.

OK,

I have an update of sorts. When you run a motorsport business, you have lots of things on the go. That includes having time off for new borns to come into the world. The last month has been a bit like that, but tomorrow Phil is doing a lot of scheduling planning.

When that is done, I can give a date when we will be booked into the engine dyno.

And also, next week I should be able to post some pics of the test engine be rigged up. Some of the parts etc. wont be final, or in their final place - rather it will be a test mule to ensure it all works. It might not even be with the final water-air intercooler. But it will be something - even including a set of headers. :D

So hopefully your patience (and mine) will pay off, and I can show some cool stuff next week.

Cheers,
Hymee.

Hymee

I spoke to some people who have worked with Dr phil , and whilst most have said that hes a rotary guru , they did mention that he works at his own pace that being Slow......... :eek: so your patience will be truly put to the test , good luck ;)

cheers
michael

L&L,

I'm not sure what to make of that comment. It certainly does nothing to add any value to this thread.

I suppose if you have 24 hours a day to get stuff done, you need to work at your own place. I'm glad nothing in this project is getting rushed to suit some artificial deadline. Some other engine builder might leave out a seal or 2, but at least they got it done quick. FFS.

I'm actually amazed at all the work I see him get through. You actually have no idea.

When I rang him on Monday, he was in Sydney, dynoing a race car for a client. At the moment he has a 26B engined race car in the workshop he has to get work done on. Plus all the race cars of regular customers that have to be ready for this months rounds of racing.

Later this week he has some scrutineering work to do as an ANDRA offical, in recognition of his highly regarded experience with electronic engine management systems.

All this while his wife has just had a bub, and he is "on leave" helping out with that as he can.

I am really dissapointed to see such unjustified comments, Lock.

Cheers,
Hymee.

OK,

I have an update of sorts. When you run a motorsport business, you have lots of things on the go. That includes having time off for new borns to come into the world. The last month has been a bit like that, but tomorrow Phil is doing a lot of scheduling planning.

When that is done, I can give a date when we will be booked into the engine dyno.

And also, next week I should be able to post some pics of the test engine be rigged up. Some of the parts etc. wont be final, or in their final place - rather it will be a test mule to ensure it all works. It might not even be with the final water-air intercooler. But it will be something - even including a set of headers. :D

So hopefully your patience (and mine) will pay off, and I can show some cool stuff next week.

Cheers,
Hymee.

Sounds awesome man, I can't wait. I'm glad you're taking your time, a product that is rushed is rarely of any quality, keep up the good work and good luck with the rest of your project.

Hymee

There was no harm or malice intended with my post , sorry you took it the wrong way , i realize that his workshop has other projects /priorities than supercharging the RX8.

What was ment to be said was that he is thorough in his work and works at his own pace so you and others are going to have to be patient .

cheers
michael

Hymee

There was no harm or malice intended with my post , sorry you took it the wrong way , i realize that his workshop has other projects /priorities than supercharging the RX8.

What was ment to be said was that he is thorough in his work and works at his own pace so you and others are going to have to be patient .

cheers
michael

Perhaps I took your comments the wrong way. I did 2km swimming thinking about an diplomatic response.

Its all good. At the end of the day, this is going to be awesome!

Cheers,
Hymee.

Sounds awesome man, I can't wait. I'm glad you're taking your time, a product that is rushed is rarely of any quality, keep up the good work and good luck with the rest of your project.

Thanks Mate,

Do you want to go on the list as well ;)

Cheers,
Hymee.

Thanks Mate,

Do you want to go on the list as well ;)

Cheers,
Hymee.
List? Not sure what this means. If you are looking for to sign up to purchase it, as of now I have no car. Poor college student saving up. I should have my 8 in the June-ish area, and I am certainly looking into this project. So keep me in mind, but as of now, no list. Thanks Mate. (I love some of these words) Keep doing what you're doing.

Cheers
Aoshi

What list? You peeked my interest :) I love lists.

Michael, lay off him buddy.I think you should be grateful for what Hymee and Dr Phil are doing, in their own time and out of their own pocket, without any guarantee of any rewards, if it takes another 6 months so be it. You could always source forced induction from another supplier.

I'm sure Hymee has other commitments to take care of (ie. family, friends, work) which have greater priority to devloping a SC overnight.

However if you would like to invest capital into the project then I'm sure you may be justified in a lack of patience.

Hymee.....take your time because I'm sure the quality will speak for itself!

Michael, lay off him buddy.I think you should be grateful for what Hymee and Dr Phil are doing, in their own time and out of their own pocket, without any guarantee of any rewards, if it takes another 6 months so be it. You could always source forced induction from another supplier.

I'm sure Hymee has other commitments to take care of (ie. family, friends, work) which have greater priority to devloping a SC overnight.

However if you would like to invest capital into the project then I'm sure you may be justified in a lack of patience.

Hymee.....take your time because I'm sure the quality will speak for itself!


Whoa baby.... ease up a little...

"There was no harm or malice intended with my post ,..."

I think L&L's comments were meant to be light hearted...

Whoa baby.... ease up a little...

"There was no harm or malice intended with my post ,..."

I think L&L's comments were meant to be light hearted...


Littlejohn

Thanks for backing me up , some members take everything way to seriously ;)

cheers
michael

L&L is in the same boat I am (and probably 5000 other RX8 owners) we really want a FI kit and everytime an update is posted we get ummmm :rolleyes: ....exited.
Hymee I wish your product was ready for release, I wish that every person working on this project could drop everything and get it finished........HOWEVER....... I am not Peter Pan and this is not Never Never Land, soooooo.....
I am looking forward to the day the project is ready for sale, despite any posts that may appear less than flattering I can assure you that I can speak for almost everyone that we are willing to wait as long as it takes to get a QUALITY product. I did not spend A$70,000 to get an after market FI product that kills my car.

So in summary, Hymee, take your time, do it well, and add me to the list for one (this is not an idle tyre kicking yes). I want a product that is going to work and be reliable, get real and significant gains and you my friend seem to be at the forefront of the game here in Aust.
Our enthusiasm sometimes comes across as hostility when in atcual fact it was never intended that way.

Keep up the great work, I look forward to the end result.

Regards,

Gibbo.

OK Guys. All frustrations have been vented, nuts kicked and kicked back.

Meanwhile, I can assure you it is happening.

Gibbo - thanks for you very reasonably worded reply. You just earned a place on the list :)

Cheers,
Hymee.

Just out of curiousity, how many are on "the list" now? :D

Don't worry mate, your right up near the top :D

Cheers,
Hymee.

I'm on the shit-list at work...any possibility on getting on the Hymee-enhanced list :)

long time reader, first time poster (on this subject).
Wha...what list?

I'm on the shit-list at work...any possibility on getting on the Hymee-enhanced list :)

Same possibility as everyone else!

Cheers,
Hymee.

Hymee please put me on the list, what do I need to do?

Hahaha, Hymee you slay me. You've got everyone, including mods concerned about this "list." I find it quite comical, and I'm pretty sure you're the only one who knows what this list is. Anyway, I just felt the need to post somewhere other than the lounge. Keep working hard on the supercharger. You have no idea how much we appreciate you doing this for us. :D
Cheers,
Aoshi

I think the list is a state of mind, rather than an actual list :)

Actually, I know I'm near the top. I was really curious as to how many people are on "da list." :D

The "list" is a bit of a arbitrary thing. But is is fun to see people wan't to "get on it".

I have people who are lined up who publicly advertise the fact, i.e. Omicron. I have others who are "definates" who I trust, but are less public about it, and I must honor that. Then there are those that say "I'll get one". In reality, I have not asked any money from anyone...

As for the "Hymee Enhanced" list - they are all my existing customers, and any of you can join that list!!

Cheers,
Hymee.

So, there is a choice of lists from which to choose.

The plot thickens.

The "list" is a bit of a arbitrary thing. But is is fun to see people wan't to "get on it".

I have people who are lined up who publicly advertise the fact, i.e. Omicron. I have others who are "definates" who I trust, but are less public about it, and I must honor that. Then there are those that say "I'll get one". In reality, I have not asked any money from anyone...

As for the "Hymee Enhanced" list - they are all my existing customers, and any of you can join that list!!

Cheers,
Hymee.
I totally would...if I had a car. I'll be looking at your shop when I start lining up the order for parts. That will be around April or so. The Hymee Logging computer unit is looking nice, as well as the twin screw s/c, which is definitely tempting. Unfortunately I have not thoroughly looked into any of your other parts. I'm actually going to go and change that. Since I am ignorant I do not know your website address so I'll go google it up. Stay Awesome

Aoshi

The Hymee Logging computer unit is looking nice
Wait til you see the latest version... it's even better (if I don't say so myself)

Thank you Hymee for all you and Dr. Phil are doing for us, it does not go unappreciated on this end. It is humbling to me that someone shows such interest in a bunch of misfits like us on the forum. Thank you for your deligence and providing us with updates when we think we couldn't last any longer...

Christian

Wait til you see the latest version... it's even better (if I don't say so myself)
Sounds awesome. Forgive my ignorance, but to my understanding this is something pretty universal, if we wanted we could hook it up to any car? Or am I seeing this the wrong way and it is exculsively RX8? Thanks.

Wait til you see the latest version... it's even better (if I don't say so myself)

Do you know when this unit is being released?

I think we need to keep these last comments about the Hymee Logging Box in the intended thread here:

http://www.rx8club.com/showthread.php?t=39583

Oh yeah.. forgot about that thread.. will do.

Bump...

Pettit made 2 mistakes. First, that they didn't tune the intake correctly and are having idle problems. Secondly, that they are only getting a 50 HP gain on 8 Lbs of boost... which to me, indicates poor tuning.
So even with "poor tuning" they got 50HP... What do you think they would have got with "good tuning"? and with a 1/4m in the low 14's, what do you think it would take to get in the 12's if thats even possible?...
Thanks.

So even with "poor tuning" they got 50HP... What do you think they would have got with "good tuning"? and with a 1/4m in the low 14's, what do you think it would take to get in the 12's if thats even possible?...
Thanks.With good tuning and 8Lbs of boost, I would expect at least 75WHP, maybe more. And based on the weight of this car, with FI getting the WHP to 275 or so, I would expect mid to low 13s in the 1/4 mile.

Hi guys,

Time for a small update.

The machinist and the paternmaker are working on some ducting/adaptors to mount on the S/C. Unfortuneatley I don't have any pictures to show of that yet.

Yesterday we did some trial mounting positions prior to getting some brackets fabricated.

These pictures show a bit, but please don't think it is all finished. I.e. the bracket you see is just a temp job, so are the bolts etc. Also, this is about the finished height, and fore-aft position, but we might move is a little more closer to the alternator.

http://www.hymee.com/rx8/images/dscn6904.jpg

http://www.hymee.com/rx8/images/dscn6905.jpg

The TB is sitting close to where it will end up, but it is not in the exact orientation in the photo (it is just hanging there).

Notice we have got the top of the blower lower then the mounting bracket for the alternator, so this actually lower than the strut brace. There is still some ducting to go etc, but this will give an idea.

Hope this is of interest!

Cheers,
Hymee.

Hymee, are you going to include a heavier front left spring with the kit??

looks great.. Cant wait to sell them :)

Hymee, are you going to include a heavier front left spring with the kit??

Oh-c'mon, no smilies or winkies?? :(

My exhaust is considerably lighter than stock, so mabey I get a few brownie points for that.

Actually, I admit that at 14kg, this unit is heavier than your axial flow, but I must say your unit was larger and much heavier than I expected when I saw it in the flesh. Much more so that I was expecting after seeing all the pics.

At least it is all mounted behind the front axle centerline still. Anyway - I need 14kg ballast on the left when I hop in the car. Like, I only weight 80kg Hahahaha.

Cheers,
Hymee.

gooday mate,
i gotta tell ya, im pretty impressed. I was planning to get a turbo in Jan and now u might have buggered that up with these pics.

wow. you ozzies are really putting the hours in. Shit i might have to wait!

Hymee

Thanks for the update :cool: :D

I have lost nearly 15kg by going to the gym / balancing out the weight of the supercharger ;) i just hope i dont put it back on while i wait for its completion . :D

cheers
michael

Alrighty then!

Where's the air/water intercooler going?
Discharge port on top?
Intake to the back?
It's gonna be interesting to see it all connected-up. We're rooting for ya! I'm bragging about you on another car forum. :)
If you need any help, www.alphamfg.com or pm me. :drool:

Micheal,now it's my turn, LOL!

Patience buddy

hymee, just looking at the pictures I can feel the power

Looks good mate

Hymee i would like to ask something,

on your web page u have a sound clip of the exhaust - does this car also have that s/c????
:):)sounds fab

VERY NICE HYMEE! you do realize tho that your blower is as big as the block right?:):)

Hymee, Hymee, I'm only ribbing you. I know that you will balance it out with the intercooler on the other side.
Then you will just have to re-aim the head lights.

Good on ya mate. Keep up the good work.

Awesome... and daaaaaamn, that's BIG. :cool: You going to be able to make it fit under the hood, or are we all going to have to cut holes in the hood? :D

Seriously man, I can't wait to see it all plumbed in...

15kg...:eek: That is very good. That means you have 30kg to go ;)

Hymee good job and thx for the update

Hymee

ok i'll be honest and say i never read all the posts from the start, and, now i wish i never because i feel like crying, crying hard. Will this ever be available for the auto, or let me put that to you in a more positive tone, gulp, deep breath,

will it be easy to convert it over to an auto once yours is perfected since i have a feeling your not too far away? PLEASE say yes!

I feel so sad cheer me up!

Oh-c'mon, no smilies or winkies?? :(



Hymee, Richard's done 286 posts without a single smilie (well, I can't recall ever having seen one :) )....don't expect to see one now!!!

Looks great, BTW.

Gomez.

Hymee

ok i'll be honest and say i never read all the posts from the start, and, now i wish i never because i feel like crying, crying hard. Will this ever be available for the auto, or let me put that to you in a more positive tone, gulp, deep breath,

will it be easy to convert it over to an auto once yours is perfected since i have a feeling your not too far away? PLEASE say yes!

I feel so sad cheer me up!
I don't know about Hymee, but it is my intention to make the Hymee kit available for the Standard Power in Europe. There should be only minor engine management mods to get it to work on a Standard Power.

That's cool but i'm abit lost with terms here, standard power?
What do u mean by this?:)
Are u refering to the auto's?
thanks:)

There is no auto version in Europe but :
- a 4-port 192 hp Standard Power 5MT (corresponds to your auto version in US)
- a 6-port 231 hp High Power 6MT

Aha ok cool, mines an auto from Japan so i understand that (i think), although wouldn't there be a difference with the vunrability of the tranny on the auto?

Not trying to get this thread off track since if it's not proven on the manual 1st, it wont be proven on the auto, but don't u think this would be the case? :)

My understanding has always been that auto transmission could handle more torque than manual gearboxes. Can anyone confirm?
There is initially no intention to modify max engine speed for the Standard Power, so the auto trans should not be at risk.