Rotr8

iTrader: (2)

Cam doesnt really concern himself with the forum, hes to busy with his day to day running his shop activities,,, There are plenty of other shops that are the same, that arent really active at all here,,, That niether validates nor dispells any such quality in any of thier products,,,

blackenedwings

Honestly, I'm totally with Jeff on this one. That might be a first when it comes to the forum. I think that anybody making any kind of claims about the virtues of the Hymee kit without either owning it, or long term experience with it based solely off of conversations with the designer and seeing pictures is doing a GRAVE disservice to anybody looking for a FI solution. Yes, the CNC work for the Hymee kit is pretty... and I've heard the assertion several times that it is "art". You know what, you can keep your art, I'll take the 330 torque chickenwafer is putting out with his 3071R.

I know there are a lot of different reasons to pick an FI system and I'm long said there is no "one best solution" but until there is a lot more information available on the Hymee setup as used over a longer period of time with multiple owners in different situations I would be hesitant to recommend it. If I had to pick a supercharger kit for this car (and I wouldn't) I would prefer the Pettit kit because of the wider use. I am however very fascinated at the almost religious devotion to Hymee's product by a few people on the forum (including one of my best RL friends). The cost to power ratio of the Hymee kit as marketted is low in my opinion and no amount of "artistic value" will change that. Also any claims that it is somehow safer, more reliable, or anything else is pure and utter nonsense and the people saying so should be ashamed.

chickenwafer

iTrader: (9)

Don't you know, supercharges are like water softeners for boost, they produce "less intense" boost and thus are more reliable (that is an actual quote from someone I've heard before LOL)

And everyone knows superchargers produce more torque, :LOL:

05rex8

iTrader: (7)

superchargers have 190 torques ftw tho....

blackenedwings

Yes, they are "soft boost" so they are more reliable... lol, I've actually heard this by a couple of people. I saw a YouTube comment recently saying anybody with an RX-8 should get a supercharger instead of a turbo because they are "more powerful, and less damaging to the motor".

Anyway, that sort of gets off topic and into the whole SC vs TC debate which is neverending... the OP is presumably already interested in getting a SC at this point. Which one is a matter of opinion, but not a lot of data points yet for Hymee's product. Just to clarify my earlier points, I am absolutely NOT saying that Hymee's product is bad... I'm specifically saying that outside of the handful of people who have actually experienced it, its ridiculous to make any claims about how awesome it is.

mysql101

Turbonator has far more sold than any FI kit for the rx-8 and likely zero issues with part failures.

That means it pwns you.

Brettus

iTrader: (2)

They produce way less boost at low rpm (in most cases) and therefore way less torque .

And torque is what stresses the engine (not hp) so it follows that SCs are easier on engines than turbos .

Actually makes perfect sense .

mysql101

just dial down the boost if you're worried about stressing your engine. actually, just buy a pruis if that is your concern.

Brettus

iTrader: (2)

Me ? No I likes the torque - as long as I get 40-50000kms out if it I'm happy

TrochoidMagic

TC users report having to combat heating issues on the track. they are great for power, but also produce much more heat. not to mention extra plumbing and heat exchangers to clutter up space.

its great to get feedback from many TC users... but we need helpful info.

and a higher output device does not justify it as a better product! so a SC may be just the thing for those searching for a given performance gain that falls into their HP goals.

do the SC overheat during track use???

love to find out.

BOOSTD 7

I've got to the point where I try to support the individual behind the product as much as products themselves ... that goes for a lot more than just cars. That said I'd go with Pettit because Cam has been a friend to me personally, and has supported the rotary community since I was sucking tit. That is in no way a knock against Hymee, just support of Cam and Pettit.

AND, I have driven a couple Pettit supercharged cars in various states of development. They all felt exactly like what I'd want for a daily driver. If I was building one as a second car or a track car I'd go with a custom turbo setup. But for a daily the support you get from Pettit would be important, combined with how well it performs and feels it'd be an easy decision for me personally.

Brettus

iTrader: (2)

more power = more heat . Think about it

chickenwafer

iTrader: (9)

OD overheated on the track with his Pettit, until he fitted a second radiator like some turbo cars have to do.

My car doesn't overheat that easily. I did 15 virtually back-to-back dyno pulls and my coolant temps never went above 198F, and that' with very little air flowing over the heat exchangers.

blackenedwings

Any car that is generating more power is going to generate more heat, this isn't something that is unique to turbocharged cars. There are lots of things that can be done to combat the heat problem. My car actually runs ridiculously cool... I'm not entirely sure why; although my temps did drop dramatically after I changed to the Tsunami front bumper. My oil temps dropped 15+ degrees on average especially at speed due to clearing the restrictions of the OEM fascia. Ask Jeff how my car handled 14 straight hours of dyno tuning and 5+ hrs of street tuning in 98 degree heat.

Anyway, as to the comments from turbo guys about this issue, there really isn't much else to say, Hymee's setup is pretty but there isn't much data so you are taking a bit of a leap of faith purchasing it right now. I mean, someone has to blaze the trail, and any new aftermarket support for the RX-8 aren't a bad thing. Pettit is a bit more known and the Pettit customers seem very happy with the product. For SCs thats about the size of things. All of us turbo guys think there is a better option. *shrug*

chickenwafer

iTrader: (9)

Exactly, that is what I am getting at. People seem to think superchargers don't make you car overheat but turbos will...just misinformation

Symbioticgenius

Supercharger
Hymee: Not much user info on it. Hymee has detailed info on his kit, but no Wheel Dyno, and to my knowledge he is the only person with it running in a car. If you are thinking about this kit, wait until a few ppl try it out first.

Pettit: Great system, I have researched it and considered it at some points in time. SC's don't usually generate AS MUCH (still more than stock) heat, and are THOUGHT to be more reliable than turbo's, but on a daily basis we have turbo users proving otherwise. However the Pettit system hasn't had any notable problems thus far (3+ years), and if you are looking for something tried and true, with little extra maintenance, Pettit is for you.

Turbos
MM Greddy Upgrade: (modified Garrett GT3071R(WG) turbocharger). So far not a complaint about this whatsoever. Chickenwafer recently blew my mind by making 325 torque with it, and I believe so far the only person to have HP and torque numbers within 20 of one another (Think Hemi). Its more of an upgrade than an actual kit, but MM was smart enough to realize there is no need to reinvent the wheel. I would say power wise, this is the best bang for your buck. MM works closely with BHR, making it easy to acquire supporting mods for your turbo and good support. Also offers Tuning support

Esmeril Racing: This has the highest published Horsepower numbers, and has been stated to have higher unpublished numbers. A very good kit, well designed and backed by a company who's main goal is to push the Renesis beyond its current capabilities. Offers supporting mods, (injectors etc) and standalone ECU.
I personally consider this kit an amazing starting point for those capable and willing to push the envelope. Chris (designer of the kit) has stated that there is much room for improvement with the kit, which scares and excites me. Also if you choose to run Ethanol as he currently is, all those heat issues stated by everyone become obsolete.

Note (Disclaimer): Ethanol can be run with any of these kits, however the Esmeril and Hymee kits are the only ones doing so to my limited knowledge.

If you are dead set on Supercharger, go with Pettit. Its proven performance.

If you are willing to go turbo (its not like its hard...) Either of the choices I have stated will do you justice. MM Greddy Upgrade if you want power, reliability, and a good tune can get you some damn nice torque. If you want all those things, and to push the envelope a bit, go Esmeril.

In the interest of fairness I feel its necessary to mention the BNR Greddy Upgrade and the Fluid Greddy Upgrade.
I won't say much cause I haven't researched them thoroughly like the others.

05Rex8 has already stated disappointment in the Fluid upgrade stated here
https://www.rx8club.com/series-i-major-horsepower-upgrades-93/highest-horsepower-dynos-sc-turbo-nitrous-post-them-here-180037/page8/

J.Cab states he is the first 1st BNR owner here
https://www.rx8club.com/series-i-major-horsepower-upgrades-93/highest-horsepower-dynos-sc-turbo-nitrous-post-them-here-180037/page6/


oh... and you spelled supercharger wrong.

blackenedwings

Good little write up Symbiotic! I would definitely point out that the BNR upgrade deserves some serious investigation. I have the MM 3071R and I'm extremely happy with it, but it takes a long time for Jeff to make them, and its the most expensive turbo upgrade out of the available options so its not for everyone. The BNR upgrade looks pretty good and is very reasonable in price and ships very quickly as well. If I were looking to turbo my car at this point and was in any kind of a hurry I would check out the BNR. The Fluid turbo "upgrade" doesn't resolve the cooling issues with the GReddy unit, so its life expectancy is minimal and is nearly the same price as the BNR Bryan offers.

Symbioticgenius

Im gonna go read that BNR thread and post thoughts... brb.

chickenwafer

iTrader: (9)

The BNR turbo is also somewhat of a "darkhorse" since no one has really uncorked one....yet. JCab is set to dyno with Kane on the 11th so I am interested to see what happens. Ultimately I think it's power will be as good if not better than the 3071R but with a slightly less impressive power curve.

Symbioticgenius

Ok just read all 19 pages on the BNR turbo upgrade. Took too long cause my net died at page 6...
I will not pass judgment yet, but will state what I see\think so far.
1. There still is no dyno, although a few ppl have the upgrade. We will see soon enough.
2. Looking at the Flow maps it seems that there is definite potential, but I think its roughly equivalent to the MM upgrade. The good thing about that is that its almost a grand cheaper than the MM upgrade.
3. Bryan impressed me greatly with an action shown here
https://www.rx8club.com/series-i-major-horsepower-upgrades-93/newest-100%25-bolt-greddy-hybrid-turbocharger-168286/page18/
there was damage to the wastegate actuator which was no fault of Bryan's, but a design issue due to space constraints, Bryan forked up $100 to cover the repair. Highly Impressed by his service.
4. Other than some well deserved vacation time, it seems as though everyone has received their units within the quoted 2 week timeframe.

Currently, I have not passed judgment. I'm a strong believer in "you get what you pay for", so for a grand less, If I'm at least seeing 300+HP numbers and respectable torque, I will definitely view this as a viable option. In theory this will be reliable (definitely moreso than the Regular Greddy garbage), but I'll leave that judgment to time.

Brettus

iTrader: (2)

Me thinks the ultimate FI setup for the renesis is the 3071r tubo bored out to fit the 76 wheel . I think the 3071r compressor wheel is a little small to be optimal .

bse50

We're investigating this option here as well. Luckily enough we will have a reply soon. We're building a (don't kill me) drift rx8 now so we're all a bit tight on budget to go fast into this expensive idea.

swoope

iTrader: (5)

wow,

as only one is out for sale and has been run for a while.

how hard is this.

is the bhr on the horizon? did i miss something? if i did i was busy being pissed of at stupid people.. is wipe you own but in the owners manual?

as to hymee. wow. he has put way more time and development into his poduct before release than anyone. i hope that is a win for him..

but this thread fighting of the one available and two not yet, why. no #s

he said she said..

i hope they all win..

now search! and dont forget to de badge. and when in doubt take the time to rip off mazdamaniac if you are in a foreign county. i hear it is easy..

beers

paulmasoner

iTrader: (1)

the retarded amount of misinformation and people talking about things that they obviously have no ******* clue about is one of the big reasons i peek in on the forum only rarely these days....

its one thing for someone to just not be in the know, but when the same exact conversations happen multiple times over the last few years - and the same dumbasses keep spouting off the same BS they were in the past. even though they have been shown otherwise.

just one example - how hard is it to understand that the thermal effects of combustion are directly proportional to the amount of air you put in(given otherwise equal conditions like ratios/ign/charge temp) it simply doesnt ******* matter HOW you put the air in. if you cant understand the principles/physics in that you dont need to be ******* with your car, period

the ONLY leg this has to stand on is an issue specifically related to the design of the Greddy kit, NOT something inherent to turbos/SC. sure, if you put enough air through the greddy manifold its likely you may begin to build excess thermal radiation through the mani and back into the irons. thats a GREDDY design/placement issue. not a turbo issue. and what kind of measurable effect that could even have on the cooling system has never been quantified on this forum - its only been discussed in any depth what effect this could have on side seals.


the other things in this thread and the couple others i checked today, i'm not even going to touch. this forum has a LOT of great information, but honestly after hanging around long enough to learn some basics, and get comfortable with all my shop manuals etc.. its a waste of time to come here for most anything. even those who bring new ideas and technical thoughts to the table usually spend more time explaining themselves to others than having any intellegent discussion with anyone to progress the original thought/idea

blackenedwings

I get that you are pissed off at the general lack of knowledge and douchebaggery on the forum paul, but there are some really bright folks on here too and some people pushing the hell out of the car. I never would have gotten even remotely close to having my car without the knowledge on this forum, and learning the things I've learned. Granted I have a reaaaally long way to go to match the knowledge of some of the guys here, but thats what is fun.

Yes, people are constantly spouting the same crap... but some people combat the rampant spread of disinformation as much as possible and there is a lot of worthwhile stuff on this forum. Don't give up on it entirely.