View Full Version : RotoRocks Remote Turbo Stage II


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HiTMaNN
02-22-2008, 12:57 PM
So the car running yet?

rotorocks
02-22-2008, 03:51 PM
Not yet. I have my suspicions though.

Brettus
02-23-2008, 12:10 AM
oh oh !

rotorocks
02-23-2008, 12:32 AM
oh oh !

:lol: Not so much drama, but it isn't the plugs either.

SoFL_RX8
02-24-2008, 07:36 PM
Devon (sorry about spelling if wrong),

You sneaky jerk...going FI I see! Well I have to say that using Rotors setup is one I contemplated myself. Very good choice my friend. Just make sure after the prototype is complete and your install gets completed that you give me a ride...hehehe!

BTW, I'm moving to Miami so I will be able to hang out with the DSR people more often I think.

Subscribed...

Yea, I always told you I had plans to go FI on this car. I already bought my INT-X and Im waiting to get my finances in line, but shortly Ill begin the build on my mid-mount with Vlad.

Let me know when you move down here and we'll meet up. Been quite a while since we've last chilled. By that point I may have the turbo in the car, we'll see.

Vlad, if you cant get your car started in the near future and need a test mule for the proto-type, you know who to call ;)

SoFL_RX8
02-24-2008, 07:39 PM
Vlad if it wasnt the plugs, or the coils (which looked fine except the one when we pulled them) then what could it be? Car sounded okay when we got it started, just limping on 1 rotor, but it didnt sound blown.

Hope you get it figured out.

cavemancan
02-25-2008, 09:54 AM
Yea, I always told you I had plans to go FI on this car. I already bought my INT-X and Im waiting to get my finances in line, but shortly Ill begin the build on my mid-mount with Vlad.

Let me know when you move down here and we'll meet up. Been quite a while since we've last chilled. By that point I may have the turbo in the car, we'll see.

Vlad, if you cant get your car started in the near future and need a test mule for the proto-type, you know who to call ;)

We should be moving in around March 6th or so. PM me your phone number cause we might be throwing a welcome to our new appartment BBQ.

Back on topic...

Vlad, how's it going with the car. I hope all is well!:eyetwitch

rotorocks
02-25-2008, 10:17 AM
We should be moving in around March 6th or so. PM me your phone number cause we might be throwing a welcome to our new appartment BBQ.

Back on topic...

Vlad, how's it going with the car. I hope all is well!:eyetwitch

I haven't yet done anything with the car.
This weekend was spent on cleaning out the garage entirely. Devin has seen the horrible mess I had in there. Now it is clean, organized and pleasant to work in again.
As far as the issue is, there is a loss of compression on one side of the rear rotor, I have been able to confirm it when changing plugs. One side just sounds differently when turned over. Kinda like Pshh-Pshh-Psss... However like I said, there wasn't any detonation when I run the car, no pings, nothing...

It stopped running while I was at the intersection while in idles.

The engine turns over very well. No unexpected sounds, scraping, or scratching noises whatsoever. Everything sounds clean, which gives me and impression that the seals are intact, but the loss of compression may be associated with the excessive carbon build up under the side seals, which caused them to get stuck in the groove.
Now that i think of it, the sparks on that rotor were covered with carbon big time.

From CRH's suggestion I will get some Sea Foam, and try to use it to clean dissolve the carbon some time this week. See how that works...

What is the procedure there with the Sea Foam?

Start the engine,
Spray the stuff in the running engine through the vacuum ports until it starts showing signs of choking.
Shut off the engine
Let it sit for a half an hour
Start the engine again and run it until everything has burned out of it, no smoke comes out.

Am I correct?

anewconvert
02-29-2008, 12:52 AM
If you go with the fluid version (ther is a spray or a can of fluid, your choice) then you use a post TB vacuum tube to suck 2/3 of the can into the engine. You will need someone to keep the RPMs up while doing this as the engine will want to stall out on you. You just have to keep adding it in a little at a time. Then with the last third rev the engine up to three grand and dump the tube completely into the remaining liquid. This should suck the rest of the seafoam into the engine and stall it. Let it stall, dont try to save it.


Sit for an hour. Its going to be very difficult to get started. If you can do a de-flood like with the S5 RX7 (stand on the gas pedal) do that or however you RX8 guys prevent the injectors from delivering fuel. The hard part is going to be keeping thengine from flooding, but also getting it to fire off. Turn it over a few times without fuel then let the engine try to start. If it starts you are going to need to give it some gas to keep it running for the first minute or so. There will likely be a lot of very very thick black smoke pouring out of the exhaust. Once you get it running go and beat the piss out of it until it no longer smokes. Be ready for a lot of really dirty looks. :) On pistons engines its a good idea to change your oil at this point, but Im not sure if you really need to do that with a rotary.


BC

SoFL_RX8
03-06-2008, 11:00 PM
Any updates Vlad? Im anxiously awaiting the final diagnosis on the start failure.

I really hope all is well with your engine. Have you been riding the bike everyday? Or did you get a rental car (in other words the wifes truck) :P

Like I said before, if you find yourself without the 8 for a little while and need a test mule for the turbo, you know who to call :)

Good luck with everything, hope things work out alright.

rotorocks
03-07-2008, 12:05 AM
Devin, thee are updates, and I know what the issue is.
So far Iride the bike, and use "Rental" from time to time.
in fact I didn't listen to the weather forecastthis morning and took the bike to work, and ended up driving through a complete soaker on the way there and back.
I miss my car. Funny thing is that I am comparing the turboed RX8 to the bike I have, and the 8 just flat out feels faster. lol

Ok, I guess there is no point trying to make any more guesses, so let this be an official word.
It is what it is. the motor on my car is officially gone. To those who do not know and feel like saying something critical, ot want to make baseless assumptions, here is a little back pedaling:

I have 44K on the motor at this point, 27 of which are boosted.

when the car was at 17K I have installed a nitrous kit on it, and instead of being a blind follower, I experimented to the maximum extend. 75 shot, hot FL weather, chasing corvettes, and M3s and stuff like that...

While with nitrous, the car has experienced a TREMENDOUS detonation once. and a series of smaller but audible pings here and there. To prove all the naysayers who claims that the renny is a weak engine... the motor held it's own.

After, that I pulled the Nitrous Kit and sold it in favor of developing something different.

about 4 months later, I reported my first driving experience of the turboed rx8 with my own remote turbo, installed in place of the muffler.
I drove that setup for over 20 thousands of miles, every day, boosting anywhere from 9 to occasional 16 PSI, and for the last 6 month a constant 12-13 PSI of boost. To those who know me i have an extremely heavy foot, and will never turn down an opportunity to GO at it, so i subjected my car to literally and without any exaggerations EXTREME driving conditions, which 98% of car owners will never even attempt to do. Just as an example, There was an instance where I drove the car at the speed of 158 MPH while at WOT and full boost.
Every chance I had to launch from a stop - It was a dragster like take off. What can I say? I love the car, and I am totally addicted to boost. :)
It is mesmerizing to watch that gauge needle go up as you open the throttle.

I always looked for a way to push the car to the limit. I run it lean, because that way it saved me on gas and made more power on less boost, I run it aggressive on the ignition, because i wanted it to go just a tad faster...

No banger engine would ever be able to withstand this much abuse for so long, and would have probably broke a long time ago, yet tis motor kept ongoing, and going... until one day, 3 weeks ago, or so, it finally let go.

This failure has nothing to do with the tune, not does it have to do with the new turbo. it just died. Gracefully, and quietly, like an old warrior.

It did not ping, it wasn't under boost when that happened. I wasn't on a freeway nor was I even moving.
The car was sitting at the intersection and idling, when suddenly it just stalled, and never came back.

I thought it may have been the coils, the plugs, the wires... but after test on top of a test, there are no improvements. the motor turns over cleanly, and there are no noises that resemble scraping, dinging, or anything else that would indicate internal damage, and presents of debris inside the housings, and yet I run a compression test, using a Pep boys type tester and it in fact did show that on the second rotor, one of the rotor faces does not have as much compression as on the others. :(

I have tried too flush the rotor with the sea-foam, but nothing, so the only logical solution to this would be contact someone who really know what the hell they are doind;, ...

Brettus
03-07-2008, 01:10 AM
bummer man . Get a mazmart rebuilt and you'll be back in business in no time :)

rotorocks
03-07-2008, 08:30 AM
bummer man . Get a mazmart rebuilt and you'll be back in business in no time :)

Yes, thanks man. I expected this to happen one day, and was though not fully, but somewhat prepared for it.
there is only so much abuse an engine can take, and mine took sooooooo much...

I was going to finish the that post yesterday, but got distracted.

Anyway, just to finish the thought:
I had contacted a well known individual who frequent the site and have a level of expertise required to be pull a job of rebuilding a motor, and off course I wasn't turned down and was offered all the help I may need in getting it done in a timely matter.
I will not say who it is yet, as I wasn't given a full go ahead. Just to give everyone a little heads up, in a few days we will be starting a thread, with the entire rebuild process documented, with lots of pictures, and possibly even recorded on video. It will be fun, and a great learning experience.

The coolest part of it all is that the rebuild will be done completely from my garage, with the use of tools that anyone has access to.
So stay tuned.

Brettus
03-07-2008, 01:08 PM
Didn't think CRH would have time for that these days ? heh

HiTMaNN
03-07-2008, 01:12 PM
That are sucks BUT get a new engine and you got yourself another 50k of Boost :)

SoFL_RX8
03-07-2008, 02:19 PM
Soooo, you're gunna let me hang onto the turbo in the meantime, right Vlad... :D

J/K, let me know when the rebuild is taking place, Id love to drive back up and see the Renny getting taken apart.

Sorry to hear its blown man, I really thought when we pull started it that it was something minor.

rotorocks
03-07-2008, 02:32 PM
Soooo, you're gunna let me hang onto the turbo in the meantime, right Vlad... :D

J/K, let me know when the rebuild is taking place, Id love to drive back up and see the Renny getting taken apart.

Sorry to hear its blown man, I really thought when we pull started it that it was something minor.

Devin,
If it was a couple of hour swap, I'd let you drive with the turbo for the time being, just so that you get to feel it, and put out a good word. But it is a whole day's worth of work to completely take it off my car and mount it onto yours. (if not longer)
Remember it is not just the manifold and the downpipe. It is the intercooler, the oil pump, the wiring the plumbuing, the oil lines, the gauges... There is a lot more to do than meets the eye.
Unless you want to buy the darn thing off my hands outright, off course, and then I'll just make me a new one...
Believe it or not, for me personally making a kit is easier than taking it off or installing it on the car. :)

SoFL_RX8
03-11-2008, 12:03 AM
Damn man, if I had the finances at the moment I would... but things are tight as you know for the time being.

Let me know when Charles is in town doing the rebuild, Id love to see him tear you engine down.

rotorocks
03-11-2008, 07:55 AM
Let me know when Charles is in town doing the rebuild, Id love to see him tear you engine down.

Here is the thread: http://www.rx8club.com/showthread.php?t=140100

nelsonrx8
03-12-2008, 11:28 AM
how much for your used kit rocks

rotorocks
03-12-2008, 11:31 AM
It is not used :) it is only 2 days old LOL, it was steam cleaned (while I drove through rain) and haven't even had a chance to get all dirty.

nelsonrx8
03-12-2008, 11:35 AM
just trying to get a low price....the word !!!used!!! helps


so how much

rotorocks
03-12-2008, 11:49 AM
I wasn't really trying to sell this one. I was just kidding with Devin. It is still work in progress. I don't feel like doing it all from scratch for myself again, and having no FI while I am at it.
PM me, and I'll give you the price on the Beta testing that I am running right now. Maybe you'll be happier with that price?

Razz1
03-12-2008, 09:53 PM
And now for the re-build.

rotorocks
03-12-2008, 11:07 PM
And now for the re-build.

That's for me to know...
sorry razz. It is by far a less expensive than getting a new motor, though.

rotorocks
03-13-2008, 08:08 AM
Pulled turbo off yesterday (getting ready for the motor rebuild) and examined the pipes. I think my welding has improved quite a bit from when I started it. :)

Keeping in mind, this is a $120 flux wire welder I bought on ebay. :lol: there is not argon bottle or any other shielding gas to help... I want to get one of the better welders sometime later, though.

http://www.rx8club.com/attachment.php?attachmentid=116998&stc=1&d=1205413359

http://www.rx8club.com/attachment.php?attachmentid=116999&stc=1&d=1205413359

Spinning Sushi
03-13-2008, 08:14 AM
That looks like a Pepboys filter you're running there. :)

rotorocks
03-13-2008, 11:13 AM
Autozone, but they all sell the same brand.
I like their filters.

rotorocks
03-13-2008, 10:25 PM
Since the turbo is off, i figured I'll do some work on it.
so as mentioned earlier, I cut off about an inch off the outlet, and attached a 90 extention. Came out pretty well.
By the way, while welding aluminum is a nice to have, a bunch of brasing rords and a torch will get you going in the right direction just as good. :)

http://lh6.google.com/vdarevsk/R9nxA5lZumI/AAAAAAAACks/av4F9ovDUh4/Blog%20029.jpg?imgmax=576

http://lh4.google.com/vdarevsk/R9nxGZlZunI/AAAAAAAACk0/hbSwhdwqmNg/Blog%20031.jpg?imgmax=576

http://lh3.google.com/vdarevsk/R9nxMJlZuoI/AAAAAAAACk8/C3_HUA_Clsc/Blog%20030.jpg?imgmax=576

You can see how well the brase has penetrated. It went all the way through and hugged the metal on the inside.
http://lh3.google.com/vdarevsk/R9nxRJlZupI/AAAAAAAAClE/ogudhkZ3n78/Blog%20033.jpg?imgmax=576

All with the help of a simmple Benzomatic torch
http://lh6.google.com/vdarevsk/R9nxW5lZuqI/AAAAAAAAClM/AG0Vmm3CCiM/Blog%20028.jpg?imgmax=576

A pic of the compresor wheel.
http://lh3.google.com/vdarevsk/R9nxhJlZusI/AAAAAAAAClc/178oiJmQoNQ/Blog%20032.jpg?imgmax=576

chickenwafer
03-13-2008, 10:46 PM
That looks like a Pepboys filter you're running there. :)

It's a Spectre filter. I run the same, works fine, and it's washable.

Charles R. Hill
03-14-2008, 12:30 AM
MM will be jealous of your welds, Vlad. And he uses an actual welder!:lol2:

BTW, you weren't welding near as much as you were "soldering".

rotorocks
03-14-2008, 08:59 AM
Well, no the manifold is welded, the turbo outlet isn't. :) I'll see you in a few, and you can check for yourself. :)

chickenwafer
03-14-2008, 12:05 PM
Remember, Vlad, you're going to pull the engine with your bare hands!

Lift with your knees, that's the key. If you get the engine down to just the LIM and the keg, it only weights around 220-lbs.

rotorocks
04-01-2008, 02:59 PM
Ok, I guess it is time to update this here.
The motor is back and running well. i am still taking it easy with boost as I only put a couple of hundred miles on the motor, so bare with me.
The system however works great, and running now with the waistgate set at 6PSI and virtually no ignition advance. The flow rate of the compressor is so high, that even at this conservative settings, the car feels very fast.

Here is an "inherent" of the new system "feature" which I am looking to tune out presently:

1. APV opening at 6200RPM.
It is a scary Mofo... It requires quite a bit of tuning to get this to feel OEM like. I really do not like this massive push the car gets when it opens opens.
I mean the transition is really strong and noticeable to the point of almost scary.
I assume that I never had felt this before, because eth old turbo simply couldn't flow enough air to compensate for sudden increase of the intake flow rate, so it just dropped boost. this turbo drops nothing. It drops you back into the sit.

I am blabbering about this for one reason. I don't want that. I want the transition to feel as smooth as possible, and the power delivery to be as progressive as it can be.

The thought behind this, is: if this is to be used for a really high power applications, at the extreme loads the motor and all the components are going to operate, I really do not want any additional and sudden jerks, and yanks on the power train, suspension and so on...

2, I do not look forward to loosing traction in the middle of hard acceleration at high speed. It is plain dangerous.

3. I like the car to be OEM smooth, and the power delivery to be unobtrusive and unnoticeable. (yeah right, unnoticeable :lol2: )

So with all that said: I am off and back to tuning.

staticlag
04-01-2008, 04:26 PM
:lol: I have the same turbo, and I can tell you that the transition is insane!!!

rotorocks
04-07-2008, 09:39 PM
Installed the new BOV yesterday.
again Used the brasing torch to attach the flange to the aluminum pipe. Works really well.

The thing with this bov, is that it stays open and pulls unfiltered air inside when the car idles. Need to pull some sort of a filtration cloth/sock over it.


http://lh5.google.com/vdarevsk/R_rSmj_YpJI/AAAAAAAACuI/axo_NJvC2qw/all_large%20003.jpg?imgmax=800

http://lh3.google.com/vdarevsk/R_rSsD_YpKI/AAAAAAAACuQ/AcL8nReOLIQ/all_large%20001.jpg?imgmax=800

http://lh5.google.com/vdarevsk/R_rSxj_YpLI/AAAAAAAACuY/xirK2Ee01tE/all_large%20002.jpg?imgmax=800

nmarz77
04-08-2008, 10:15 AM
Looking good! Man....it looks all humid and sticky there....I remember working in that crap.....yuck!

rotorocks
04-08-2008, 10:32 AM
Yeah, it rained like hell all sunday, and through the night.

Brettus
04-08-2008, 02:56 PM
if you had the AP you would be able to open the APV sooner wouldn't you ?

rotorocks
04-08-2008, 03:35 PM
Possibly, but i don not have AP and My Intake is located way below...
Actually, as I am tunning it out more, it is not that bad, that thransition. You get used to it and it is somewhat fun. Just when they feel like you are done, suddenly boom... See ya!! :lol2:

AZ-Rotary
04-11-2008, 04:48 PM
okay, stone me to death with rocks if i didnt notice this but im only on 2 hours on sleep and 2 redbulls so... cut me some slack por favor. Anyways whats the price looking to be on this beast?

my choices are get a stock used 8 or get a already boosted used 8. And i'd rather choose all the upgrades myself.

Basicly i'd be shooting for highest HP possible, out of this kit with upgraded injectors and fuel pump aswell as it being mildly tuned for a daily driver.

But a beast at the strip or drifting.

Eric.

rotorocks
04-11-2008, 08:03 PM
okay, stone me to death with rocks if i didnt notice this but im only on 2 hours on sleep and 2 redbulls so... cut me some slack por favor. Anyways whats the price looking to be on this beast?

my choices are get a stock used 8 or get a already boosted used 8. And I'd rather choose all the upgrades myself.

Basicly i'd be shooting for highest HP possible, out of this kit with upgraded injectors and fuel pump aswell as it being mildly tuned for a daily driver.

But a beast at the strip or drifting.

Eric.

Thanks for your interest Eric.
PM me with what you are looking to accomplish, and I'll get back to you with the quote, or if you just want it a basic setup of it... I am flexible in terms of trying to meet the goal of your setup, and the means of accomplishing it. :)


Some updates:
I kept on trying to tune the after-APV area and just kept on getting unpredictable results. It would lean out, it would go too rich, this that. I was really getting frustrated, and then decided to log the freaking thing. so I setup the log put it in 2nd gear (cant do 3rd on the streets, too fast) press the "start log" button and let her rip. off course at around 7K i got into some mad bogging and 9AF, then it punches through and suddenly hits 13 (thank god my timing is 0) and I am keeping an eye on my boost gauge and it is showing 10 psi. So I am like WTF? this is annoying.
Then I stopped and looked at the log. And I was like HOLY SHIT!!!
My auto-meter gauge is soooo full of shit! based on the Int-X log, at 8000 RPM i was at 14 psi. No wonder the damn thing wasn't tuning. I was adjusting the 10PSI area. :banghead:

But get this: 2nd gear 14 PSI at 8K!!! And that is because I set it there with the boost controller (thinking that it is actually 10 psi)
This turbo is a monster. :lol: There is no telling how much air this thing will be able to pump if I turned up the boost :) ..well there is, but I am just being excited :Eyecrazy:

ok... ok back to work everyone, back to work :yelrotflm

SIKROTOR7
04-11-2008, 08:47 PM
damn rocks glad to hear u got ur car running again :jump:

kristopher_d
04-14-2008, 05:58 PM
These are the bits I'm interested.
http://www.rx8club.com/attachment.php?attachmentid=118946&stc=1&d=1208213799

Or, more precisely plans/measurements for them/their jigs.

Good work so far.

staticlag
04-15-2008, 02:14 PM
Which autometer gauge are you using? I haven't had a problem with the mechanical ultralite

rotorocks
04-15-2008, 02:34 PM
Gauge looks like the one you got :)
I got it at the autozone.

It looks like the guge is accurate but it is not reacting fast enough to the boost fluctuations in the manivold, as the waistgate reaches it's threshold. So it kinda shows the average between the high and the low.

I'll explain:
Your waistgate is already configued and preset by Chris, I guess.
It runs 10PSI off the spring. and that's it.
Mine was as it came from the box with 2 really hard springs installed and 2 more additional on the side)
Right out of the box it was set soo hard, i couldn't even push the valve in with both of my thumbs. :)

I am tuning the WG now. Got it not to go over 10 psi, but now I need to configure how wide it opens.

It looks like the valve opens too much and because of it the boost is dropped instantly.
The log in chart of the boost curve looks like a smooth line coming up from the start of the pull, but as soon as it hits 10PSI it begins to zig zag up and down from like 10 to 6 psi and back up to 10 for the remainder of the pull.
Hopefully by limiting how wide the walve can swing open, I can limit the amount of pressure drop in the manifold, so eventually it will be able to maintain the set boost rather than dropping it and then trying to regain it.

Mad_kidd
04-16-2008, 07:43 PM
hey if you still making this kits in a year or so, you might have two customers...roughly how much are you looking to sell these kits for?

SoFL_RX8
04-26-2008, 12:23 PM
Vlad my friend... we're gunna be talking very soon about my car. Im almost ready to begin building.

rotorocks
04-27-2008, 08:25 PM
Update:

I am driving with this T70, and although it works, and holds boost and all, I am really not liking it. it is just too slow, and heavy to come alive.
Yes, it will boost fast when I am in over 4K rpm, but below that the thing is such a drag... :banghead:
Most of the time I feel like I drive a stock car.
Bottom line, T70 is going away in favour of something a bit more peppy. Having gotten used to the fast spooling T3/T04E I had earlier I just can't make myself get used to the heavy t70.

So to feed my need for speed here is what I came up with:

I had 2 turbos laying around:
One is my old T3/T04E with .63 AR hot and .51AR cold side.
Another is a brand new T04B with 1.15AR Hot and .60AR cold.

what is did is this:

Took both of them apart and reassembled into one using turbine wheel and housing from the old T3, brand new bearing assembly from the T4, and compressor wheel and the housing from the T4 which basically made it into an equivalent of what is going to be a fast spooling T3/T04b with .63AR turbo and a very potent .60AR compressor.

Next week I will stick it on my mid mount manifold in place of the t70.
I will remove the big waistgate (though it looks impressive, it is a total overkill in this case) in favour of the internal waistgate that I had on the car before. It worked great so why change it?

Pics of the rebuilt turbocharger:

Old turbo being disassembled
http://lh4.ggpht.com/vdarevsk/SBUfQdR5bBI/AAAAAAAACzk/zV3HW23G-Uc/rebuilt_turbo%20014.jpg?imgmax=800

Compressor wheel is off
http://lh3.ggpht.com/vdarevsk/SBUfXNR5bCI/AAAAAAAACw8/TWvCoK0cZrw/rebuilt_turbo%20001.jpg?imgmax=800

T3 .63AR turbine housing
http://lh4.ggpht.com/vdarevsk/SBUfcdR5bDI/AAAAAAAACxE/XspCC9Q0OH8/rebuilt_turbo%20003.jpg?imgmax=800

another shot of the housing
http://lh6.ggpht.com/vdarevsk/SBUfi9R5bEI/AAAAAAAACxM/-WuZcTdfXOA/rebuilt_turbo%20010.jpg?imgmax=800

Having a remote installed turbo does have it's benefits.
Interesting that after over 20K miles the bearings are in perfect condition
there was practically no shaft play at all, there was no carbon found in the bearings either.
http://lh5.ggpht.com/vdarevsk/SBUfptR5bFI/AAAAAAAACxU/m7P-jDKoUj0/rebuilt_turbo%20018.jpg?imgmax=800

This is the where I found the issue: The oil seal on the hot side.
i wrote in my first tread that i had massive oil leaks in the turbo at the very beginning when i just built it. That oil on the turbine housing caused A LOT of carbon build up, as you can clearly see on this and the next image.
http://lh6.ggpht.com/vdarevsk/SBUfu9R5bGI/AAAAAAAACxc/0dA5RA84vII/rebuilt_turbo%20006.jpg?imgmax=800

http://lh6.ggpht.com/vdarevsk/SBUf19R5bHI/AAAAAAAACxk/QqfknZ6cDjw/rebuilt_turbo%20007.jpg?imgmax=800

now compare it to the new bearing :)
T4 compressor wheel is sitting next to it :)
http://lh4.ggpht.com/vdarevsk/SBUf7dR5bII/AAAAAAAACxs/bXRR6zUqH2U/rebuilt_turbo%20016.jpg?imgmax=800

T4 .60AR compressor housing
http://lh4.ggpht.com/vdarevsk/SBUgAdR5bJI/AAAAAAAACx0/xjXGK8kZqEk/rebuilt_turbo%20009.jpg?imgmax=800

side by side T3 .63AR turbine wheel and a T4 1.15AR turbine wheel.
They don't seem to be that much of a different size wise. Well they are the latter one is off course bigger, but not by whole lot, most of the difference is in the turbine housing. i forgot to take a pic of the 1.15AR one for comparison.
http://lh5.ggpht.com/vdarevsk/SBUgFtR5bKI/AAAAAAAACx8/3dEuauN3bmY/rebuilt_turbo%20002.jpg?imgmax=800

I had to replace the old oil seal ring on the hot side of the T3 shaft, as it was completely busted from the heat, it had lost it's ability to expand, plus there was a lot of carbon in the groove underneath it. I popped the old ring off, cleaned the carbon and replaced it with the ring from the T4 shaft (which is identical).
http://lh6.ggpht.com/vdarevsk/SBUgK9R5bLI/AAAAAAAACyI/CZ48jPwUSNo/rebuilt_turbo%20015.jpg?imgmax=800

New seal
http://lh6.ggpht.com/vdarevsk/SBUgO9R5bMI/AAAAAAAACyQ/RFZZg8QniIg/rebuilt_turbo%20017.jpg?imgmax=800

Here it is, the new turbo
http://lh4.ggpht.com/vdarevsk/SBUgTdR5bNI/AAAAAAAACyY/wHZOUtyBEJA/rebuilt_turbo%20019.jpg?imgmax=800

http://lh6.ggpht.com/vdarevsk/SBUgY9R5bOI/AAAAAAAACyg/vMqsDSMobqA/rebuilt_turbo%20020.jpg?imgmax=800

http://lh3.ggpht.com/vdarevsk/SBUgeNR5bPI/AAAAAAAACyo/XB87rgkcdu4/rebuilt_turbo%20004.jpg?imgmax=800


http://lh4.ggpht.com/vdarevsk/SBUgwdR5bTI/AAAAAAAACzI/NL1-LxXVhZI/rebuilt_turbo%20012.jpg?imgmax=800

http://lh4.ggpht.com/vdarevsk/SBUg1dR5bUI/AAAAAAAACzQ/pJ-6huQEik8/rebuilt_turbo%20013.jpg?imgmax=800

tdiddy
04-27-2008, 08:43 PM
That is almost what I have, Vlad. Mine is a T4 .82 A/R Turbine with a T04E .60 A/R Compressor.

rotorocks
04-27-2008, 09:19 PM
Well eah, but .82 turbo is what makes it a bit slower on the spool up, I think. the T70 I have now is .83 AR hot and .70 AR cold (with a T3 flange).

How's your sool up? do you find it responsive?

T70 is OK, but no way in hell it will give you full boost @ 4000 rpm, or 2-3 psi at 2K. I tried, and it isn't happening.

Also the "new" turbo is about 1/2 the weight of the T70. :)

rotorocks
04-28-2008, 10:13 PM
More Development:

Cut the outlet off the T4 Compressor housing:
http://lh3.ggpht.com/vdarevsk/SBaJx9R5bVI/AAAAAAAAC1Y/rU9JeDclOj4/rebuilt_turbo%20024.jpg?imgmax=512

http://lh4.ggpht.com/vdarevsk/SBaJ3NR5bWI/AAAAAAAAC0g/1hRdDhI2bE0/rebuilt_turbo%20028.jpg?imgmax=576

http://lh3.ggpht.com/vdarevsk/SBaKE9R5bZI/AAAAAAAAC1k/NwEbrSnV23w/rebuilt_turbo%20023.jpg?imgmax=576

Prep the 90 degree extension elbow by cutting off one of the shoulders.
http://lh3.ggpht.com/vdarevsk/SBaJ_9R5bYI/AAAAAAAAC0w/p89kOYv4QfY/rebuilt_turbo%20022.jpg?imgmax=576

Attached to the housing using my favorite brazing torch and rods.
http://lh5.ggpht.com/vdarevsk/SBaKKdR5baI/AAAAAAAAC1s/qr1An2WIfVw/rebuilt_turbo%20027.jpg?imgmax=576

http://lh3.ggpht.com/vdarevsk/SBaKO9R5bbI/AAAAAAAAC1I/nTnb7A65UxQ/rebuilt_turbo%20025.jpg?imgmax=576

http://lh3.ggpht.com/vdarevsk/SBaKT9R5bcI/AAAAAAAAC1Q/7MQ_ARmiPPA/rebuilt_turbo%20026.jpg?imgmax=576

Now to the hot side...
Need to make it fit into the downpipe I have currently, which means
I need to weld a 3" v-band flange onto the turbo outlet (which is 2.5" currently.
but I already know what needs to be done to make that fit, so I'll do that tomorrow.

After that:
Remove the external waistgate, and block the holes in the manifold and dump pipe.
Take out the T70, bolt on the T3/T04B.
Move the oil lines from one to another and (10 min worth of work)
Hook up the turbo and the intake/charge pipes back into the turbocharger.

No biggie. Will be done over the weekend. :)

cmr333
04-28-2008, 11:41 PM
sweet:biggthump

staticlag
04-29-2008, 09:38 AM
Well eah, but .82 turbo is what makes it a bit slower on the spool up, I think. the T70 I have now is .83 AR hot and .70 AR cold (with a T3 flange).

How's your sool up? do you find it responsive?

T70 is OK, but no way in hell it will give you full boost @ 4000 rpm, or 2-3 psi at 2K. I tried, and it isn't happening.

Also the "new" turbo is about 1/2 the weight of the T70. :)

I've found downshifting to cure the problem.

Should be fun to hear your review of the new one though

rotorocks
04-29-2008, 09:55 AM
I've found downshifting to cure the problem.

Should be fun to hear your review of the new one though

Well, I am too lazy to downshift :) I want to step, and go from any RPM.
and because I need to rev like crazy to get thepower going, I noticed that my fuel consumption increased quite a bit compared to what it was before.

I used to get around 220 per tank, now it is more like 190. I do run it richer though, when in boost nowdays. So that can be attributed to the fact...

staticlag
04-29-2008, 11:00 AM
Well, I am too lazy to downshift :) I want to step, and go from any RPM.
and because I need to rev like crazy to get thepower going, I noticed that my fuel consumption increased quite a bit compared to what it was before.

I used to get around 220 per tank, now it is more like 190. I do run it richer though, when in boost nowdays. So that can be attributed to the fact...

Yeah, I get about 180 per tank now, I used to get 240 :(

Yeah I have found that the extra power has made me lazy also, usually I'm in 6th gear at 2-3K rpms and I step on the gas, and LAGGGGGG. All it takes is a quick downshift to 4th or 5th gear to get the juices flowing.

Yeah I made it rich everywhere also. I cruise at 14.7, I have made it fat daddy rich at port opening 6500, richened from 5inHg to 1psi range that was going lean to around 12-13 afr and <11 after 1psi . depending on how cold it is outside I am usually at 10.5 above 50 degrees ambient and normal water temps.

rotorocks
04-29-2008, 12:37 PM
Yeah, I get about 180 per tank now, I used to get 240 :(

Yeah I have found that the extra power has made me lazy also, usually I'm in 6th gear at 2-3K rpms and I step on the gas, and LAGGGGGG. All it takes is a quick downshift to 4th or 5th gear to get the juices flowing.

Yeah I made it rich everywhere also. I cruise at 14.7, I have made it fat daddy rich at port opening 6500, richened from 5inHg to 1psi range that was going lean to around 12-13 afr and <11 after 1psi . depending on how cold it is outside I am usually at 10.5 above 50 degrees ambient and normal water temps.

Yep, "LAGGGGG" is exactly why I am switching to the smaller turbo. :)

kristopher_d
04-30-2008, 10:12 AM
You guys cruise too much. You get better range on a tank of fuel with boost than I get N/A.

staticlag
04-30-2008, 10:18 AM
You guys cruise too much. You get better range on a tank of fuel with boost than I get N/A.

Lol, thats highway mileage.

I get about 90 miles to the tank when I'm playing around.

rotorocks
04-30-2008, 10:42 AM
Yep, I'll burn 1/2 tank in an a half hour or less if I am tuning. and after that look at the milage, and it is like 20-30 miles... :uhh:
Do a 10-12 psi pull at 10.5 AF, you can literally see the needle drop :lol:

cmr333
04-30-2008, 01:42 PM
Sounds Fun To Me

rotorocks
04-30-2008, 03:17 PM
Done modifying the turbine.
Now it has a V-band 3" outlet, instead of 3bolt 2.5" outlet :)

http://www.rx8club.com/attachment.php?attachmentid=119768&stc=1&d=1209586287

http://www.rx8club.com/attachment.php?attachmentid=119769&stc=1&d=1209586550

RXtreme8
05-01-2008, 10:32 PM
This project is very interesting, especially the idea of a mid mount kit.

Keep up the good work RotoRocks!!!!

rotorocks
05-02-2008, 08:29 AM
Thanks, Man. I appreciate the kind word

rotorocks
05-04-2008, 10:43 PM
OK, about 12 hours of work later I took it for a ride.
13 PSI, and Int-X shuts off fuel at 4100 RPM in 2nd gear (not 4rth, or 5th when there is a lot of load)
That is what I am talking about when it comes to spooling. :ylsuper:
I did screwed up though, and put the boost controller hose onto the wrong side of the waistgate actuator. :banghead: It was at the end, of the day today. I was exhausted, and got confused. :(
...Going to have to jack the car up again tomorrow, and get to it.
Oh, and I did move the intake into the engine bay.

You should hear the noise this turbo makes :lol:
I will make a video, because it will be totally worth it.

http://lh5.ggpht.com/vdarevsk/SB51DdR5bmI/AAAAAAAAC44/r1clMExmbtE/rebuilt_turbo%20037.jpg?imgmax=576

http://lh3.ggpht.com/vdarevsk/SB51I9R5bnI/AAAAAAAAC5A/3Uezbf4oV3c/rebuilt_turbo%20038.jpg?imgmax=576

http://lh5.ggpht.com/vdarevsk/SB51OdR5boI/AAAAAAAAC5I/tyGVbZu0v7s/rebuilt_turbo%20039.jpg?imgmax=576

http://lh6.ggpht.com/vdarevsk/SB51YtR5bqI/AAAAAAAAC5Y/1l5ehYhkVJs/rebuilt_turbo%20041.jpg?imgmax=576

http://lh3.ggpht.com/vdarevsk/SB51d9R5brI/AAAAAAAAC5g/Nn9h3_x8S8U/rebuilt_turbo%20042.jpg?imgmax=576

rotorocks
05-05-2008, 09:57 AM
Couldn't allow myself to drive to work with unmanageable boost, so I went ahead and jacked the car early in the morning, and moved actuator hose onto to the correct side.
Instantly fixed the boost spike issue. right now it runs at 8 PSI flawlessly.
And i will raze the boost to 11-12 within the next couple of days.
But let me tell ya... This thing is awesome! It pulls so strong from the very beginning, and no need to even give it a whole lot of throttle to get into boost. Blip that pedal a little and you instantly hear "fffssssssssssss" as the turbo spools up and the car takes off...
I must say that I am very, very impressed with my own car. :Eyecrazy: :lol: :lol:

nmarz77
05-05-2008, 11:51 AM
I must say that I am very, very impressed with my own car. :Eyecrazy: :lol: :lol:

LOL....nice! First laugh of the morning. Can't wait to see the final kit you put into production.:)

romycha1
05-05-2008, 10:23 PM
Thats so awesome, I might have to get one of your beta kits

rotorocks
05-06-2008, 07:39 PM
Ha ha, I am betaing it myself for now :) but if you want, I'll make you one also.

rotorocks
05-07-2008, 09:31 AM
Damn this thing is fun at 14 PSI! :Eyecrazy:

nmarz77
05-07-2008, 11:52 AM
Stop teasing us....

rotorocks
05-07-2008, 12:37 PM
Well ok, no more teasing...
Here is the truth: It is running actually at about 5 psi... :eyetwitch













...@ 2500 rpm :lol: :lol: :lol:

nmarz77
05-07-2008, 12:43 PM
Grrrr....

preludah
05-08-2008, 09:03 AM
any news?

rotorocks
05-08-2008, 09:38 AM
any news?

What news are you looking for? :)

Floyd
05-08-2008, 10:37 AM
What news are you looking for? :)

Vid or it didn't happen :)

rotorocks
05-08-2008, 11:06 AM
It didn't happen. :lol2:

RXtreme8
05-08-2008, 09:06 PM
we still demand vids anyway, so make it happen! :eyetwitch

05rex8
05-08-2008, 11:25 PM
Ha ha, I am betaing it myself for now :) but if you want, I'll make you one also.
for free? deal. pm me for my shipping address. thank you.

rotorocks
05-09-2008, 07:36 AM
for free? deal. pm me for my shipping address. thank you.

You know, when i was like 18 I used to say that for free comes only two things - Water and Pussy. :lol: :lol2:
Now that I am near 34, I find that to be very untrue.
Decent water is bottled, and the other gets wiser with age and required expensive presents :banghead:

So good luck with the freebies search here, brother

:lol2:

05rex8
05-09-2008, 12:45 PM
^yeah so kidding. I'm 26 and I know about the whole free thing. Just playing. GL with the build.

tajabaho1
05-09-2008, 01:04 PM
when the hell is this going to be available? jesus Christ.........I'm dying

rotorocks
05-09-2008, 01:18 PM
Well it is sorta available even now. First come first serve bases.
Now that it has in internal waistgate, it is real easy to make the manifold. So I can make them myself without too much effort.
You want one?

tajabaho1
05-09-2008, 01:21 PM
how much, I want

tajabaho1
05-09-2008, 01:47 PM
this is going to be interesting :)

tiltmode43
05-09-2008, 02:30 PM
Waiitt a darned second, your kit is complete running well? Not enough time to read all 14 pages to I glanced at 1, 13 and 14 and you're finished? If so, get a list of parts/final price and you'll have a long list of buyers in no time!

rotorocks
05-09-2008, 02:42 PM
Oh boy! I had no clue I had such a silent fan base ;)
It is never complete. there is always room for improvement but with that said, and considering the price (which I can not announce on public thread, as I am not a forum vendor) it is quite a fun bang for the buck :)
there is still work to be done, off course, but like I said without rushing too much I can break them off one by one quite nicely for your driving pleasure :)

oh and you are missing all the shiny pics if youre not going through all the pages. this thread has tons of em.

kristopher_d
05-09-2008, 03:38 PM
You do, of course, have tech drawings, right? So you could sell me plans for the custom bits and I can substitute in the generic stuff per my own twisted designs. Not for resale or competition. I'm just picky and have some stuff I want to try while piggy backing on your exploits.

tiltmode43
05-09-2008, 05:56 PM
Oh boy! I had no clue I had such a silent fan base ;)
It is never complete. there is always room for improvement but with that said, and considering the price (which i can not announce on public thread, as I am not a forum vendor) it is quite a fun bang for the buck :)
there is still work to be done, off course, but like I said without rushing too much I can break them off one by one quite nicely for your driving pleasure :)

oh and you are missing all the shiny pics if youre not going through all the pages. this thread has tons of em.

Lets put it this way ~ before I contact anyone inquiring anything I like to do my research. I shall do some research tonight ;)


:lol2:

rotorocks
05-11-2008, 08:17 PM
You do, of course, have tech drawings, right? So you could sell me plans for the custom bits and I can substitute in the generic stuff per my own twisted designs. Not for resale or competition. I'm just picky and have some stuff I want to try while piggy backing on your exploits.

EDIT:
My earlier answer was too complicated, and confused people.

Basically what it meant was that I do not want to sell or give away any tech drawings, blueprints or measurements.
Sorry.

I was laying under the car juggling the turbo and sweating like a pig to get it to fit. It took me time and money. if you like the setup, and feel like you want one, and wanna do it yourself, feel free. There is enough info on what and how it can be done. If you want to DIY this, then do it.
Otherwise, I will gladly take your order.

kristopher_d
05-23-2008, 12:34 PM
Fair enough. You never know if you don't ask.

tajabaho1
05-23-2008, 03:36 PM
if I had the necessary materials and welding ability you bet your ass I will make this :)

rotorocks
05-23-2008, 03:45 PM
I have no doubt in me mind, off course you will.
It is just a pipe with flanges attached, and a bunch of misc bells and whistles.

05rex8
07-05-2008, 08:21 PM
hmm, this thread died...

coastie08
07-29-2008, 08:11 PM
any updates?

05rex8
07-29-2008, 11:09 PM
I'm going to go with a no on this one. Fail.

--Jonathan

devildog1679
07-30-2008, 09:05 AM
It's been a few months since he posted last on this forum. I think the Esmeril guys took him out :)

rotorocks
07-30-2008, 09:57 AM
LOL
no I am alive
nothing to report really.
Just been busy lately and haven't had time to do any work on the car or to post.
Work got busy, I am taking some psychology classes after work. Got a different car for a daily driver and i am in the process of buying a house. So with all this going on I just haven't had any time.

EDIT:
Oh I just realized that I never mentioned this on the forums (I thought i did, but it was from speaking to some folks privately):

Like I said, I got another car now. The reason: dead motor, just over a month ago. This time it is because of a turned shaft bearing.
At this time the car is parked in my driveway, and it will remain there until I get the time and money to get it rebuilt again.

05rex8
07-30-2008, 05:58 PM
what a surprise...

rotorocks
07-30-2008, 11:15 PM
hmm, this thread died...

I'm going to go with a no on this one. Fail.

--Jonathan

what a surprise...

Woah!! Someone just can't get over the little rejection, huh?
tsk, tsk, tsk... :lol2:

Would you feel different if I had agreed to make one for you FREE? :lol2:

05rex8
07-30-2008, 11:18 PM
lol, joking man--all of it

rotorocks
07-30-2008, 11:33 PM
Hey, it was expected to fail at some point. so it did.
I would love to tear that motor and see what happened for sure, and I will.
Next stage will be making it into something along the lines of a track car. Still haven't decided exactly what, though. I no longer need it as a DD, so I can really take the time, design it well, and go wild with it. A couple of years maybe... ?

For now I got me an A4 2.0T Audi :)
It gets 31 mpg and it is boosted too. Except the turbo is just about the size of my fist :), but the cost of lease and the gas (monthly) turns out to be less than what I had paid on the 8 for the gas only, which in itself is pretty amazing.

devildog1679
07-31-2008, 09:14 AM
Hey, it was expected to fail at some point. so it did.
I would love to tear that motor and see what happened for sure, and I will.
Next stage will be making it into something along the lines of a track car. Still haven't decided exactly what, though. I no longer need it as a DD, so I can really take the time, design it well, and go wild with it. A couple of years maybe... ?

For now I got me an A4 2.0T Audi :)
It gets 31 mpg and it is boosted too. Except the turbo is just about the size of my fist :), but the cost of lease and the gas (monthly) turns out to be less than what I had paid on the 8 for the gas only, which in itself is pretty amazing.

Just baught my wife a 2.0T Quattro, she get's 30 MPG on avg. and 35 mpg when we take long trips. When she isn't in the car I get on it and am impressed by it's handling and power.

tajabaho1
07-31-2008, 05:01 PM
your motor die?

nice, welcome to the club

rotorocks
08-01-2008, 05:59 AM
your motor die?

nice, welcome to the club

Whose club, Taja? :)

Brettus
08-01-2008, 12:11 PM
your motor die?

nice, welcome to the club

no - your club is exclusive Taj ....

rotorocks
08-01-2008, 12:36 PM
The hell it is!!!
You and everyone else are always welcome.
Taja is not antisocial :lol: :lol2:

andrewjuguete
08-06-2008, 06:24 AM
this remote mounted FI setup you've got is really awesome.
great work rotorocks!!!!

helldmgd
05-28-2009, 09:20 AM
subscribing to get better ideas. 2 thumbs up for the use of stock header IMO. Race header any better u thinks? not for the kit, but for better spool times on that monster of a turbine?

chickenwafer
05-28-2009, 04:18 PM
holy thread bump

what ever happened to Vlad?

rotorocks
06-03-2009, 04:59 PM
holy thread bump

what ever happened to Vlad?

LOL Dave,
I'm still alive and checking messages from time to time. :yesnod:
Been busy with all sorts of things unrelated to the car, while the 8 is just sitting in the garage for now.

chickenwafer
06-03-2009, 10:25 PM
So you don't have anymore updates to your new remote turbo?? Sad

rx8 man
09-12-2011, 03:27 AM
I would like to Thank Rotorocks for his posts and the pics that were up on this site, as These give me a vision to work on. --- Thank You :)