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Turbo project...

Old 05-23-2010, 06:01 PM
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Turbo project...

I keep telling myself that Roxy is more of a "grown-up" car than my Evo...but I still wanna mod the **** out of it. I miss the feeling in my butt-dyno when I reflashed my ECU and turned up the boost on track days. I miss the whine of the turbo and the <pssht> of the blow-off valve...

So I begin my journey towards snailing. I've got mild experience with turbocharging a naturally aspirated car, and ALOT of experience tuning turbo cars.

This will serve as my compilation/notes station. I'll chart the journey from start to finish here, and by the time it's done, I hope to have a daily driven 300 hp on a steady curve (as steady as a turbo will allow). I would definately appreciate any advice and help that anyone wants to give.

Phase 1: Research
Phase 2: Compilation of Parts/Accessories
Phase 3: Installation
Phase 4: Testing/Tuning
Phase 5: Zoom-Zoom
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Old 05-23-2010, 06:05 PM
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Phase 1: Research

I'll start with this: How Rotary Engines Work

Can anyone offer advice on the best Series I turbo builds?

Hopefully by the end of Phase 1 someone will have come up with a tuning solution...if not this will take a lot longer.
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Old 05-23-2010, 06:14 PM
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All the answers are here on the forum . Have a read up and then ask specific questions and i'm sure you will get all the help you need ...
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Old 05-23-2010, 06:17 PM
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Wait are you turboing a Series 1 rx8??

You siggy says 09 White GT, do you have a series 1 and series 2 rx8?
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Old 05-23-2010, 06:52 PM
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Yeah - if it's a series 2 you may be **** out of luck ....
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Old 05-23-2010, 07:08 PM
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Originally Posted by HomicidalApple View Post
Wait are you turboing a Series 1 rx8??

Your siggy says 09 White GT, do you have a series 1 and series 2 rx8?
Nah, just a series II. I want to reference the Series I's because it's the most similar creature.

Originally Posted by Brettus View Post
Yeah - if it's a series 2 you may be **** out of luck ....
I'm hoping that by the end of my research phase that the ECU tuning problem will be solved...

This isn't going to be a quick process...I'm gonna take my time, work with a few different mounting options, etc... Research includes measurements.
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Old 05-23-2010, 07:12 PM
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I used the Powermod from Aus on my turbo for a while and it worked well (although not as good as flash tuning) . I recently asked the guy who developed it for info on S2s so will let you know if he comes back with anything ....
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Old 05-23-2010, 07:33 PM
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Originally Posted by Brettus View Post
I used the Powermod from Aus on my turbo for a while and it worked well (although not as good as flash tuning) . I recently asked the guy who developed it for info on S2s so will let you know if he comes back with anything ....
AWESOME, thanks, bro! That'll definately be a breakthrough, because it'll make other companies want to get in that game...hopefully.
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Old 05-29-2010, 01:23 AM
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Old 05-29-2010, 12:29 PM
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Originally Posted by BigTurbo74 View Post
Yeah, I saw a link in another post about these guys. I don't know much about them, but I'll look into it. Thanks, bro.
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Old 05-29-2010, 02:47 PM
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Have some info back on the Powermod . The guy has not tested on a S2 but is willing to help if we want to try fit one .
I know where you could get one 2nd hand at a good price if you want to give it a go ....
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Old 05-29-2010, 07:48 PM
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Originally Posted by Brettus View Post
Have some info back on the Powermod . The guy has not tested on a S2 but is willing to help if we want to try fit one .
I know where you could get one 2nd hand at a good price if you want to give it a go ....
I'm sure it wouldn't be too hard...I mean even if the ECU software is fully protected, having an "Interceptor type system" would be the best way to go about reliability and "legality" on the street/track...

...but I'm not sure I'd be willing to let my daily driver be the guinea-pig for a new system... I mean, until the kinks are worked out, I'd be hitching a ride to work/class everyday, haha.

Why can't everyone just be as cool as Mitsubishi and Subaru and just keep their ECUs open for tuning? I mean, it's not like Mazda's responsible for something messing up...and they'd get more service business from people who DID **** something up, haha...
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Old 06-03-2010, 11:30 PM
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I am in the same phase you are. I have been reading up and have sent about 10 emails to various vendors looking for a tuning option. Tagging along and I'll post any info that I can find on the subject.
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Old 06-03-2010, 11:46 PM
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Originally Posted by Benz05ZZ View Post

Why can't everyone just be as cool as Mitsubishi and Subaru and just keep their ECUs open for tuning? I mean, it's not like Mazda's responsible for something messing up...and they'd get more service business from people who DID **** something up, haha...
dont understand what you mean by "keep their ECU open for tuning". With a COBB AP you can tune the ECU till your heart's content...
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Old 06-04-2010, 01:06 AM
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Originally Posted by laythor View Post
dont understand what you mean by "keep their ECU open for tuning". With a COBB AP you can tune the ECU till your heart's content...
For the Series II?????

Last time I spoke with them, they didn't have a unit for the Series II.
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Old 06-04-2010, 08:44 PM
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ahhhh.. missed the series II header... my bad. Yeah, COBB doesnt see the potential for designing an AP for the II.. a shame really.
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Old 06-04-2010, 10:03 PM
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The guys over at Turblown seem to have a turbo / custom ecu solution but it isn't cheap. I don't know anything about it at this point.
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Old 06-06-2010, 08:16 PM
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Originally Posted by laythor View Post
dont understand what you mean by "keep their ECU open for tuning". With a COBB AP you can tune the ECU till your heart's content...
Not for Series II's. Also, a Cobb AccessPort for an RX-8 costs like 200 used...with a free program called ECUFlash you can tune your ECU with a netbook, laptop, or PC (only on Mitsu/Subarus). Altering EVERYTHING to your heart's content... E.G.: Idle (w/ and w/o AC), Intercooler Sprayer, etc...
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Old 06-15-2010, 10:39 PM
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Alright, guys I've been reading over a whole bunch of info on Rotaries, N/A -> Turbo conversions (again...), and Engine Management...

I'm going nowhere with this build until there's a reliable, non-self correcting way to tune this engine...

Brettus, you got any more info on PowerMod?
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Old 06-15-2010, 11:44 PM
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Originally Posted by Benz05ZZ View Post
Alright, guys I've been reading over a whole bunch of info on Rotaries, N/A -> Turbo conversions (again...), and Engine Management...

I'm going nowhere with this build until there's a reliable, non-self correcting way to tune this engine...

Brettus, you got any more info on PowerMod?
Unless you want to go with a custom ECU, we are stuck.
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Old 07-03-2010, 07:04 PM
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wanna see how this turns out. good luck bro
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Old 07-03-2010, 09:17 PM
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Originally Posted by Benz05ZZ View Post

Brettus, you got any more info on PowerMod?
Nope . It would take someone with a few clues to figure it all out but i would be reasonably confident that it would do the same job as it did on the series 1 once you get all the connections sussed . Injector sizing could be an issue though ....

http://www.dnamotorsport.com/PowerMod/PowerMod.html
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Old 07-07-2010, 12:40 AM
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Currently all you can do is go full standalone; ie haltech, motec, etc...

We were the first shop in all of North America to run the Motec M2r outside of motec usa; it is a good route, just kinda spendy for a street car..
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Old 07-08-2010, 02:42 AM
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I'm thinking about scrapping this project. I've reached my wits end waiting on someone to release something worthwhile, and after some thought, realized this:

- Mods would create a lot of downtime.
- Still under Factory warranty, mods would void it.
- Looks great as she is, and is powerful and handles extremely well for a street car

I'm thinking she's gonna be my street/show car. Looking into an M'z Custom kit and R3 Skirts and some new wheels with a drop. Intake/Exhaust will be the extent of her power mods.

But don't give up on me yet! I'm also looking at this, or something like it...
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Old 07-22-2010, 11:30 PM
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What a Wimp.......
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