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2004 Subaru wrx STi

This is a discussion on "2004 Subaru wrx STi" within the Install Pics forums. This forum, and the thread "2004 Subaru wrx STi "are both part of the Videos & Pictures category;

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Old 07-09-2007   #1 (permalink)
Water Injection Newb
Year: 2004
Make: Subaru
Model: Impreza
 
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Posts: 7
Default 2004 Subaru wrx STi

Here is a link to my installation.

NASIOC - View Single Post - the ADI journey begins...

Its not done, but it works. I've got to build a cover for the trunk mounted parts.

I've also got a leak at the pressurized point of the pump. I'm not sure why yet.
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Old 07-09-2007   #2 (permalink)
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Default Re: 2004 Subaru wrx STi

does it not use a conrtoller?
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Old 07-09-2007   #3 (permalink)
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Year: 2004
Make: Subaru
Model: Impreza
 
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Posts: 7
Default Re: 2004 Subaru wrx STi

Quote:
Originally Posted by pacemkr86 View Post
does it not use a conrtoller?
Short answer:...
No, the boost activated switch did a good enough job and was easy to tune for. My turbo naturally tapers boost from peak torque to redline, and water delivery to each cyl per engine rotation at WOT towards redline naturally decreases along with boost. I went from 11:1 AFRs to 12.5:1 afrs on a 50/50 water/meth mix (yellow bottles of Heet at this point)


Long answer:.....

No, to put it nicely, I've not found a controller that does a good enough job considering the price and benefits. Until I get a true 3d mapping controller with decent resolution, a simple boost activated setup is fine for me

Ramping up controllers though do map nicely at times with boost curves, they don't take in account engine RPM. I've got a Turbo XS Utec that can provide a 3d map for an externally driven solenoid, but the resolution of the map is hindered by its 15hz operation. Well, that and I need a HSV of sorts and dont want to spend the money :D I R cheap a ass. I'm waiting for a friend who is going the UTEC route to report back.

That said, the devils own kit was well thought out though I only received female connectors (cant remember which), not a big issue though as the rest of the kit mape up for it. Radio Shack FTMFW. I like the DO kit and philosophy enough that I sport the DO sticker. DO is the only sticker on my car


Ohhh and I have a leak at the pressurized outlet of the pump. I tried not to tighten down all the way and tried to be careful with the brass fitting, but I think I might have stripped something. I've got teflon tape (no paste at home depo) and will give it a shot. If I stripped something, where can I get a replacement pump head?
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Old 07-09-2007   #4 (permalink)
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Year: 2004
Make: Subaru
Model: Impreza
 
Join Date: May 2007
Posts: 7
Default Re: 2004 Subaru wrx STi

No cross threading was seen. The brass fitting doesn't feel tight until the nut is pressed up against the pump head scraping the plastic. I used some teflon tape on the threads so we'll see what happens. Hope the leak is fixed.
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Old 07-10-2007   #5 (permalink)
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Year: 2004
Make: Subaru
Model: Impreza
 
Join Date: May 2007
Posts: 7
Default Re: 2004 Subaru wrx STi

I'm pathetic, constantly replying to my own thread. Leak fixed Now to turn up the boost a bit :D Thinking 23 PSI max.
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Old 07-11-2007   #6 (permalink)
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Default Re: 2004 Subaru wrx STi

Thanks for keeping us up to date. We try to keep thses a cheap as possible.
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