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Old 11-22-2005, 08:01 AM   #1
riggs
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Default 06 WRX, how much boost can be run on pump gas?

Hey Guys,

I am brand new to the Subaru's, and look forward to building our new project car.....www.undergroundmotorsports.com

How much boost can I run on the stock turbo? What does the Cobb AP Stage II setup run boost wise?

I have just ordered a Megan exhaust/downpipe setup and need to get the car tuned next week....

ECUtek or Cobb? Could anybody guide me on the major differences...

Sorry for all the questions, but I would rather buy the right parts the first time.
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Old 11-22-2005, 08:18 AM   #2
Davenow
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17PSI is about the highest I would go on straight pump. AP stage 2 is 17ish psi.

ECUtek and ap are the same thing. Just reflashes. The ap can be removed by you. With either if you decide you want a mod that should be tuned for, you are screwed and end up paying for custom dyno work (which isnt necessarilly a bad thing) but with the AP you can buy the street tuner software and do it yourself IF you really know what you are doing (the street tuner is very comprehensive, and as such is very complicated). As far as the base maps that the non custom tuned reflashes come with, I have seen the best results on Vishnu ecuteks consistantly.
Or go UTEC, which is powerful enough for 99.5% of the people out there, no less safe, and much easier to learn to tune yourself. Although, again, custom dyno work isnt a bad idea if you dont really know what you are doing.

That about as clear as mud?
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Old 11-22-2005, 08:22 AM   #3
riggs
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Appreciate the reply....

Also, why do people tend to keep the factory intake system?

Coming from a Toyota Supra/ RB26DETT 240SX background, that would have been one of the first mods I did...
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Old 11-22-2005, 08:38 AM   #4
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http://forums.nasioc.com/forums/show...hreadid=533787

This link will bring you up to speed. Thank God you have an open minded attitude as what works for XXX might not work for a Subaru. Happy modding!
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Old 11-22-2005, 09:01 AM   #5
riggs
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I'm leaning towards the Cobb AP and will probably just buy the Street Tuner software and tune it myself...

Last edited by riggs; 11-22-2005 at 09:12 AM.
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Old 11-22-2005, 11:38 AM   #6
tortuga
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I have just completed my Stage 2 install and I am very pleased with the results. I haven't had a chance to log any data but from what I can tell, the car pulls a lot more in the lower RPMs.
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Old 11-22-2005, 06:27 PM   #7
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Quote:
Originally Posted by riggs
I'm leaning towards the Cobb AP and will probably just buy the Street Tuner software and tune it myself...
^^^^^^
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Old 11-22-2005, 10:34 PM   #8
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Quote:
Originally Posted by riggs
Appreciate the reply....

Also, why do people tend to keep the factory intake system?

Coming from a Toyota Supra/ RB26DETT 240SX background, that would have been one of the first mods I did...

Basically because the factory intake flows enough to not be any real kind of restriction. Combine that with a VERY finiky MAF sensor, and you end up with a car that stand a good chance or gaining nothing, or losing power from an intake.

Although STIs respond pretty well to them
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Old 11-22-2005, 11:08 PM   #9
riggs
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Quote:
Originally Posted by Davenow
Basically because the factory intake flows enough to not be any real kind of restriction. Combine that with a VERY finiky MAF sensor, and you end up with a car that stand a good chance or gaining nothing, or losing power from an intake.

Although STIs respond pretty well to them
Ive been told this was a problem with the 02-03's only...

There have been very cars that I've seen that performed worse after changing to aftermarket air filters....
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Old 11-23-2005, 08:31 AM   #10
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Quote:
Originally Posted by riggs
Ive been told this was a problem with the 02-03's only...

There have been very cars that I've seen that performed worse after changing to aftermarket air filters....
In lots of the bolt on cars we've dynoed, I've rarely if ever seen an intake make power on Subies/Evos. More often than not, they lose power.
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