407whp / 406wtq STI dynoing a liiiittle too rich s


 
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wisturbosrt  (February 01, 2007)
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Jun 06, 2006
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I'm a fan of the subaru sound and performance, however if you have the money to put into your car you really should buy a good video recorder to showcase it. Otherwise people who watch your video aren't gonna realize how good it is. Great Fireball:)

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277959  (December 27, 2006)
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Oct 12, 2006

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^No, the .63 a/r housing is designed for a 2L, on the 2.5L the .63 a/r gets choked off REALLY bad and you have backpressure issues, the ~200rpm you l ose in spool is worth the extra ~50whp you gain in the top-end.. Trust me, i've been around this for along time.. Just do some reading on Nasioc.com and do some research on the matter if you care, the .63 is too small for the 2.5L when you start running 24+psi..

The problem is the MAF pl acemanet on the perrin kit, it's right in front of the turbo inlet, and wh en you let off and the throttle plate closes, the turbo is still spin ning fast and still drawing more air past the MAF, then the ECU thinks it nee ds more fuel whe it doesnt, and ends up flooding it and the car stalls out .. You need to either run MAP and get rid of the MAF altogether with the n ew Utec software, or you need to get a hydra and do the same thing, or the cheap fix is to put 2 90* elbows and have the MAF and filter curve up tow ards the pass. side strut tower, there are pics on nasioc of people doing this becasue of this very reason and it works great, no more stalling or r ough idle.. It only happens with some cars though..

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ScoobaruKid  (December 17, 2006)
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dude your porblem is that .82 A/R...why not go with the .63 for a smoother ride?

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277959  (December 09, 2006)
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How do you like the MAf/intake on the Perrin 30R/35R kits?? I run the 30R.8 2 kit on my car, and i have a stalling issue when clutching in above 2.5K rpm.. It only happens sometimes, but enough to bother me.. My plan was to just get a Utec on top of my ecutek, run speed density, and just get a 4in ch intake.. BTW i put doen 392whp @ 22psi on 91 pump gas.. I had him tune it very conservatively though since it was running 22 psi on pump..
What type of power are you making?? Race gas tuen yet??

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From: a8d5492f
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Views: 17,148Added:December 03, 2006
407whp / 406wtq STI dynoing a liiiittle too rich still - Huge fireball result. Sorry about the audio - taken with a camera phone :(
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