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08-14-2009, 02:17 AM | #1 |
Scooby Newbie
Member#: 196486
Join Date: Dec 2008
Chapter/Region:
South East
Location: Memphis
Vehicle:2004 WRX Blue |
Not hitting target boost 2004 wrx stage 2
My 2004 wrx wont go above 12.8 psi. I have turned the wastegate arms 2 turns shorter. This allowed the boost to come on much faster it seemed but doesnt raise the max psi shown on my ap.
Should I do the 3/16th's mod next? P.s. I've tightened all my hoses and checked for leaks. The only thing I havent tried is the HWG map. HWG is use at your own risk so that kinda makes me do:
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08-14-2009, 05:37 AM | #2 |
Sammo Hung
Moderator Member#: 10613
Join Date: Sep 2001
Chapter/Region:
South East
Location: N Fla / S Ga
Vehicle:2002 USDM WRX WRB |
is you car tuned? or is it stock ecu?
oops saw you have ap.. i would check for the restrictor in vacuum line from turbo compressor to wastegate. Last edited by jaxscuby; 08-14-2009 at 08:22 PM. |
08-14-2009, 11:18 AM | #3 |
Scooby Specialist
Member#: 143149
Join Date: Mar 2007
Chapter/Region:
Tri-State
Location: No evo 9, no sti swap wrx
Vehicle:2006 gmc envoy stealth |
What maps are you using? I take you are using an ots map because you have mentioned target boost. What is your target boost? 16.5?
I would try the HWG, if you try it once and hit a fuel cut then its not for you. Generally speaking hiting a fuel cut once isnt going to blow your car up. It is a saftey feature afterall. You could start testing it out by going slowly with the throttle and watch the AP. Any OTS map has a use at your own risk principle to it. They are designed for the masses and there is always a risk no matter how minute .. Last edited by Dubstar112; 08-14-2009 at 11:27 AM. |
08-15-2009, 12:20 AM | #4 | |
Scooby Newbie
Member#: 196486
Join Date: Dec 2008
Chapter/Region:
South East
Location: Memphis
Vehicle:2004 WRX Blue |
Quote:
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02-19-2013, 10:39 PM | #5 |
Scooby Specialist
Member#: 142405
Join Date: Mar 2007
Chapter/Region:
Tri-State
Location: TeamHazardRally.com
Vehicle:#716 Group5 S10 |
Did you ever figure this out - I can't seem to get about 13psi.
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02-20-2013, 12:35 AM | #6 |
Scooby Newbie
Member#: 292110
Join Date: Aug 2011
Location: Maine
Vehicle:2003 WRX wrb |
I know on my my WRX I went stage 2 and the shop doing the reflash notice i was only running 9psi of boost no matter what. The problem ended up being I was missing the resistor pill on the vacuum line. hope that helps some
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02-20-2013, 10:53 AM | #7 |
Scooby Newbie
Member#: 296753
Join Date: Oct 2011
Location: Engine
Vehicle:2005 V7 JDM STI swap Blue |
@ what gears u guys don't see the boost u want? 1st gear?
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02-20-2013, 10:56 AM | #8 |
Scooby Specialist
Member#: 142405
Join Date: Mar 2007
Chapter/Region:
Tri-State
Location: TeamHazardRally.com
Vehicle:#716 Group5 S10 |
Any.
I'll check to see if the restrictor pill is in there. I bought the car mechanically stage 2 with no tune, so I've just been trying to tune it, and no matter how tight my wastegate arm is (or WGDC tables), the boost doesn't change. |
02-20-2013, 11:07 AM | #9 |
Scooby Specialist
Member#: 323908
Join Date: Jun 2012
Chapter/Region:
MWSOC
Location: Dayton Ohio
Vehicle:2013 BRZ ltd ISM |
Be on the look out for exhaust leaks pre turbo. Also be sure to make sure you dont have the catted up pipe still. If you do, it can disintegrate(the cat material) at any point and take your turbo with it. It also keeps your EGTs high and prevents you from boosting to the higher PSIs
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02-20-2013, 11:08 AM | #10 |
Scooby Specialist
Member#: 142405
Join Date: Mar 2007
Chapter/Region:
Tri-State
Location: TeamHazardRally.com
Vehicle:#716 Group5 S10 |
I had smoke tested for leaks, and that's all good. Previous owner said he just installed an STI uppipe.
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02-23-2013, 02:23 AM | #11 |
Scooby Newbie
Member#: 324540
Join Date: Jun 2012
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Boost leak test?
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02-28-2013, 02:56 AM | #12 |
Scooby Newbie
Member#: 348548
Join Date: Feb 2013
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I just went stage 1 in my wrx and only hitting 7 psi. Target is 13.5 so I called cobb and they told me to check my resistor pill. Looked at it and the hose was taped where it should be. Ordered a pill thinking it had to be missing since it was taped up. Ill find out Tuesday or Wednesday if it is that and ill let you know.
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