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Old 09-02-2017, 07:11 PM   #1
Scooby Newbie
Member#: 471513
Join Date: Jul 2017
Default Boost creep after turbo port, now what?

09 wrx
New rebuilt vf52
Perrin divorced catted dp
Invidia q300
Cobb stage 2 Lwg ots

So after installing my turbo back system and new turbo, I've had really bad boost creep in all gears (I logged 23 pounds peak in 2nd gear). I just finished porting my turbo, and now I'm only creeping in 3rd(peak 20.5), 4th, and 5th gear. Is it possible that I just didn't port it enough? What are my options? I'm not ready to go to an ewg. Even if I can only get it to where it doesn't creep until higher up in 4th I'd be happy. Thanks
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Old 09-06-2017, 02:58 AM   #2
Scooby Newbie
Member#: 72938
Join Date: Oct 2004
Chapter/Region: MWSOC
Location: Chicago area
16 STI


You might want to try some stiffer springs, to make up for the extra volume of air.
technica is offline   Reply With Quote
Old 09-06-2017, 10:21 AM   #3
Scooby Newbie
Member#: 254317
Join Date: Aug 2010
Location: Toronto, Canada
2011 STi


Get a pro-tune
lowbee is offline   Reply With Quote
Old 09-06-2017, 12:22 PM   #4
Scooby Newbie
Member#: 372777
Join Date: Nov 2013
Chapter/Region: SCIC
Location: Compton, CA
2014 WRX Sedan Lmtd


Didn't see you mention you got tuned, you completely changed the flow of the turbo, pro tune before you lean out and boom.
Zcypot is offline   Reply With Quote
Old 09-06-2017, 12:33 PM   #5
Scooby Specialist
Member#: 181298
Join Date: May 2008
Chapter/Region: MAIC
Location: MAIC
2015 WRX Limited
Lightning Red


EBCS recommended also
wrxlaunch is offline   Reply With Quote
Old 09-06-2017, 01:23 PM   #6
Scooby Specialist
Member#: 375462
Join Date: Dec 2013
Chapter/Region: NWIC
Location: Portland, OR
2006 Impreza WRX STI
WR Blue


23 psi in second gear is not boost creep - you have a mechanical issue.

Did you mess with the wastegate actuator arm at all?
Did you ensure the wastegate is physically able to fully open into the bell mouth?
Did you install a EBCS and just run it on the OTS Cobb map?

Any one of these things can cause your problem, but boost creep is not one of them.
mrsaturn7085 is offline   Reply With Quote
Old 09-11-2017, 07:51 PM   #7
Scooby Specialist
Member#: 274499
Join Date: Feb 2011
Chapter/Region: NESIC
Location: RI
1994 5.8T Cobra
755rwhp @ 16psi


ill never understand why people try to solve tune related issues, when they have an OTS map.

Especially with mods that arent covered by such.
Black94Snake is offline   Reply With Quote

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