Welcome to the North American Subaru Impreza Owners Club Monday July 14, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Engine Management & Tuning > AccessPort

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 06-14-2006, 05:14 PM   #1
gopsu
Scooby Specialist
 
Member#: 96448
Join Date: Sep 2005
Chapter/Region: Tri-State
Location: NY
Vehicle:
02 WRX VF34

Default Stage 4 hitting just 12psi in 4th gear...

My friend recently upgraded his stage 2 WRX to stage 4.

AP VF34 map
VF34 ported
JDM STi TMIC
Perrin turbo inlet
Borla header
catless TBE
Uppipe
Stock intake
Stock T-hose and "pill" from TD04

Now, problem is that he's only able to hit 12psi at max... that's what's read on AP live meter and defi boost gauge. Can someone point to where he should look as far as fixing the boost problem? He doesn't hear any whining or high pitch sounds which would point to potential leak problem...

Your help is appreciated.
* Registered users of the site do not see these ads.
gopsu is offline   Reply With Quote
Old 06-14-2006, 05:18 PM   #2
parker/slc/gc8fan
Scooby Specialist
 
Member#: 46241
Join Date: Oct 2003
Chapter/Region: RMIC
Location: Tinsel Towers. Apt. 29
Vehicle:
- RIP
SDF-1

Default

I'd point him to a protuner to have a custom map made for those extra parts he's running. Unless he wants to take them off and get back to Cobb's spec.

He'll make more power with a tune, way more.
parker/slc/gc8fan is offline   Reply With Quote
Old 06-15-2006, 03:40 AM   #3
dvang
Scooby Specialist
 
Member#: 84188
Join Date: Mar 2005
Chapter/Region: MWSOC
Location: its too cold
Vehicle:
05 legacy
caravan full of kids now

Default

over ported turbo, pre turbo exhaust leak, or weak wastegate. try a helper spring and check for leaks
dvang is offline   Reply With Quote
Old 06-16-2006, 01:47 AM   #4
benw
Scooby Specialist
 
Member#: 103320
Join Date: Dec 2005
Location: Oklahoma City
Vehicle:
2005 wingless
aspen white

Default

data log. see if your ECU is hanging the WG open at 100%. I'd bet on a boost leak somewhere. See the EM forum sticky's for the DIY leak finder.
benw is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
WTB: gear set or just 3rd and 4th gear of 02 wrx AFBeefcake Private 'Wanted' Classifieds 12 10-16-2006 10:20 PM
Access Port Stage 2 only hitting 13.3psi in 3rd gear Airboy Western Canada 2 07-17-2006 11:30 PM
Those of u with td06-20g or 18g on sti-in 4th gear at what rpm do u hit full boost? odin1 Factory 2.5L Turbo Powertrain 38 11-22-2005 12:43 AM
Stock (?) MY04 WRX pulling 12psi+ in 1st gear.. that's not good, right? woody77 Factory 2.0L Turbo Powertrain 19 10-22-2005 08:42 AM
TurboXS Stage 2 loss of power in 4th gear camdoc Factory 2.0L Turbo Powertrain 28 09-04-2002 10:48 AM


All times are GMT -4. The time now is 07:39 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.