Welcome to the North American Subaru Impreza Owners Club Thursday October 30, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
South West Impreza Club
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 Chapters > South West Impreza Club Forum -- SWIC

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 04-22-2009, 01:26 PM   #1
tobylazur
Scooby Specialist
 
Member#: 150289
Join Date: May 2007
Chapter/Region: SWIC
Location: PHX, AZ
Vehicle:
2006 SV650N
1972 Travelall

Default need help tracking down low boost problem...

My car is currently only hitting around 12-13 psi when (according to Cobb) it should be hitting about 16psi then tapering down to 13. Something is off that you can hear while driving the car. I can't tell if it's a boost leak, or an exhaust leak though.

anyone got some time to help me track the problem down? I'll bring some beer?
* Registered users of the site do not see these ads.
tobylazur is offline   Reply With Quote
Old 04-22-2009, 02:00 PM   #2
racingfish
Scooby Guru
 
Member#: 60976
Join Date: May 2004
Chapter/Region: SWIC
Location: Goodyear
Vehicle:
1969 LGT
FATURBO

Default

what does it sound like??? wheres the sound coming from and what kinda boost gauge r u using.. please dont say your using the cobb ap as your source
racingfish is offline   Reply With Quote
Old 04-22-2009, 02:20 PM   #3
tobylazur
Scooby Specialist
 
Member#: 150289
Join Date: May 2007
Chapter/Region: SWIC
Location: PHX, AZ
Vehicle:
2006 SV650N
1972 Travelall

Default

ha, it sounds a little like an exhaust leak at idle, and a boost leak under boost. I'm using an autometer guage, and comparing it to the gauge on my blitz turbo timer
tobylazur is offline   Reply With Quote
Old 04-22-2009, 03:02 PM   #4
cronic
Scooby Guru
 
Member#: 9749
Join Date: Aug 2001
Chapter/Region: SWIC
Vehicle:
-

Default

Do you have an aftermarket uppipe?
cronic is offline   Reply With Quote
Old 04-22-2009, 03:50 PM   #5
szeny
Scooby Guru
 
Member#: 81383
Join Date: Feb 2005
Chapter/Region: SWIC
Location: Paradise Valley
Vehicle:
07 335i e90
TiAG/Dakota Black

Default

Quote:
Originally Posted by cronic View Post
Do you have an aftermarket uppipe?
. dot dot dot
szeny is offline   Reply With Quote
Old 04-22-2009, 04:04 PM   #6
tobylazur
Scooby Specialist
 
Member#: 150289
Join Date: May 2007
Chapter/Region: SWIC
Location: PHX, AZ
Vehicle:
2006 SV650N
1972 Travelall

Default

Quote:
Originally Posted by cronic View Post
Do you have an aftermarket uppipe?
I do. Between the uppipe and turbo is the only gasket I haven't replaced yet.
tobylazur is offline   Reply With Quote
Old 04-22-2009, 07:27 PM   #7
blkscooby
Scooby Specialist
 
Member#: 44422
Join Date: Sep 2003
Chapter/Region: SWIC
Location: Gilbert, AZ
Vehicle:
2009 G8 GT
Cammed, sprayed, stalled

Default

Quote:
Originally Posted by tobylazur View Post
I do. Between the uppipe and turbo is the only gasket I haven't replaced yet.
That would be the first thing to check.

Another common place is the BPV to TMIC gasket but usually only if you have recently removed the TMIC. The turbo outlet pipe sometimes will not seat correctly when the TMIC is replaced also. BOth of these leaks sound like a screaming cat under boost though.
blkscooby is offline   Reply With Quote
Old 04-22-2009, 10:43 PM   #8
tobylazur
Scooby Specialist
 
Member#: 150289
Join Date: May 2007
Chapter/Region: SWIC
Location: PHX, AZ
Vehicle:
2006 SV650N
1972 Travelall

Default

Quote:
Originally Posted by blkscooby View Post
That would be the first thing to check.

Another common place is the BPV to TMIC gasket but usually only if you have recently removed the TMIC. The turbo outlet pipe sometimes will not seat correctly when the TMIC is replaced also. BOth of these leaks sound like a screaming cat under boost though.
Is there anyway to check these other than visually?
tobylazur is offline   Reply With Quote
Old 04-23-2009, 01:58 AM   #9
racingfish
Scooby Guru
 
Member#: 60976
Join Date: May 2004
Chapter/Region: SWIC
Location: Goodyear
Vehicle:
1969 LGT
FATURBO

Default

if you have an exhaust leak stick your hand were teh seals are... if u feel air beating on your hand then u have a leak. if your scared to stick your hand down near your dp then use a piece of WHITE paper.
racingfish is offline   Reply With Quote
Old 04-23-2009, 03:46 AM   #10
szeny
Scooby Guru
 
Member#: 81383
Join Date: Feb 2005
Chapter/Region: SWIC
Location: Paradise Valley
Vehicle:
07 335i e90
TiAG/Dakota Black

Default

you cna put soapy water on the BOV and see if it bubbles..
szeny is offline   Reply With Quote
Old 04-23-2009, 11:52 AM   #11
tobylazur
Scooby Specialist
 
Member#: 150289
Join Date: May 2007
Chapter/Region: SWIC
Location: PHX, AZ
Vehicle:
2006 SV650N
1972 Travelall

Default

Quote:
Originally Posted by szeny View Post
you cna put soapy water on the BOV and see if it bubbles..
isn't the bov under vaccum at idle?
tobylazur is offline   Reply With Quote
Old 04-23-2009, 12:23 PM   #12
racingfish
Scooby Guru
 
Member#: 60976
Join Date: May 2004
Chapter/Region: SWIC
Location: Goodyear
Vehicle:
1969 LGT
FATURBO

Default

rev the engine.
racingfish is offline   Reply With Quote
Old 04-23-2009, 12:43 PM   #13
szeny
Scooby Guru
 
Member#: 81383
Join Date: Feb 2005
Chapter/Region: SWIC
Location: Paradise Valley
Vehicle:
07 335i e90
TiAG/Dakota Black

Default

Quote:
Originally Posted by tobylazur View Post
isn't the bov under vaccum at idle?
thought the leak was under low boost? like fish said rev the engine and watch for bubbles on the bov... probably that uppipe leak like chronic said tho
Quote:
Originally Posted by racingfish View Post
rev the engine.


i had a bov leak and it would sound like a turkey when i boosted low
szeny is offline   Reply With Quote
Old 04-23-2009, 12:53 PM   #14
racingfish
Scooby Guru
 
Member#: 60976
Join Date: May 2004
Chapter/Region: SWIC
Location: Goodyear
Vehicle:
1969 LGT
FATURBO

Default

gobblegobblebietches
racingfish is offline   Reply With Quote
Old 04-23-2009, 01:30 PM   #15
tobylazur
Scooby Specialist
 
Member#: 150289
Join Date: May 2007
Chapter/Region: SWIC
Location: PHX, AZ
Vehicle:
2006 SV650N
1972 Travelall

Default

Quote:
Originally Posted by szeny View Post
thought the leak was under low boost? like fish said rev the engine and watch for bubbles on the bov... probably that uppipe leak like chronic said tho

i had a bov leak and it would sound like a turkey when i boosted low
Ok, I'm gonna try these tomorrow afternoon. I'll post back with some results.
tobylazur is offline   Reply With Quote
Old 04-23-2009, 06:52 PM   #16
MrMcCrackin
Scooby Specialist
 
Member#: 89202
Join Date: Jun 2005
Chapter/Region: SWIC
Location: McCrackin Plumbing
Vehicle:
I'm # 1 when it
comes to # 2

Default

Quote:
Originally Posted by racingfish View Post
if your scared to stick your hand down near your dp then use a piece of WHITE paper.
post reported scumbag!!!

enjoy ur 9 points!
MrMcCrackin is offline   Reply With Quote
Old 04-23-2009, 07:56 PM   #17
racingfish
Scooby Guru
 
Member#: 60976
Join Date: May 2004
Chapter/Region: SWIC
Location: Goodyear
Vehicle:
1969 LGT
FATURBO

Default

lol....


hopefully he doesnt find any CRACKor leaks.
racingfish 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
NoVA: Need help tracking down nozzles for IC spray + Install in the next 2 days? AcquaCow Mid Atlantic Impreza Club -- MAIC 11 09-26-2007 09:50 AM
boost leak need help tracking it down. hybrid gti 2 Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 10 04-16-2007 07:24 AM
Need help tracking down a scammer (fellow suby owner) in E-Town Canadian 2.5RS Canada Region Forum 28 06-04-2006 05:43 PM
Urgent: Need help tracking down why shifting into reverse is blowing a fuse. Geoff Electrical & Lighting 5 06-02-2005 10:42 PM
Need help tracking down small class T (75w) and class D (2x 200w, or 1x 400w) amps. AcquaCow Car Audio, Video & Security 13 12-10-2004 05:33 PM


All times are GMT -4. The time now is 02:38 PM.


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.