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Oct 24, 2009, 05:26 PM
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#1
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Newbie
Personal Sales Rating: ( 3)
Join Date: Sep 2008
Location: Madison, WI
Posts: 32
Drives: Evo X 2008 GSR; 06 IX MR(gone)
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boost leak test
hi I am trying to DIY boost leak test. does anyone know which location I should start to hook it up? and what diameter should i use? I have searched alot but there is no one for evo x. I made a two inch tester
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2008 PB Evo X GSR w/ sss
Greddy TIC/Ichiba Test Pipe
Custom intake/turbo inlet
Prosport Boost & AEM wideband
cobb AP custom self tune
going to E-85
2006 GG Evolution IX MR (sold)
ACT HD6P clutch and flywheel/Walbro 255 /Fujita Intake, UICP and LICP/HKS HI exhaust.
Last edited by ganghyung; Oct 24, 2009 at 06:49 PM.
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Oct 25, 2009, 01:24 AM
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#2
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Newbie
Personal Sales Rating: ( 3)
Join Date: Sep 2008
Location: Madison, WI
Posts: 32
Drives: Evo X 2008 GSR; 06 IX MR(gone)
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I hooked it up to UICP, and air was entered constantly until 25psi. it slowed down to zero. I did several times but i heard anything from there. but my boost still peaks 13 psi with no tapering. is there other restrictors to raise the boost level such as boost pills or Solenoid?? I am using AP stage 1.
__________________
2008 PB Evo X GSR w/ sss
Greddy TIC/Ichiba Test Pipe
Custom intake/turbo inlet
Prosport Boost & AEM wideband
cobb AP custom self tune
going to E-85
2006 GG Evolution IX MR (sold)
ACT HD6P clutch and flywheel/Walbro 255 /Fujita Intake, UICP and LICP/HKS HI exhaust.
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Oct 25, 2009, 06:16 PM
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#3
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Evolving Member
Personal Sales Rating: ( 3)
Join Date: Mar 2008
Location: Miami
Posts: 365
Drives: 2008 WW X
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I've heard the best place to hook up the is the turbo inlet, and other people on the forum have told me it is 3 inches.
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Last edited by Bighec; Oct 25, 2009 at 06:18 PM.
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Oct 26, 2009, 08:22 PM
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#4
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Newbie
Personal Sales Rating: ( 0)
Join Date: Jan 2009
Location: Arizona
Posts: 70
Drives: Nothing
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My understanding was that you need to take off the intake and hook it up (i.e. turbo inlet). This is what I was planning on doing when I finish building mine.
Sorry, I think it is 2.5 inches, not three. The intake reduces down in size when it gets to the turbo. Someone correct me here if I am wrong.
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Oct 26, 2009, 11:33 PM
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#5
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Evolving Member
Personal Sales Rating: ( 5)
Join Date: Jul 2008
Location: houston
Posts: 136
Drives: Lancer
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yupp use the turbo inlet, and take a spray bottle and put soapy water in it. When you spray the connections, if there is a leak...it should make bubbles.
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Oct 26, 2009, 11:49 PM
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#6
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Evolving Member
Personal Sales Rating: ( 0)
Join Date: Jun 2008
Location: houston, tx
Posts: 357
Drives: PB EVO X
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turbo inlet and its 2.5"
i just did a boost leak test this weekend.
I found out the stock bov leaks at 27psi. at least for me it does.. i needed to boost 30psi+
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Nov 1, 2009, 05:28 PM
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#7
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Join Date: Jan 2009
Location: Arizona
Posts: 70
Drives: Nothing
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So you are saying don't pump in more than 27 psi, or it leaks out anyway?
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Nov 1, 2009, 05:48 PM
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#8
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Evolved Member
Personal Sales Rating: ( 0)
Join Date: Aug 2008
Location: Minnesota
Posts: 506
Drives: 08 RR X GSR
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The factory bypass valve varies pretty widely from Mitsu, its the same one from the Evo 9's. Some will hold 33psi, others only 25-26.
You can crush your bypass valve to make it hold more.
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Nov 1, 2009, 06:01 PM
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#9
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Location: Arizona
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Should I just search for a thread on that?
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Nov 2, 2009, 12:09 AM
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#10
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Evolving Member
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Join Date: May 2003
Location: San Jose
Posts: 153
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i heard there is an o-ring in the turbo oil line that can get displaced if you pressurize the crank case too much. Has anyone experienced an oil leak after doing a boost leak test?
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