gsr-t underboosting.. why please help
08-17-2007, 04:30 PM
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gsr-t underboosting.. why please help
hey guys iv got a built b18c with a turbo and had it tuned at 18 psi.iv been driving it for a while now with no problems and now all of the sudden its only pushing 15 psi . iv already done a leak down test on the whole turbo system and couldnt find any leaks i have a turboxs b.c. btw any help would be grreat
08-18-2007, 06:20 AM
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Re: (Schister66)
not that i know of do you think i should buy another one? is there anything else that may cause this?
its really weird, it went from what i had it set at (18 psi) then to 15psi, then 10 psi now its back to 15 wtf
its really weird, it went from what i had it set at (18 psi) then to 15psi, then 10 psi now its back to 15 wtf
08-18-2007, 06:27 AM
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Re: (boostedgsr1234)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostedgsr1234 »</TD></TR><TR><TD CLASS="quote">not that i know of do you think i should buy another one? is there anything else that may cause this?
its really weird, it went from what i had it set at (18 psi) then to 15psi, then 10 psi now its back to 15 wtf</TD></TR></TABLE>
sounds like the boost controller is acting up....
its really weird, it went from what i had it set at (18 psi) then to 15psi, then 10 psi now its back to 15 wtf</TD></TR></TABLE>
sounds like the boost controller is acting up....
08-20-2007, 12:19 PM
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Re: gsr-t underboosting.. why please help (boostedgsr1234)
iv done another leak down and everything from the turbo to the intake mani. gasket is air tight. is it a common problem for the turboxs b.c. to go after a while
i cant think of a reason why all the sudden the boost is 3 psi lower then i had it set at any reason why i shoulnt turnit up? what else should i look for?
i cant think of a reason why all the sudden the boost is 3 psi lower then i had it set at any reason why i shoulnt turnit up? what else should i look for?
08-20-2007, 01:33 PM
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Re: (mike@synapse motorsport)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike@synapse motorsport »</TD></TR><TR><TD CLASS="quote">take the boost controller out of the equation and see if boost is holding steady.</TD></TR></TABLE>
Yes. Also what is your wastegate spring rated at?
Yes. Also what is your wastegate spring rated at?
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08-20-2007, 03:46 PM
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Re: (rdssk8rcs1)
10 psi spring and how does taking the b.c. out work iv never done it? i just take it out and connect the hose directly to the w.g. what should it read?
08-21-2007, 08:25 AM
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Re: gsr-t underboosting.. why please help (boostedgsr1234)
One side of the boost controller goes to the wastegate, the other side to the turbo housing OR intake manifold. You should really read up on how a boost controller works - you simply replace it with a coupler for the 2 lines it attaches to, and you are back to the WG's 10psi spring. If it can't hold 10psi, its most likely not your turboxs boost controller.
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