Cant hold Boost in second gear??? HELP
09-29-2002, 09:40 AM
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Cant hold Boost in second gear??? HELP
Well I have this weird problem!
In first gear I cant really hit past 5-6PSI but I herd that normal!
then second gear, I hit 8.5psi(what its suppose to be) at about 5k RPM but then by 7k it has dropped to 6psi! Why is that
then 3rd gear, holds at 8.5 right till about 6.5K then drops to 7-8psi or so
4th gear hold boost right till redline
and so does 5th gear!
What do you guys think my problem is? I have a manuel boost control and an internal wategate if that helps?
thanks
Tyler
In first gear I cant really hit past 5-6PSI but I herd that normal!
then second gear, I hit 8.5psi(what its suppose to be) at about 5k RPM but then by 7k it has dropped to 6psi! Why is that
then 3rd gear, holds at 8.5 right till about 6.5K then drops to 7-8psi or so
4th gear hold boost right till redline
and so does 5th gear!
What do you guys think my problem is? I have a manuel boost control and an internal wategate if that helps?
thanks
Tyler
09-29-2002, 09:51 AM
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Re: Cant hold Boost in second gear??? HELP (ATgrills.com)
Try removing the MBC, and see how it runs...otherwise, I'm guessing you're leaking boost somewhere or theres not enough fuel....check all lines, fittings, and clamps and stuff...see how things go..Good Luck
09-29-2002, 10:06 AM
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Re: Cant hold Boost in second gear??? HELP (SiDESLiDE240)
ya even without the MBC it still does that!
will a Profec solve my problem?
if am leaking boost wouldnt I not be able to fit full boost in 3-4-5?
Tyler
will a Profec solve my problem?
if am leaking boost wouldnt I not be able to fit full boost in 3-4-5?
Tyler
09-29-2002, 10:40 AM
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Re: Cant hold Boost in second gear??? HELP (bretx0r)
sounds like a boost leak. what's odd is that I have an exhaust leak and I still hit full boost(7psi, though it was 9!) in 1st gear...so, I doubt it's an exhaust leak. it could be that your wastegate is opening too soon and not reaching its peak fast enough to see it in first.
09-29-2002, 10:48 AM
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Re: Cant hold Boost in second gear??? HELP (ion_four)
well second gear goes right up to 9psi but then falls to 7psi!! I dont get it!
by the way I have a 2 1/4 wrap arround exhaust. and my turbo manifold is ports matched soits not perfect!
could that be the problem!
Tyler
by the way I have a 2 1/4 wrap arround exhaust. and my turbo manifold is ports matched soits not perfect!
could that be the problem!
Tyler
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