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In second gear boost goes from 7.5 to 5 psi as soon as it hits 7.5 it drops. only in second gear?

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Old 09-27-2003, 11:19 PM
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Default In second gear boost goes from 7.5 to 5 psi as soon as it hits 7.5 it drops. only in second gear?

I have a mbc set to 7.5 psi and it will hit in everygear, but in second it will loose pressure after it gets 7.5 psi then it drops to about 5 psi. Any ideas? I've been doing searching on boost leaks. And I think thats the problem. anyone one else concur?

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Old 09-27-2003, 11:30 PM
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your turbo might not be big enough to boost the whole power band in second gear....
Old 09-27-2003, 11:51 PM
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Default Re: In second gear boost goes from 7.5 to 5 psi as soon as it hits 7.5 it drops. only in second gear

hmm...maybe your wastegate is opening too early?!? it only do this in 2nd gear? did you keep your foot on the gas pedal or did you let off somewhat? too many variables...but IMO if it's only doing this in 2nd gear, it's probably not a serious boost leak.
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