1st gear boost

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04-03-04, 01:26 AM

jdmhatchback

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1st gear boost

i've noticed that tonite my car is only boosting around 6-7 psi and struggles with that but when i shift to 2nd gear and all the others it has a perfect 10-8-10 pattern. is it just me or is something wrong?? Is that normal or do i have a vacuum leak somewhere? how

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04-03-04, 01:43 AM

MakoRacing

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a vacuum leak would affect more than just 1st gear...so im not sure..

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04-03-04, 02:21 AM

XSTransAm

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boost is load dependant... you will never get the same boost in 1st gear as you would in say 4th.

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04-03-04, 09:50 AM

CYM TKT

hey, your car is on fire!

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especially when first just spins

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04-03-04, 10:35 AM

RX7Wishing

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you still should be hitting 10 psi in first. ican rev my engine and get about 6 psi.

Check for a small boost leak somewhere. its possible that a small enough boost leak will show its face in first and not other gears since they are geared longer and the turbos have time to compinsate.