Whats stock fuel pressure on ......

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12-20-2006, 08:57 AM

transaman98

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Whats stock fuel pressure on ......

I need to find out what stock fuel pressure is on a '98 LS1 Trans Am!!! Dont tell me "I think its XXX" I would prefer to hear something like "I know the answer to this question! Its XXXpsi!!!" Post em' if ya got em'!

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12-20-2006, 09:27 AM

SPRAYED 01

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58psi is stock pressure. It might be at about 60-61psi when cold started but will drop to 58psi and stay steady.

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12-20-2006, 10:11 AM

MeentSS02

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58 psi.

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12-20-2006, 11:21 AM

DrkPhx

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GM manual calls for between 55-60 psi for a 98.

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