what fuel pressure should I have?
Thread Starter
Joined: Jul 1999
Posts: 306
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From: Michigan
Car: 2KGTP
Engine: supercharged 3800 L67
Transmission: 4T65E
Axle/Gears: 2.93
what fuel pressure should I have?
305 tpi 91 z28 convertible. I hooked a gauge up to it and I have 25psi with the key on, no start. With the engine running at idle it's about 36psi, with the regulator disconnected it only goes up a couple more psi, never even close to 40psi. Does this sound normal?
Supreme Member
Joined: Mar 2003
Posts: 4,771
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From: Florida
Car: 1987 Black IROC-Z (SOLD)
Re: what fuel pressure should I have?
NO With the key on and engine off 36/38 psi and engine running at idle 38/40 psi. That is what I have on my underhood mounted FP gage.
Last edited by DJP87Z28; Aug 20, 2010 at 03:46 PM.
Thread Starter
Joined: Jul 1999
Posts: 306
Likes: 0
From: Michigan
Car: 2KGTP
Engine: supercharged 3800 L67
Transmission: 4T65E
Axle/Gears: 2.93
Re: what fuel pressure should I have?
thanks. With the engine at idle the psi was 36. When I stabbed the throttle the psi would drop slightly. No leaks or anything and we didn't do a volume test.
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