Fuel pressure for LT4
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Race Director
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From: St. Peters MO Sometimes you have to prove yourself by doing alot of killing or alot of dying...
Fuel pressure for LT4
I think I just pulled a real nice bone head move!!! I just installed an Aeromotive AFPR on my LT4... but I did not check the stock fuel pressure before I yanked the old part off. Anyone know what stock fuel pressure of an LT4 is??? 
Le Mans Master
Joined: Feb 2002
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Originally Posted by 99svrcpe
I believe stock is 43.5 psi with vac line off.
Spec is 41 - 47psi I think. That is with no vacuum to FPR (simulated full throttle).On my '95 at idle with vacuum line ON it shows about 36psi, remove vac line and it goes to 44psi.
Melting Slicks
Joined: Jun 1999
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From: Bowling Green KY
Originally Posted by kwik_ta
I think I just pulled a real nice bone head move!!! I just installed an Aeromotive AFPR on my LT4... but I did not check the stock fuel pressure before I yanked the old part off. Anyone know what stock fuel pressure of an LT4 is???
Or do you ask just for a baseline?
I also just purchased one but I haven't put it on yet. Nice piece.
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From: St. Peters MO Sometimes you have to prove yourself by doing alot of killing or alot of dying...
Originally Posted by RUKWKR
But aren't you putting that on to be able to adjust it anyway?
Or do you ask just for a baseline?
I also just purchased one but I haven't put it on yet. Nice piece.
Or do you ask just for a baseline?
I also just purchased one but I haven't put it on yet. Nice piece.
