whats a good fuel psi?
09-28-2007, 10:08 PM
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Car: 86 firebird with 98 firebird interi
Engine: pump gas 427sbc Dart Lil M 13.5:1
Transmission: Oldani TH400 w/ BTE 9" convertor
Axle/Gears: 31 spline Moser/full spool/4.11Rich
Re: whats a good fuel psi?
While 5 psi is fine at idle, find out what your doing at WOT. I can tell you with first hand info, I was forced to use a holley red pump as a crutch when my race pump took a dump, idling i was still at 8 psi where i set it, soon as i left the gate it dumped to 3psi and by half track there was a noticable slow down and by the end of the track i was getting a lean pop...pump could not keep up and i literally lost .3 from just swapping pump a with pump b.
I always shoot for 8psi at idle and like to see it stay rock solid no matter what i'm doing.
I always shoot for 8psi at idle and like to see it stay rock solid no matter what i'm doing.
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