fuel pressure?
03-22-2008, 06:19 PM
#2
6th Gear Member
Join Date: Oct 2005
Location: st clair shores MI
Posts: 6,028
RE: fuel pressure?
should be about 36psi at idle w/ vac on, 38-ish w/ vac off (may be as hi as 42)
42psi wot and vac on....flucuations between all those numbers are ok when intermediate throttle.....it should level out to about 36 psi though
more fp is bad....robs hp 34-35 at idle is best on a stockish 5.0 but you'll need to lean it out for that.
42psi wot and vac on....flucuations between all those numbers are ok when intermediate throttle.....it should level out to about 36 psi though
more fp is bad....robs hp 34-35 at idle is best on a stockish 5.0 but you'll need to lean it out for that.
03-23-2008, 12:53 AM
#3
1st Gear Member
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Join Date: Aug 2007
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Posts: 141
RE: fuel pressure?
I have it set at 37-38lbs at idle with the vac line on. Should it go up 1 or 2 lbs when I pull off the vacume line? I think I may be leaning out at wot. I sometimes get a popping noise around wot. I think I may need to turn it up to about 39-40lbs at idle.
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