What should fuel pressure be set at?
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Supreme Member
Joined: Apr 2008
Posts: 2,342
Likes: 25
From: Dumfries, VA
Car: 1985 Z28
Engine: 334 Stroker Superram 222/230
Transmission: Full Manual 700R4 / 3k Street Edge
Axle/Gears: 3.90 Eaton, Moser, Richmond & More
What should fuel pressure be set at?
Tomorrow my fuel pressure gauge get's here and I can finally start my engine after many repairs. I installed a Holley AFPR because the diaphragm in the stock regulator was blown.
I was just wondering what I should set the fuel pressure to. What is the stock setting with engine off key on and at idle?
I have an 85 LB9 with headerback exhaust, ignition, free mods and a couple other things. I'm thinking 45lbs should be a good starting point.
I was just wondering what I should set the fuel pressure to. What is the stock setting with engine off key on and at idle?
I have an 85 LB9 with headerback exhaust, ignition, free mods and a couple other things. I'm thinking 45lbs should be a good starting point.
Joined: Jul 2003
Posts: 2,017
Likes: 13
From: Troup, Texas
Car: 1989 Camaro IROC-Z
Engine: ZZZ# 0607 of 1200 produced
Transmission: Pro-Built 700R4/Vig.2400
Axle/Gears: 3.27 BW 9 Bolt PBR Disc
Re: What should fuel pressure be set at?
You should be alright at 45. I think stock FP was somewhere around 38-40psi. Just remember to set it with the vacuum line disconnected from the AFPR.
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