Correct stock Fuel Pressure

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Sep 30, 2011 | 04:30 PM

Shinobi'sZ

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Correct stock Fuel Pressure

I have an AFPR and cat delete, what is the stock fuel pressure? I think I have this set to 62 psi and it is running a little too rich.

Sep 30, 2011 | 05:14 PM

TTOP350

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From: Il

Car: 1989-92 FORMULA350 305 92 Hawkclone

Engine: 4++,350 & 305 CIs

Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5

Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt

Re: Correct stock Fuel Pressure

I like 47-50.
I cant member what stock is, 43ish ?

Sep 30, 2011 | 11:40 PM

Shinobi'sZ

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Re: Correct stock Fuel Pressure

Is that with the vacuum line disconnected or connected?

Oct 1, 2011 | 08:20 PM

Damon

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From: Philly, PA

Re: Correct stock Fuel Pressure

43 PSI is stock (vacuum line disconnected). Manifold vacuum lowers it from there under idle/part throttle conditions when manifold vacuum exists.

Oct 2, 2011 | 10:01 AM

ninetyone

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From: Delaware

Car: 91' Firebird SOLD

Engine: 350 TPI +bolt-ons

Transmission: 700r4

Axle/Gears: 3:42

Re: Correct stock Fuel Pressure

Quote:

Originally Posted by Damon

43 PSI is stock (vacuum line disconnected). Manifold vacuum lowers it from there under idle/part throttle conditions when manifold vacuum exists.

Damon is correct. It is actually 43.5 psi for stock with the line disconnected.

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