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stock fuel pressure?

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Old

Sep 16, 2007 | 04:07 PM

#1

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Joined: Sep 2007

Posts: 109

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From: Dumont NJ

Car: 1991 Camaro Z28

Engine: 305

Transmission: 5 speed

Axle/Gears: alunimum drum limited slip 3.08

stock fuel pressure?

does anyone know what the stock fuel pressure is with the hose off?

Old

Sep 16, 2007 | 07:35 PM

#2

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Joined: Jul 2006

Posts: 811

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From: 4-22 / 7-25

Car: '91 Z28 L98 G92

Engine: Modded L98

Transmission: Modded 700R4

Axle/Gears: Modded 10-Bolt

Re: stock fuel pressure?

43.5 PSI, I think.
Bill

Old

Sep 16, 2007 | 07:50 PM

#3

Thread Starter

Member

Joined: Sep 2007

Posts: 109

Likes: 1

From: Dumont NJ

Car: 1991 Camaro Z28

Engine: 305

Transmission: 5 speed

Axle/Gears: alunimum drum limited slip 3.08

Re: stock fuel pressure?

thanks!

Old

Sep 17, 2007 | 11:47 PM

#4

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Posts: 339

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From: North Battleford, Saskatchewan, Canada

Car: 91 GTA & 92 GTA & 92 GTA

Engine: 305 TPI & 350 TPI & 350 TPI

Transmission: 700R4

Axle/Gears: 3.42 & 3.23 & 3.23

Re: stock fuel pressure?

44 psi on my 305 TPI auto 91 GTA. It varies from year to year though.

Old

Oct 3, 2007 | 06:15 PM

#5

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From: west coast

Re: stock fuel pressure?

what is the PSI connected

Old

Oct 23, 2007 | 12:34 AM

#6

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Joined: Oct 2000

Posts: 809

Likes: 24

Re: stock fuel pressure?

This is important. my 1989 LB9 is 47 psi no vacuum. 38 idle with vac.
maybe GM went to 47 because my car has the dual cats ???

I know there are a few different GM part #'s for FPR's/

Old

Oct 23, 2007 | 12:47 AM

#7

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Joined: Jan 2005

Posts: 10,407

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From: Hurst, Texas

Car: 1983 G20 Chevy

Engine: 305 TPI

Transmission: 4L60

Axle/Gears: 14 bolt with 3.07 gears

Re: stock fuel pressure?

Quote:

Originally Posted by Larry Burd

This is important. my 1989 LB9 is 47 psi no vacuum. 38 idle with vac.
maybe GM went to 47 because my car has the dual cats ???

I know there are a few different GM part #'s for FPR's/

My setup was from a 1986 Peanut cammed 305 Automatic. 46PSI with the line disconnected and 38 psi with my normal idle vacuum of 18 in/hg applied.

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