stock fuel pressure

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Jul 6, 2010 | 08:15 AM

matt1970pon

Thread Starter

Junior Member

Joined: Feb 2010

Posts: 94

Likes: 0

Car: 1987 iroc z

Engine: 305 tpi

Transmission: MM5

Axle/Gears: 3.45 g92

stock fuel pressure

I just ordered a BBK adjustible fuel regulator for my iroc.The fuel pressure is at 85lbs right now and car is very fuelly and running horrible, so hence why the new regulator.What should I set the regulator at once I install?

Jul 6, 2010 | 08:33 AM

John 89 Formula

Senior Member

Joined: Jul 1999

Posts: 853

Likes: 0

From: Everett, MA . USA

Car: 89 FORMULA FIREBIRD, 86 CHEVY CAMARO

Engine: L98, LB9 RESPECTIVLY

Transmission: 700 R4 (BOTH)

Re: stock fuel pressure

40 - 45 psi should be ok

Jul 6, 2010 | 08:35 AM

Twin_Turbo

Supreme Member

iTrader: (25)

Joined: Jun 2000

Posts: 5,364

Likes: 51

From: Enschede, Netherlands

Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98

Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI

Transmission: T5, 700R4, T5, 700R4

Axle/Gears: 3.08, 3.27, 3.45, 3.27

Re: stock fuel pressure

Dang 85, if you have multecs they will probably lock up on you, those black rochesters probably won't but no wonder it's running rich.

Jul 6, 2010 | 09:07 AM

matt1970pon

Thread Starter

Junior Member

Joined: Feb 2010

Posts: 94

Likes: 0

Car: 1987 iroc z

Engine: 305 tpi

Transmission: MM5

Axle/Gears: 3.45 g92

Re: stock fuel pressure

yep..80 to 85.Sits at about 50 with key off. Then 80 with vaccum line still hooked up running.Very stinky.OK so I'll aim for 40-45 running i'm asuming.Thanks!