second fuel pump problem
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Joined: Oct 2004
Posts: 379
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From: ohio
Car: 88IROC vert and a 83 w/evo body
Engine: 400 and 350
Transmission: T56 and 700R4
Axle/Gears: 323 and 373
second fuel pump problem
When my car is running both luel pumps my car stumbles and dies after I floor it and let off quickly. If I unhook my second fuel pump it does not do this.
I have a Vortech supercharger with FMU if this helps. It also is a MAP.
I have a Vortech supercharger with FMU if this helps. It also is a MAP.
Joined: Jul 1999
Posts: 2,926
Likes: 5
From: Tucson, Arizona USA
Car: 1987 Z28 Convertible
Engine: 305 TPI
Transmission: 5-speed
More details please. Are your pumps in series or parallel? What is your nominal fuel pressure and does it change when the problem occurs?
Thread Starter
Member
Joined: Oct 2004
Posts: 379
Likes: 0
From: ohio
Car: 88IROC vert and a 83 w/evo body
Engine: 400 and 350
Transmission: T56 and 700R4
Axle/Gears: 323 and 373
I have the original pump in the tank and the new one that came with the kit mounted infront of the strut tower. The pressure with just the stck pump is reading 38psi. This is due to the new pump restricking the flow. When I turn on the new pump pressure is set at 50psi and that is where it is at.
Last edited by evoluzione1; Mar 12, 2006 at 03:57 PM.
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