626Chevelle
10-02-2015, 07:19 AM
I have a Carter external electric fuel pump (4600hp) running fuel to a Holley carburetor. The psi should be between 5-7 psi. When I start the vehicle its at 6 psi at the carb. Approximately 15 min later it drops down to 0 psi at the carb. I have tested the psi directly from the pump at it drops down to 4-3 psi which is still terrible. Motor is a Carbed LS1
The fuel lines are cleaned and replaced the fuel filter
The fuel pump is new and new fuel tank
The pump has an internal regulator and no strainer inside.
Is this the cause of a voltage problem? If it was a voltage issue, the pressure would be low right from the start right?
Thanks
The fuel lines are cleaned and replaced the fuel filter
The fuel pump is new and new fuel tank
The pump has an internal regulator and no strainer inside.
Is this the cause of a voltage problem? If it was a voltage issue, the pressure would be low right from the start right?
Thanks