Quote:
Originally Posted by SGR
I am building a Classic Roadsters Cobra and plan to run aftermarket EFI on a small block Ford. Most (if not all) electric fuel pumps say that they need mounted lower than the fuel tank and within 2' of the sending unit in order to gravity feed the pump. With the fuel tank hanging lower than the rear frame rails, this seems difficult. Is anyone out there running an electric fuel pump? If so, where have you mounted it and have you had any issues with it? Brand and model recommendations are much appreciated as well.
Thanks.
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I run a Holley Blue pump above the fuel tank in the trunk feeding a 1 gallon reservoir with a 4 PSI relief valve on top that returns fuel to the tank. Then I have a Bosch EFI pump that is fed from the bottom of the 1 gallon reservoir. The Bosch pump is mounted on the frame and has a return line from the fuel regulator that also returns fuel to the tank. both pumps have filters before the intake and the Bosch pump also has one on the output side. The reservoir is necessary if you are using a conventional tank because if you get a shot of air under high cornering, braking or acceleration loads the injection will give your engine a shot of air. The reservoir is a tall small diameter tank and acts like a dry sump for the fuel pump. I pick up fuel on one side of the tank and return it on the opposite side to reduce heating effect. The pressure relief valve on the reservoir ensures that the Bosch pump gets 4 psi on it's intake at all times.