Electric fuel pump recommendation

[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.

[Cobra #3170]

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.

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.

[bobcowan]

I have an Aeromotive A1000. It's mounted just in front of the fuel cell, just about in the middle of the cell. It works just fine there.

I don't remember what fuel tank your car uses. But, if possible, you should try an in-tank pump. They're generally cheaper, quieter, and last longer than aftermarket external pumps.

[LodiWino]

Look at a Weldon A-600A pump with A2040 regulator and WEQ0810CLN and WEQ100MC filters. This pump can be mounted above the tank with no problems. Discuss with Jim Craig at Weldon

[G_Edmonds]

SGR,
I think most CR builders mount the electric fuel pump on the crossmember just in front of the fuel tank. This is pretty close to the sending unit/pick-up. I run a Carter HP4601 with a return style pressure regulator. The only time I've lost fuel was on a road course with the fuel level getting low.
Good luck with your build.
-Greg

[Wisconsin_Snake]

I just spent a ton of time doing research on doing this right... Let me ask, are you going to use the factory fuel rails / quick disconnect clamps? If so, the 5/16 nylon hose is closer to 1/4 rubber hose. As far as hoses, they are all fuel injection ratred hoses right?

Ideally you are going to need two pumps, a low pressure pump, a fuel reservoir/accumulator (that your return hose from the fuel rail will also go to) then a high pressure pump that will spend fuel to the engine/fuel rail. You will want fuel filters before both pumps. My fuel accumulator also acts as a fuel reservoir.
This site is a good resource Classic Broncos .com - Tech: Installing EFI into a 66-77 Early Ford Bronco
I am going to use a MSD 2225 fuel injection pump... I am building my car and I am just getting to the part of running the fuel system so I can't provide feedback on the pump yet.

[Dwight]

What fuel pressure will the aftermarket EFI require?
What horsepower will your motor make?

I have a Holley in line 45 PSI pump mounted on my frame rail beside the tank. Maybe six inches above the bottom of the tank. It's a pusher pump, as most are. That is why they need to be as close as possible to the tank pick up and as low as possible.
Mine pick up is in the middle of the tank, front, center, bottom. I have about 18" of hose from the tank to the pump.
I run 40 PSI and my motor makes 400 rear wheel horsepower. I have used the same Holley pump for 12 years and 36,000 miles. Different motors but same pump.
You need a pump that will suppy the amount of gas needed for the horsepower your motor will make at max rpm.

And a fuel line that will support the fuel demand. 3/8" for most street cars.

Jegs has a Holley pump that may work for you.

Holley 12-920 for $172.

Dwight