fuel surge tank, how to set up?

[Cobra #3170]

Originally Posted by bobcowan

Probably. The collector is like a box that surrounds the fuel pick up, and has flap type doors - like a road racing oil pan. Like the oil pan, it helps to trap fuel around the pick up, so it doesn't go lean. My SA110 has a collector, and I can run the tank almost dry before is sputters in a corner.

A surge tank is another small fuel tank mounted near the fuel rails, in the engine compartment. That tank is fed by a low pressure pump. The surge tank has it's high pressure pump (for EFI) that will feed the fuel rails. I think this system is in very limited use, as I'v never actually seen one.

If you mount the surge tank in the back of the car, all you've done is create an external collector. Not sure there's a lot of value to it, considering the cost, complexity, and weight added.

The last thing I would want is the surge tank and pump in the engine compartment absorbing engine heat. My surge tank is in the trunk, the Bosch high pressure pump is located by the side of the LH frame rail so the rail protects it. The high pressure line feeds both fuel rails and then a pressure regulator on the dash returns fuel to the surge tank. A low pressure pump is located by the fuel tank and feeds the surge tank. Think of it as a dry sump for your fuel system. PS my dry sump is also in the trunk for the same reason, reduced heat, both systems work perfectly. A collector holds very little fuel, my surge tank holds about 2 gallons guess which one will run longer in a high speed corner.