Quote:
Originally Posted by bret a ewing
John,
The fuel supply system on the CSX4XXX is quite similar to the original cars.
Utilizing a fuel cell with 2 pickup tubes and 2 separate fuel supply lines, one from each pickup. One pickup in the fuel cell is higher in the tank than the other.
The primary pickup is the higher of the two and is fed to the carb via the engines' mechanical fuel pump.
The secondary fuel supply is the lower pickup in the fuel cell and feeds the carb. via dual electric fuel pumps. They were Stewart Warners if I recall correctly.
The reasoning was, since there was no fuel guage on the S/C cars, you would run the car on the mechanical pump until the driver noticed the fuel pressure drop on the guage. At that time the driver would flip on the electric pumps giving him a reserve of about 3-5 gallons and head for the pits or gas station.
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I got some tech support (NOT from SAI , but from a nor Cal SAAC member) regarding how to plumb the fuel system after the motor was in the car. I probably will put a relay in run the facets for now, but I am investigating either adding a mechanical (there is no eccentric on the cam shaft right now) or just re-plumbing the whole system with a hi volume holly