Quote:
Originally Posted by socalliving
Have a Backdraft with aluminum tank. There is a -06 an bulkhead fitting that is currently capped almost at top(vertical part of tank)facing towards the front of car. Can/should I use this to place a fuel vent valve? Rollover valve? My return line is tee’d into the filler tube.
I have a g-surge high pressure pump in the engine compartment. It requires a full return line to the tank. Still using low psi pump at tank in conjunction with this high psi pump. Also, have a Fitech EFI TB.
When my racing cap is closed it is tight, meaning it is not allowing any air into the fuel tank/system. Won’t this cause a vacuum in the system?
Not sure if my tank needs to be vented or not and if this bulkhead fitting should be used as a place for returning fuel or venting.
Steve
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Yes.....use the top of the fuel cell (AN-6 fitting) as the return line......and vent the cell thru the gas cap....with some AN-6 check valves so fuel can’t escape but will let air out....
Go to Summit and look for AN-6 fuel check valves