<VV> Electric pump install
Sethracer at aol.com
Sethracer at aol.com
Wed Dec 19 10:32:56 EST 2007
In a message dated 12/19/2007 4:57:25 A.M. Pacific Standard Time,
kenpepke at juno.com writes:
A person could use up two batteries and melt the starter long before enough
oil could be pumped through the engine to fill collapsed lifters.
D. Conclusions:
If someone really wants an electric fuel pump it would be best to:
1. Adapt an 'in tank' unit ... and don't forget the overflow return system.
2. Mount an aftermarket unit as close to the engine as possible even though
the instructions recommend placing it by the tank.
3. Either way it should be wired with a switch designed to sense engine oil
pressure after start up.
Ken Pepke
Ken -
On a street Corvair, I agree with all of your recommendations, depending on
where the "As close to the engine" is. On my race Camaro, a 1994, I installed
a low pressure in-tank pump to replace the high-pressure EFI pump, then an
outside "performance" pump, mounted in the rear near the tank and all new AN
lines to the front mounted Holley, with no return, but a reliable pressure
regulator. All of the items, pump, ignition and starter are separately
controlled. This allows me to fill the carb with the electric pumps, bring up pressure
in the motor via the Accusump, crank the motor over a bit to open the
passages to the crank and rods (solid lifters), without the ignition on. Then start
the motor on the first turn. I kill the motor, after mechanically closing
the Accusump handle, with the complete cut-off switch. I suppose the oil
pressure switch could be added to disable the fuel pumps in the event of an engine
stall. Perhaps a dual electric feed for the pumps with a momentary switch to
fill the carb(s) and a oil pressure dependent switch for running. I will have
to design the wiring circuits for the new Corvair soon. I will be adapting
some of the left over Camaro stuff. - Seth
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