Reply to "Electric water pump"

bigblockfanMember

Gunner,

Another option is the Australian-made Davies Craig electric water pump. I have been using their EWP115 and thermostatic controller. At 30.38 gallons/minute with my 550hp+ Ford Racing Big Block I have experienced no boil overs or high temps. This includes stop and go traffic in 100 degree F ambients, trips over 100 miles at 80+ mph and some high speed running for short bursts. They recently introduced the EWP150 which flows 40 gpm.

I mounted my pump directly behind the radiator (see picture).

The big advantage is that coolant flow rate is not dependant on engine speed. There is no compromise in having adequate flow at idle and not sucking up too much power at high engine speeds. In addition, you can continue to run the pump after the engine shuts down, helping to prevent boil over.

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