Reply to "Electric water pump"

panteraturboMember

I do live in Victoria but originally from the states. The two larger pumps (CWA200 and CWA400) are designed to be used as primary cooling pumps for some BMW OEM engines like the Z4. The smaller ones are I think typically used as air/water intercooler circulation pumps. The nice thing about these pumps is that they have all of the high current circuitry built in for speed control. You feed them a 12v high current wire, ground, and a single low current wire feeding a square wave signal with varying duty cycle. 13% duty cycle is minimum speed and 90% duty cycle is full speed. This is easily configurable in most aftermarket fuel injection computers.

1/10/1511:07 PM

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