Electric coolant pump control switch?? - Kawasaki Forum :: KawasakiWorld.com
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post #1 of 3 Old 01-23-2013, 06:40 PM Thread Starter
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Electric coolant pump control switch??

I have just fitted an electric coolant pump to a Busa race motor that i am just finishing off and i am looking for a 150 degree switch that it temperature actuated to control said pump, that I can fit in line behind the block after the thermostat housing and between the radiator. (thermostat is removed due to no feedback hose fitting on new pump housing. I already have a switch in circuit to manually control it, but would rather have some form of automatic control as I'n sure the jockey/s will forget and cook the newly built motor.
Found lots of temperature sensors but no switch. anyone know where i could get one from.

Regards Y'all

Ted Edwards

Speed kills play safe and buy a Honda!
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post #2 of 3 Old 01-23-2013, 10:06 PM
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I have no clue about a switch? Would a resistor work? I would dunk whatever thermo switch you are using in warm water. With a meat or candy thermometer, start cooking the water to see when the light bulb will turn on/off? There, you adjust the water until the light goes on/off is base temp, meaning, stable with the thermometer temp reading.

You now want to get a resistor inline with with the temp and the light going on/off is to mess with a bunch of resistors until you find this triggers the light on/off at 150°F. Sort of see the test light/heat/resistance R&D, if no one comes up with an auto switch? Got the concept?

Known to be at tech thread abuser. I like lying to animals too.
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post #3 of 3 Old 01-24-2013, 08:09 PM Thread Starter
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I looked at fan cut on/off switches and found plenty, including adjustable ones. but they only fitted into the radiators, so, rather than fabricate an inline pipe with the fan switch mounted into it I was hoping that someone else had fitted an electric water pump and had come across a system of controlling the water pump automatically/electrically.
I will probably fabricate an inline piece of pipe and mount an adjustable fan control switch or get another thermostat housing and mount a switch on that.
I did think about tapping off the coolant temp sensor to achieve what you were talking about, but was worried about loading the output from the sensor to the ECU and possibly screwing up the fuelling, the bike also has nos so fuelling as you know has to be pretty well perfect.

Thanks for your input

Regards Y'all

Ted Edwards

Speed kills play safe and buy a Honda!
Ted Edwards is offline  

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