Anyone have any tips or a surefire method of wiring my 14" pusher?
I tried a writeup that Jon Powell did that involved using a blue relay from the skyline fuse box and wiring the fan and thermoswitch to the relay to trigger the fan coming on when the thermoswitch deemed it necessary.
Well, that didn't work, so I have a 12v source with a 30amp fuse and a toggle switch connected to the 14" pusher. So I have to switch the fan on and off manually.
Is there a method anyone else used to get the fan to come on automatically and go off automatically? I would rather not have to sit for a few minutes after my car shuts off while I let the fan go at it. I would like to avoid blowing fuses as the fan draws 11.5amps.
Thanks,Daniel
Wiring RB20 Fan?
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accel junky
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What exactly did not work with the thermo switch? That method is the method the R32 uses, and it should work well if done correctly.
Also, having your fan on after your engine is stopped is not necessary since you have of course removed the heat source by turning off the engine. It is a nice touch, yes, but not necessary.
The bulletproof method is to wire your fan relay to come on with the ignition. If you feel like you need a time delay after the ignition switch shuts off, then there is a relatively simple circuit you can use to do that.
Also, having your fan on after your engine is stopped is not necessary since you have of course removed the heat source by turning off the engine. It is a nice touch, yes, but not necessary.
The bulletproof method is to wire your fan relay to come on with the ignition. If you feel like you need a time delay after the ignition switch shuts off, then there is a relatively simple circuit you can use to do that.
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accel junky
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No, the thermoswitch is just that: a switch. Polarity does not matter.
Test the switch by putting it in a pot of boiling water to see if it closes (measure the resistance... it should be near zero when the temperature hits 90ºC).
The setup should have the thermo switch between the relay coil and ground. Then the other side of the relay (the contacts) are in series with the fan and battery as they are with the stock setup.
Test the switch by putting it in a pot of boiling water to see if it closes (measure the resistance... it should be near zero when the temperature hits 90ºC).
The setup should have the thermo switch between the relay coil and ground. Then the other side of the relay (the contacts) are in series with the fan and battery as they are with the stock setup.