electric fan??
i got an electric fan out of a junked fwd car, my question is though, do i want this on a toggle switch? how often does it have to be on. it is supposed to be on anytime the car is on? or do i watch the temp guage and then turn it on..
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RE: electric fan??
get a probe. that way the fan is only one when needed. i got mine for $35 at pepboys. its preset for 185*. my thermostat opens at 180 and if the water gets to 185 the fan turns on
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RE: electric fan??
On the harness that goes to the ignition coil on your car, I think the middle wire gives a steady low voltage when your key is in the II position, it is basically just a message that the car is on the "on" position, you can tap the switch to that wire, use a multimeter to see which one it is. Don't worry, it would not affect your ignition coil because the switch requires very little power, only enough to power a few small magnets to switch the relay to the on position so it is negligible. That will have your fan on whenever the car is on. If you want to go the thermostat route, that is prefered, my way is the lazy way.
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RE: electric fan??
i like the sounds of "lazy way"
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RE: electric fan??
you need a bosch relay... 85=block grounded temp switch., 86/30=battery, 87a=fan pos.... and put fan neg on chassis ground..
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RE: electric fan??
alan would know how to answer this thread :)
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RE: electric fan??
87 AMPS??? I think that's a little overdoing it. As long as it's a single motor fan, a 30/40A standard relay is fine.
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RE: electric fan??
A 35/40 amp relay is not enough!!
Here is a good article on how to wire one up with diagrams http://www.fordmuscle.com/archives/2...an/index.shtml |
RE: electric fan??
i was just gonna run a neg and pos from the fan to the battery but have a toggle switch in the middle of the pos wire.... wouldnt this work?
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RE: electric fan??
no, because you will definately melt something, you need to use a relay...
ORIGINAL: Demon_Mustang 87 AMPS??? I think that's a little overdoing it. As long as it's a single motor fan, a 30/40A standard relay is fine. 85=ground 86=power 87=closed output 87a=open output 30=input 85/86 provide the relay power whatever is hooked to 30 will come out of 87 when the relay is off and 87a when the relay is on.... |
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