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Title says it all.. I dont want to run a toggle switch want it turn key on was using coil for awhile but thats robbing voltage from my spark so dont want to do that...tried adding it to the running lights which would b fine but it robbs to much voltage from the bulb/makes it dim..
any ideas for a good key on=on/key off=off spot for the electric fans?? thanks for input
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If I were you I would not want the fan to be on at all times when the key is on any ways... I would use a fan controller with a relay and thermostat to adjust the temp I want the fan to come on . Then you can pull power directly off the battery .
For what it's worth, I'm pulling power for mine off of the starter solenoid battery terminal for a cleaner look.
I'm also in favor of a fan controller. If you absolutely don't want to do that, get a 50A Bosch type relay and a 50A self resetting circuit breaker. Any NAPA should be able to help you out. The interweb can teach you about relays.
I have the Flex-a-lite controller on my car with an old Cougar fan. Works awesome. Comes with the probe and all the wiring you need, very simple to install. It runs the fan from 60-100% depending on engine temp. It also will run the fan for a short time after you shut the car off.
yea one of the best things about a relayed controller is that the fan only runs when it needs to , running it 100% of the time puts a load on the system and causes the alternator to drag more , robbing you of a few horses.
I pull my relay coil voltage from an unused fuse slot in the fuse panel that is keyed on power. This does require running a wire thru the firewall which is no big deal with a small hole in the column boot.
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