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Author
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Topic: Electric fan wiring with battery relocation
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BayAreaNotch
New Member
Member # 12248
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posted
 
 
I recently did a motor swap on my notch. I cleaned up the engine bay and decided to relocate the battery to the trunk. I upgraded from clutch fan to electric. I have a switch that I use to manually turn on the fan with a 30 amp fuse. Right now I am getting power from the solenoid in the engine bay and I grounded the negative to the body. (I sanded the area to bare metal). Right now my car starts over heating while in town. I pulled the black magic fan and I connected it directly to a battery and it sounded like it has twice as much power when I connect it directly to the battery. Is it possible that it isn't getting enough juice with the ground wire bolted to the body and positive to the solenoid.? Should I rewire my fan directly to the battery in my trunk? Any tips and adive will be greatly appreciated!
Posts: 4 | From: Vallejo | Registered: Aug 2012
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Martinna
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Member # 12493
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posted
You probably have a lossy connection somewhere. Maybe a bad ground. Maybe a bad connection. Run the fan and feel around things like the fuse holder, does it get warm? Any connection that gets warm after running the fan for a few minutes means that connection is lossy and costing you power. Do you have a volt meter to measure the voltage right at the fan?
Posts: 1093 | From: City | Registered: Oct 2012
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4IDFOX
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Member # 9921
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posted
Most likely your switch is not up to the task. High amp accessories work best with a relay. Wire in a relay and let the switch turn the relay on and off. Use the switch on the ground for the relay is best.
Posts: 375 | From: Redding CA | Registered: Apr 2010
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