Quote:
Originally Posted by PbFut
Electric fans put the original electric system into fits unless you up the alternator and rework the battery gauge wiring. I put electric fans on my truck but now realize it was not worth the effort. Is it possible the serpentine system you are using is spinning pump and fan too slow? Can you reduce the pulley size on the water pump increasing the pump rotation per engine rpm?
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All wiring in this truck has been replaced. I have a PowerMaster 160 amp alternator. The 160 amp alternator without using the the electric fans is now an overkill. Eight gauge wires ran directly from the battery to the electric fans via relays. Alternator output cable is six gauge.
The water pump pulley is the smallest available. Any smaller and the pulley would rub on the water pump housing.