Taurus fan on Champion radiator

Mad Dart said

Pretty sure the Taurus fan draws about 40 amps on full tilt boogie. Your stock alternator probably had a stroke trying to keep up!

I hope you are using Relay's and pulling power straight from the battery. If you are going through the bulkhead you are asking for major problems.

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True... but I think the fan actually draws more like 25-30 steady amps once it is running. I have an upgraded charging system along with the bulkhead/ammeter bypass/upgrade. I also converted the old amp gauge to a volt meter.

I noticed while pulling the electric fan assembly out of the Contour that it had a 70 amp relay that it used.