Quote:
Originally Posted by 1project2many
GM has used the same 2 speed design in the past. BMW and Mercedes have done it also. One version of the GM fan resistor is P/N 94812213. You could also use a ballast resistor from an old points system. Your truck probably had one on the firewall.
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What was that resistor used on? It is showing 17.25 watts. If I take a 16" Summit fan and look at the amperage, it is 12.9 amps. So..
Wattage = Volts x amperage
154.8 watts = 12 volts x 12.9 amps
The Mishimoto 16" fan draws 7.18 amps. So..
86 Watts = 12 volts x 7.18 amps.
Wouldn't that resistor smoke in like 5 seconds, or am I doing something wrong?