joegr
Dedicated LVC Member
The fan, say it's not hot and I save amperage and power. When the needle creeps, I flip a switch and cool it down... or is that a bad idea?
No. You don't want to do that! When the temperature needle starts to move after the half-way point, the engine is already overheated! There would be no way for you to tell when to turn it on. Do like every thing else, and put a thermostatic controller on the fan. Set it to come on if the return water temperature from the radiator goes over 180 or so. (might need to set it lower than that)