I have my dual fans installed on my radiator, now need to wire them up. I spoke with a local automotive elcetrical guy in the area. He says that I should wire it so one fan comes on with the temp sending unit to water jacket and other fan comes on with a pressure sensing switch to the dryer area of the ac. This way the fan will only come on if the ac requires it.
He says " Most people wire the 2nd fan to run constantly when the ac is on. That is not needed when your going down the road 60 mph. (thus his reasoning to wire a pressure sensing switch.
Can anyone point me to a wiring diagtahm that shows this type set up for a dual fan set up?