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Old 04-14-2012, 12:55 PM
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compu_85 compu_85 is offline
Cruisin on Electric Ave.
 
Join Date: May 2008
Location: La Conner, WA
Posts: 5,250
Quote:
Originally Posted by Yak View Post

In Arizona, I'd definitely look at an install that is ignition switched, eg, when the underhood temp is 140 F AND the ignition is on, then the Aux fan runs at least at low speed. I suspect that is easily and cheaply do-able with one of the Summit Racing kits. This type of mod should not affect any of the safety cut offs or function of the OE climate control.
This is an excellent idea... in fact to hook it up all you need to do is parallel the switch with the pressure sensor. Have something like this hooked up on my car:



I built an adapter harness which plugs between the sensor and the car harness, so no mods were needed for the car harness. If I ever decide to remove it I just unplug it.

Note the sensor with the 2 spades on the back is the too low / too high pressure cutout switch, which is wired in parallel with the compressor clutch. The red switch with the wires coming off of it with spades on the end is the 250PSI switch for the aux fan(s).

-J
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