Quote:
Originally Posted by duxthe1
That specific fan isn't easy to control. It has 8 speeds and is controlled by a 3volt plusewidth signal. 10% PWM = off, 20% = first speed, 30% 2nd speed, ect until 90% =100 % fan speed.
I built this fan into a 124 fan shroud and use my PCS trans controller to provide the PWM signal v/s coolant temp. It works really, really well. The temp needle never uncovers the top of the 8 on the 80C marking.
Buying a PWM standalone fan controller would be worth it to use the 600W fan. The viscous fan clutch setup on these cars is absolute crap.
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How did you do your set up? Also, is it possible to just wire in the fan to temp switch and a/c pressure switch and ditching the control unit? Do you know what the 4 wires are for? I know + is red and orange or brown is negative, but what is the black and white one and the blue and yellow one used for?