Re: Cooling Fan Manual Override? Can it be done on an xFire?
Short of tying the fan to the 12 volt source, which I do not recommend for the street, you can add a resistor across the thermal sensor to speed up the fan for racing events.
The paralleled resistors make the computer think the engine is hot so the fan is sped up to cool it back to normal. I found that a 330 resistor is about right to do the job. I even sent a resistor to one guy Steve to do it for his car.
You switch it in when you want it and out when you dont, using thin wires cause its a sensor. I like it and its not too extreme to damage the fan. The fan gets a variable voltage from 4volts and up as needed.
Chillin Woody
The photos below should be readable. I did not clean this up as I wanted to get it out and with the pace Iam doing things a clean drawing means something else goes missing.
I have a bunch of resisitors and I can return one to your self addressed stamped envelope if there are no radio shacks near you? THe postal police require two stamps 42 cents cause the letter is a tiny bit thicker and thats extra, see you learned something else. Its still below 1 oz, just thicker, go figure. Woody