Quote:
Originally posted by 82 GT
Low speed is useless.....forget about it.
You need the relay because of the high current it draws for the first millisecond of start up and then it levels out to about 40amps.
The taurus fan pulls about 2000cfm of air on high speed and about half of that on low which is not enough for even a stock V-8
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The 3.8 Taurus fan pull a whole lot more than 2000cfm. That might be at the LOW setting. It's capable of nearly 4000cfm on the high setting.
Click here:
http://www.dccontrol.com/kitsr1.htm
I have a 3.8 Taurus fan on my car with an FMS aluminum radiator (WAY overkill on my mild n/a motor, IMO) and when that fan kicks on, the temps drop in a hurry! I have it wired on high speed only. I suspect that low speed might be sufficient for a mild n/a motor depending on your radiator and climate. It might not work in South Florida, where I am.
Visit
http://photos.yahoo.com/miamifiveoh and click on the Car Pictures folder for some pics of my setup and a rough sketch of my wiring schematic.
My suggestion would be to go with a used 3.8 Taurus fan (or SN95 GT OR Lincoln Mk VIII) and get the controller from
www.dccontrol.com . You can pick up a used electric fan from any of the above vehicles for as little as $20 to maybe $75. Throw in the DCControl unit and you'll have a great setup.
The DCControl unit is great because it is a variable speed unit and eliminates the current spike when the fan first kicks on. The fan speed is continuously ramped up or down depending on temperature.
In any case, I HIGHLY recommend an alternator upgrade before going the electric fan route. Honestly, it was some of the best money I've spent on my car.
Good luck,