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Old 09-05-2011, 05:20 PM
cypress cypress is offline
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Join Date: Jun 2010
Posts: 180
Quote:
Originally Posted by lsmalley View Post
I think my aux fans cut in at 105°, but is there a way to install a mechanical fan that spins with the engine instead of a viscous fan?
Your viscous fan cuts in at 105°c & your aux fan at 120°c, that's where the problem lies I believe. So a lower dual temp switch that turns the fans on sooner would be the solution.

A mechanical fan that spins with engine does not make sense to me. Fan spins at high engine rpm when cruising on the freeway, but you don't need it. But when idling or in stop & go traffic when you need it the most, the fan spins at low rpm.

Also you'll loose some power & gas mileage.
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