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Old 07-20-2010, 09:40 PM   #8
turp mcspray
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Join Date: May 2007
Location: Rapid City South Dakota
Posts: 2,359
Re: Flex Fan vs Clutch Fan

Several years ago, one of the magazines did a dyno test of several differant fans. The clutch fan was the hands down winner in airflow, as well as horsepower loss.
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