08-10-2010, 04:44 PM
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CC Member
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Join Date: Feb 2007
Location: Colorado Springs,
CO
Cobra Make, Engine: Backdraft, supercharged Coyote
Posts: 2,457
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Not Ranked
A lot of this is simple math. A mustang radiater has a surface area of about 351 square inches. A 16" fan covers a surface area of about 201 square inches.
If you simply attach the fan directly to the core with nothing but a gasket, it will only pull air through about 67% of the core.
If you mount the fan to a good shroud, it will pull air through 100% of the core. It will also be slightly more efficient because of the ventouri effect.
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