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Old 03-30-2009, 12:25 PM   #3 (permalink)
Bicycle Bob
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Join Date: May 2008
Location: N. Saskatchewan, CA
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Appliance White - '93 Geo Metro 4-Dr. Auto
Last 3: 42.35 mpg (US)

Stealth RV - '91 Chevy Sprint Base
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You have to get air through the radiator to use all the surface area it is designed to provide. Adding turns and reducing pressure differentials will reduce air flow and require power from the fan and engine. To minimize losses, use ram air in and low pressure extraction, with a continuous smooth duct, and control the size of the entrance, reducing it in winter.
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