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Old 06-03-2011, 10:20 AM   #3 (permalink)
JasonG
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Join Date: May 2009
Location: Charlotte NC / York SC
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05 DMax - '05 Chevrolet 2500HD
90 day: 18.48 mpg (US)
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The issue with fans is they need to be fairly big.
Additionally the power to run them has to come from somewhere.
Kart racing tried this for a while. Really added downforce in their application. Problem was the added weight of a seperate motor to run the suction fan. FWIW, they scrapped the idea.
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I can't understand why my MPG's are so low..........
21,000lb, 41' Toy Haulers are rough on FE!
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