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Old 09-05-2011, 10:15 PM   #17 (permalink)
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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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Originally Posted by Floordford View Post
I had an idea of how I would do it, I just wanted to hear your thought.

My idea was bladed spokes that grab air from the rims face and pull air toward the back of the rim. But then have an aluminum panel to keep the air in the rim. And then have a 2" port attached to a hose and channel the air to the back of the car to break up the vacuum.
Right track, but you will need a larger air passage.

Breaking the vacuum has shown benefits before.
This company for example :

NASCAR uses a slight propeller shape to their rims for this same reason :

Its hard to see, but there is a slight pitch to the spokes.

I can't understand why my MPG's are so low..........
21,000lb, 41' Toy Haulers are rough on FE!
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