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Old 07-22-2012, 08:36 PM   #1 (permalink)
EcoModding Apprentice
Join Date: Apr 2012
Location: Charlotte, NC
Posts: 130

TBD - '17 Toyota Corolla LE
90 day: 34 mpg (US)
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Thoughts on wheel covers...

What's the consensus, is it the reduction of the volume of air that passes through them that is cut off/reduced (i.e., closing up the spokes and sealing them), or that they are flat (which does the same of course, but with the added benefit that they are flush to the tire) that is responsible for the drag the reduction?

I'm contemplating modifying my existing hubcaps by simply filling in the "spokes" and insuring no gaps between the hubcap and the tire, but this won't make them flush.

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