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Old 12-14-2009, 04:16 AM   #3 (permalink)
orange4boy
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Join Date: Aug 2008
Location: The Wet Coast, Kanuckistan.
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The Golden Egg - '93 Toyota Previa DX
90 day: 31.91 mpg (US)

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90 day: 57 mpg (US)

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Quote:
Actually, Orange4Boy couldn't find a flat pizza pan, so he installed a slightly concave wok
Will wok for wheels. Who brought the soy sauce?

I have been thinking about this too. I have a set of the pop in style of moonies on the van and was never quite satisfied by the way the wheel looks in section. The tire has a bulge that returns to the rim, then the cap bulges again so you get three "curves" the air has to travel over.

When I tried my 18" platters, it made more sense that the curve continue where the tire leaves off

I think of it like the sugar cube-egg analogy. A tire is a blunt sugar cube rectangle in section. If you round out the sides, you are theoretically reducing detached flow which should reduce the wake. You can go from the cube up to as big as the egg and still have lower drag in that example.

I would love to be able to see the air flow pattern around my wheels to see the angles.
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