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Old 09-28-2012, 04:22 PM   #47 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
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Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 54.46 mpg (US)

Appliance car Mirage - '14 Mitsubishi Mirage ES (base)
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Quote:
Originally Posted by myrefugeisintheLord View Post
Preferably, I would have it look like an upside down kamm, that is closed in. But trying to keep a 0 degree diffuser angle, it was easier to cut it off sharp which also helped to keep the coro in place to keep the ~0 degree angle.
I think that's what Otto was asking about: why did you aim for 0 degrees? An upward taper is more ideal -- better to make the rear of the pan upswept, if you can. Not too much, or too abruptly. (The extent of the curve/angle depends on how much distance from the beginning of the upward taper to the end of the belly pan.)

EDIT: green line shows a better "box" - upswept and extended further aft to gain more length for tapering.

(PS: It's OK to want to kick people like me for offering suggestions so late in your progress. )

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