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Old 11-19-2011, 10:37 PM   #1 (permalink)
Cyborg ECU
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Join Date: Mar 2011
Location: Coastal Southern California
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Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 66.42 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
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A2 Wind Tunnel videos

Cd's postings today of video from the A2 Wind Tunnel, especially this one, got me curious and I decided to share a few I found by searching their youtube page. The first two are the more thorough, including shots of the aft areas of the vehicles. The tunnel does a lot of race cars, of course, but these are "stock," roughly.

A 1971 Dodge Daytona (beginning 2:10 they test back end and spoiler):
71 Dodge Daytona - YouTube

A 1971 Plymouth Superbird (front wheels at 1:45, beginning 2:14 back end):

Here are two series of tests on various Vettes, and I found it interesting to see how the hood interacts with the windshield on the various models:

See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.

Last edited by California98Civic; 11-19-2011 at 11:34 PM..
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Old 11-21-2011, 06:32 PM   #2 (permalink)
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You can see the circulation reverse flow into the louvered backlight area due to the separation as the slope 'rushes' to 22-degrees,then witness the 'jump' as the air re-attaches atop the extended trunklid.
It's about the only way to see the 3-D flow aspects of a body.
Thanks mucho for surfing for these videos!

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