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Old 02-19-2012, 10:12 PM   #22 (permalink)
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Oh cool ! Thanks for doing the tuft test. I've been wondering for years about the A pillar vortex on that particular car.

The tufts that you had look a little long. I used ones no longer than 3" or so and spaced them so they wouldn't tangle on my test.
I suspect having the tufts any longer causes more flutter than there should be and this can be confused with turbulence in that area.

You can clearly see the A pillar vortex on my car compared to yours :

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