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Old October 15th 2011, 07:32
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Gerrelt Gerrelt is offline
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Join Date: Sep 2010
Location: the Netherlands
Posts: 113
Nice test work Jadewombat!

Like Wally said, you're talking about two different things. Your tests show how the aiflow is over the fender.
The slots in de fenders are for relieving air "pressure" in the wheel wells.

BTW, the airflow shouldn't be attached all the way to the bottom of the fender. Turbulence behind the fender is good, that means the airflow is de-attached from the fender. The angle of the rear of the fender is too steap for good airflow.

I think you could improve the aerodynamics of your beetle by installing wheels that fall inside the fender. Or install wider fenders. Your wheels stick out a couple of cm's, that can't be good for aerodynamics.

Again, nice work on the wool tuft test! I hope more people do this!
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