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      02-15-2016, 07:55 AM   #22
MKSixer
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Drives: 2015 BMW i8, E63 M6, 328d
Join Date: Jun 2015
Location: Southeast United States

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Quote:
Originally Posted by MalibuBimmer View Post
Clean side wings seem to mean something different to me -- like the airflow is there and the down force is a byproduct (and an intended one).

Anybody got a wind tunnel?
You already have access to one.

Go to a self service car wash equipped with a high-pressure water nozzle, stand in front of the car and spray down the cars longitudinal axis. Aim down the sides, dead center, as well as dead center moving the nozzle in a 30 degree horizontal arc from dead center.

If one does this on a reasonably still day, one can see how the air will flow over the vehicle. If you take a friend and don't mind getting a bit wet, you can see it from the rear and observe how the airflow detaches from the body.
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