[aerohead]

Originally Posted by ecoTex

Thanks Aerohead for the great picture. You and Thenorm*have inspired me to make some modifications to my current front wheel aero.

Do you think this would also help to vent warm air from the engine compartment?

Thanks again!*

I do think it will help.Short of dedicated exit ducts its a way to blend the exhausting air with the side stream.
Here's a link to Peugeot's VERA concept which also used the radii.
http://img156.imageshack.us/img156/5...7451700tr0.jpg