Joe (zyxt)

Very cool wind resistance test of a Dodge Ram pickup in various configurations. (tailgate up, down, remove, tonneau cover, camper shell, etc.) Surprising results!

The one thing I would've like to see were some measurements of resistance of all the above, but with little wings added on to the "seperation" edges, where the wind leaves the surface of the truck. Those are big turbulence spots, and those little wings can do wonders.

I would be interested to see a test of an A4/S4 Avant, with and without the little rear wings you can get on them. (like my Zender wing, or the option oem wing) I wonder if it would reduce the already low drag coefficient even further.<ul><li><a href="http://mars.acnet.wnec.edu/~ehaffner/did.htm">http://mars.acnet.wnec.edu/~ehaffner/did.htm</a</li></ul>