[Sven7]

Originally Posted by NachtRitter

Partial kammback I'm not so sure about... I'd looked at this thread closely: http://ecomodder.com/forum/showthrea...etta-5976.html. Seemed like the flow tests showed little benefit for a partial kammback. Or at best it was inconclusive.

It would take you about a half hour to tuft the rear window and determine if there are gains to be had. CFD is great but it can't replicate the real world. I don't think he ever compared the models to the real world to verify the results... but then I didn't have the patience to browse through 25 pages of CFD

Go ahead and test it. You could set it up at night and look at the tufts on the way to work the next morning. Since it's on the glass you wouldn't even need a camera! Just remember which tufts showed separation.