Markus

Thanks for posting the numbers

I've always wanted to see some real aero data for a Porsche aero kit, they always claimed more downforce and now it is proven.

What is interesting is the S's drag numbers are exact the same as the 997GT2 (also measured by SA) despite the GT2 having the big rear tyres and spoilerage yet the GT2 has even more downforce @ 9kg front and 29kg rear

The 997tt.1 had its aero measured by SA at:

Cd 0.29

CdA 0.59

F lift 8kg

R downforce 12kg

What are the differences on the 997.2 which hit the drag numbers so badly


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2009 997 GT2