I haven’t done any testing in terms of the mods, but I have just finished doing some amateur tuft testing. First time doing it! I waxed up the body of the car and removed all aero mods, then went ahead and tested. Results seemed very good. Airflow the front of the car is great, and flow at the rear is so-so; as I expected.
What was unexpected is the side-view mirrors messing up flow over the windows so terribly. Yikes! You can really see how much it derails the attached flow over the sides. Flow over the rear is confusing. At 60 km/h or so, the tufts point straight back in proper alignment, but at 80+ km/h the middle-base of the rear windshield seems to have a separation bubble. I assume that comes from the transition to the trunk-lid. I think I can see some turbulence behind the rear wheels as well, for the bumper might be shrinking inward a bit too steeply given it’s short length.
So overall? Flow seems quite good. The rear end seems rough, the wheels rougher, and the mirrors terrible. I don’t really see any other issues beyond those, so that’s good.
To the drawing board!
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