Quote:
Originally Posted by serialk11r
The roof fins caught my attention. I wonder what they do. The standard 911 body should have fully attached airflow and minimal trailing vortices over the rear.
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I agree about the roofline. By 1993, Porsche had taken 6-degrees of slope out of the 911's rear since it debuted in 1965. Water-cooled, and with a front radiator, it no longer relied on separation-induced downwash to get cooling air.
The black car shown does not have the fences, only the white car.
I've driven the old 911 S on dirt roads in West Texas. It WILL oversteer, although judicious use of the throttle makes for uneventful power-steer 'drifting' and big smiles.
On a wet race course, and at speed, should one loose traction, and over-rotate, the roof fences would kill some unwanted induced lift, and perhaps allow the owner to race another day.