Originally Posted by Tcc1999

At L/S not too certain b/c I wasn't watching the speedo - 130's anyway and not very consistently. At TH, however, on three, only three ocassions I nailed the final turn (presents like a double apex) going into the straight and the car simply took off. Typically, after I butcher that last turn, I can only get up to about 125 to 135 depending on how late I want to break (how brave I feel) going into turn 1. A buddy of mine who races SCCA had no problem hitting 140 (in my old S) in the straight at TH but he brakes REALLY late into Turn 1. It's really amazing to see what these cars can do when your a passenger with someone who has lots of experience!

Originally Posted by last911

The small deployable spoilers used on the 911 since the 964 generation in 1993, don't actually produce "downforce" in the truest sense of the word. What they due is "spoil" the air stream as it comes down the rear window and off the car. The backwards wing shape of a 911 that you noticed produces a low pressure area at the rear af the car. This combined with high pressure beneath the car prices lift and lightens the rear axle load. By breaking up the air flow, the low pressure area is reduced, reducing or negating the lift. So is that adding downforce? No, it's just reducing the lift affect.

Now, on the 911 race cars you mentioned, they do run very sizable rear wings to increase high speed down force and grip in fast corners. They also create a lot of drag. But the speed and stability gained in the high speed corners more than offsets the reduction in top speed on the straits.

Hope you find a 911 to your liking. They are fun, somewhat quirky cars with a ton of history. I recently traded a Ferrari F430 to get back in the dependable, properly engineered 911. "You can sleep with a Ferrari, but you will more likely marry a Porsche".