Originally Posted by My new car
Thats crazy fast by the way willwren. Mine doesn't feel very stable even at 100, I can't imagine another fifty miles an hour. Scary.
The stability changed drastically with my new tires. The old Dunlop D60'* were causing my front end float at 125 originally. With the tires being the only change, that improved by 10-15mph at least. I can only guess that the profile of the tire changed as the tire spun. Centifugal force made the tire larger as the sidewalls stretched. This raised the front of the car enough for the oncoming air to lift the front.