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03-27-2007, 02:00 PM
Marty Kocse wrote:
The reason for this is actually quite simple. Mid and rear engine cars have the tendency to understeer when the throttle is applied. That car has very large rear tires and quite small front's in comparison like a 911. When on the throttle especially hard and abrupt like I image the way he was doing it will unweight the front of the car effectively shrinking the already small front tires contact patch. That equals minimized front grip. When you try to turn the car it will not. The correct procedure is to "breathe" off the throttle and give the front tires back some grip. Even better is to be more judicious when you apply throttle in the first place. This will balance the car better and allow you to turn as well as accelerate the car. If you lift too abruptly you get the notorious 911 pendulum effect. All the weight shifts to the front. Front tires have lot's of grip and the back end goes sailing around. A front engine rear drive layout is less prone to this but exactly the same thing can happen in both scenarios given how abruptly the controls are used. The reason that both the mid and rear engine layouts work extremely well on the track is just because of the enhanced traction you get under acceleration. In other words they come off corners way hard!!! Once you have them pointed in the right direction you can pick up the throttle almost immediately. I can say for the time I had my 996 I never had the rear sliding more than the front. Always nice and controlled 4 wheel drifting as my car had no PSM. Always had great drive out of corners. That is until the motor scattered itself with hardly without many miles on it. That was fun.
Anyway, he probably could have been going 5 or 85 and using the controls as he did would have resulted in the same thing. Only the intensity of the impact would have changed. Luckily it doesn't look like he was injured.
Steve W. Hoagland
Quote:Quote:It seems that the ultra-high performance ferrari's have a tendency to wash out the front end at relatively low speed.
The reason for this is actually quite simple. Mid and rear engine cars have the tendency to understeer when the throttle is applied. That car has very large rear tires and quite small front's in comparison like a 911. When on the throttle especially hard and abrupt like I image the way he was doing it will unweight the front of the car effectively shrinking the already small front tires contact patch. That equals minimized front grip. When you try to turn the car it will not. The correct procedure is to "breathe" off the throttle and give the front tires back some grip. Even better is to be more judicious when you apply throttle in the first place. This will balance the car better and allow you to turn as well as accelerate the car. If you lift too abruptly you get the notorious 911 pendulum effect. All the weight shifts to the front. Front tires have lot's of grip and the back end goes sailing around. A front engine rear drive layout is less prone to this but exactly the same thing can happen in both scenarios given how abruptly the controls are used. The reason that both the mid and rear engine layouts work extremely well on the track is just because of the enhanced traction you get under acceleration. In other words they come off corners way hard!!! Once you have them pointed in the right direction you can pick up the throttle almost immediately. I can say for the time I had my 996 I never had the rear sliding more than the front. Always nice and controlled 4 wheel drifting as my car had no PSM. Always had great drive out of corners. That is until the motor scattered itself with hardly without many miles on it. That was fun.
Anyway, he probably could have been going 5 or 85 and using the controls as he did would have resulted in the same thing. Only the intensity of the impact would have changed. Luckily it doesn't look like he was injured.
Steve W. Hoagland