GT2 RS cheats death at the Nürburgring
#1
Lexus Test Driver
Thread Starter
GT2 RS cheats death at the Nürburgring
Rear axle lift + Porsche RR = game over. We've seen so many GT3s and even Cup/RSRs eat it at this corner (Brünnchen). Hey, no harm no foul and at least it's out there being driven hard like it's supposed to be!
Available in HD, click here for the direct link to force HD: http://bit.ly/dEHkpP
http://www.youtube.com/watch?v=0k3_kdbXyCA&hd=1
Available in HD, click here for the direct link to force HD: http://bit.ly/dEHkpP
http://www.youtube.com/watch?v=0k3_kdbXyCA&hd=1
#4
Lexus Test Driver
Thread Starter
#7
Lexus Test Driver
Thread Starter
This is due to lift-off oversteer - downforce from a spoiler isn't going to counteract the huge forward weight shift from lifting off the throttle, especially when the engine is behind the rear axles and that weight that's suddenly no longer there is supposed to be providing the grip to the wheels driving the car forward.
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#9
Lift off oversteer can occur just the same with an AWD car, you just don't want to over-correct and eat a wall...
http://www.youtube.com/watch?v=F_Yn3mNnvW4
http://www.youtube.com/watch?v=F_Yn3mNnvW4
#13
Lexus Test Driver
Thread Starter
As I mentioned in my last post, a driver that is on the throttle (i.e., car accelerating) and suddenly lifts off the throttle (car stops accelerating) will cause a large and abrupt weight shift towards the front of the car, which takes weight off the rear tires causing them to have less available traction. Such weight shifts are very undesirable during cornering, as the loss of rear traction can result in dramatic oversteer.
In fact, shifting during cornering is generally thought of as undesirable even in dual-clutch/automated manual/clutchless vehicles, despite the very short engine retardation time compared to a complete throttle lift off.
#15
Lexus Fanatic
Good chance the car in video was running without electronic nannys in operation, or in other words as equipped "Porsche Adaptive Suspension Management (PASM), unique anti-roll bars, specific engine mounts and recalibrated Porsche Stability Management (PSM), whose stability and traction control functions can be switched off individually".