Quote:
Originally Posted by Richbot
Dsc cuts in well below the slip angle needed to get the most out of a tire. A lot of slide or slip is slower, but a little bit is necessary to get to the last few seconds per lap of a car's true potential. Smooth inputs are overrated, by the way. The only thing that matters is the loads the tires sees. If that means you have to swing the wheel back and forth wildly, then so be it. See every in-car video of a fast driver ever. Smoothness, and timing, are probably most important on throttle application, but the dsc system will still pull power and brake a wheel before you get to max acceleration potential in a turn, because it starts to detect the yaw caused by power application and cuts in before the yaw can get worse, it is designed to be proactive because a reactive only sysytem wouldn't catch a lot of it.
MdM has a higher threshold for this but that has its own problems as it tries to trail brake the inside wheels into every corner, masking poor inputs and worse, cooking brakes.
If learning is the primary goal, Switch it off. If you're just out there to have a good time and don't want to lose it, leave it on but your learning curve will not be as steep and it could cause some false starts.
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Interesting, I had an E92 M3 but never tracked it so I never got to feel the DSC kick in. I've heard (and felt) that the Porsche version of DSC (TC/SC) is a lot more liberal than DSC in a BMW and doesn't get in the way as much. I noticed that it comes on when I'm not smooth, pinch turns, or don't let the wheel unwind. It does flicker on certain spots of a track no matter how smooth I am (primarily turns with elevation changes). You can turn SC off and keep TC on with the .2 997s which is probably equal to Euro MDM. I sometimes turn the nannies off the last session of the day as there's less people and I won't be setting an personal bet times.