View Single Post
      05-15-2014, 08:56 AM   #37
bradleyland
TIM YOYO
United_States
1350
Rep
3,319
Posts

Drives: 2013 M3
Join Date: Jun 2010
Location: Vero Beach, FL

iTrader: (0)

Garage List
Quote:
Originally Posted by aspensilver View Post
Interesting basiluf -- isn't that surprising though? How can a properly done launch control be slower? Is it that the built in launch control is automatically doing something that can be done even better by a skilled driver? I definitely don't understand much about launch control.
Good to hear though that the times aren't too launch control dependant
An optimal launch spins the tires just a tiny bit. Too much power and the wheels will spin, losing traction. Too little power and you underutilize the available traction. That was the obvious part.

The thing to keep in mind is all road surfaces are not identical. That I'm aware of, the launch control programs in these cars are not all that sophisticated. They use a base set of parameters for each launch, which involves an implicit assumption about available grip. Depending on the road surface, those assumptions may be incorrect.

In this way, a skilled driver is able to deliver better results under some conditions. Where launch control excels is in consistency. Humans don't make very good stopwatches or power regulators. We rely on our senses for real time feedback, and our reflexes are woefully slow compared to a computer's. This means that while a human may be able to eek out a better 0-60 time, the computer will deliver more consistent 0-60 times. For your average Joe, launch control is the way to go.
__________________
His: 2013 ///M3 - Interlagos Blue Black M-DCT
Hers: 2013 X3 28i - N20 Mineral Silver / Sand Beige / Premium, Tech
Past: 2010 135i - TiAg Coral Red 6MT ///M-Sport