Quote:
Originally Posted by AusF20/F48
You also need to be aware that there is only a certain number of Launches allowed to be performed by the driver (controlled by BMW in the Engine's management systems).
It is also dependent upon which engine is being used.
It is something to do with the warrantee.
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Elaborate please. References if you can. Never heard or read anything to this affect, and doesn't seem true or correct.
The manual states you must not do repeated launches and need to wait a certain amount of time before repeating a launch, to let temps cool down to norm. Due to the stresses and strains on the gearbox, extra heat generated etc.
Basically, all launch control is, is the engine limiting engine RPM to 2000, and the brake on the wheels wheels stopping the gearbox from moving through the drive train. The result is constant slip on the torque converter unless I am mistaken. It's really not good for the oil in the gearbox, and you must not hold the car on the launch for more than x amount of seconds (is it 5 seconds or 10 or something).
Cheers,