on tarmac i just try slip it slightly and go. But it broke when i hit the limiter in first tonight. Not when i launched it.
Momentum of the car accelerating Vs the engine trying to slow down (due to hitting limiter!) and the gear multiplication, would prob be a major cause of this... Think of the forces going through the car! At these power levels (500+) and the torque your car is producing, something somewhere has to be the weak link