You're absolutely right, it is a real PITA when you have to worry about the Christmas tree and reaction time (if slow, reaction really kills you since the clock starts rolling with the green), then to have a rolling car adding to the difficulty of the launch is an extra unwanted layer to the routine.
Below is what I did to the handbrake to help these situations. The trick had served me well and all you need to do is pull it - preload the clutch while sitting on the 2-step - then let it go when needed (the hanbrake self-locking ability is still functional on the last two upper teeth). Call it poorman stage brake:
Do you think that would help or hurt driveline shock to the rear on an aggressive drag launch since it's disabling Haldex via the handbrake switch as opposed to having the F/R locked 50/50 via an aftermarket controller? I know next to nothing about AWD launching, but that'll have to change soon!
I can't remember Max. You running SP or Street Mod? Was just browsing the 2015 SCCA Solo Rules last night, and apparently SP rules require that the vehicle has an operating hand brake ( or foot brake ). So good thing that you kept it. SCCA sure has some strange rules....
"...I recommend books. People who don't know what they're talking about are less likely to write a book about the subject...."
I wonder if the RB kit for the R32 would fit the TT (massive weight savings over the stock r32 brakes)
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