Quote:
Originally Posted by perral1
Neither. Launch Control is where the DCT feathers the clutch for you in a way that gets (arguably) the best acceleration possible. You go through a sequence of steps to start it, put it in sport mode, turn DSC to DTC, etc, then press down on the gas while holding the brakes; the engine will hold at some RPM (I think it's 4500, but on the E60 M5's SMG they cut it to like 1500 in the US vs 4500 in europe for some reason, so I dunno that for sure). Then when you let off the brake the transmission will feather the clutch, allowing for some wheelspin but not as much as if you dumped it, until you get going. I'm pretty sure it'll also upshift for you at redline, based on the Z4 DCT's owner's manual.
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Thank you for your info! So besides the launch control, does our 135's N55 engine has the over-boost mode that can temporarily pump up the torque?