[D CHOI]

What's the best RPM to launch the car at and at which point do you floor it to prevent excessive wheel spin? Also how does this vary from all the modes?

[SeanWRT]

Originally Posted by D CHOI

What's the best RPM to launch the car at and at which point do you floor it to prevent excessive wheel spin? Also how does this vary from all the modes?

There's no correct answer, all dependent of tyre and road condition. Normally 3k would be optimal when tyre is warmed up.

[D CHOI]

Originally Posted by SeanWRT

There's no correct answer, all dependent of tyre and road condition. Normally 3k would be optimal when tyre is warmed up.

When do you know if tires are warmed up and how long does that take with nice weather conditions?

[atxsk8r]

[D CHOI]

Originally Posted by atxsk8r

That was the video that made me create this thread!

[atxsk8r]

Originally Posted by D CHOI

That was the video that made me create this thread!

LOL

[Dabozo]

Originally Posted by D CHOI

That was the video that made me create this thread!

He doesn't mention an exact rpm in the video because it varies greatly.

-tire type
-tire wear
-road condition
-weather/temperature
-tire temperature
-car set up (mods)
-etc etc

[XutvJet]

It's all in your foot work with respect to the right amount of clutch slippage and throttle application.

Contrary to what many believe, launching at a higher rpm, rather than lower, typically nets a better launch, but you need to be in tune with how much is enough/too little with the pedals. Yes, these cars technically can make max torque at sub 2,000 rpms BUT that power is based on full turbo load and maximum boost. These cars will not make much boost (if any) right at launch and they do not make full boost 1st gear. Launching a manual on street tires is a fine line between a little spin and just on the verge of a bog. You'll know you got it right when the tires tramp a bit in 1st.

Granted the M2 has a bit more power, I find launching my stock 6MT M235 to be rather easy, but maybe it's from my years of drag racing FWD, AWD, and RWD manuals at the strip. This is what I do with my M235:

1) DSC Off selected

2) Put the car into 1st and release the clutch just until it's about to catch.

3) Bring the revs up to around 3000-3500rpms and make them bounce a bit.

4) When it's time to go, release the clutch just enough that you feel the car start to roll. Once you feel it rolling, release the clutch fairly quickly while feeding the gas to keep from bogging. The rpms need to stay above 3000rpm or so and the slight roll helps plant the tires rather than shocking them with an immediate load from a standstill. The higher launch rpm and clutch slippage help create some load on the turbo thus getting into boost quicker. You cannot go full throttle at first and do not release completely because you're going to need to feather it a bit. Once it feels like it's hooking, then you can release the clutch fully and go full throttle. All this occurs in the first 2 seconds or so of the launch and only midway through 1st will you be able to use full throttle.

If the car bogs, then either adjust your clutch release style (i.e., you may be releasing it too quickly and the tires are hooking hard) and/or consider upping your launch rpm. If you blow the tires off, then reduce the launch rpm down a bit and don't release the clutch as rapidly.