i assume u mean for like a drag race run???
go too 5500-6000 rpm...let off the clutch pedal until u feel it take up a bit...and let go when the lights green....hold on and be ready to shift real soon.
Thats whats worked for me.

 

I do between 5000 and 5500. Try it out on a dirt road/wet parking lot for your first few times. It will be much easier on your car.

Nick

 

I had my best launch with DCCD set at max power to the rear wheels, you'd think the best launch would be with it set at auto, but no...

 

I found the best to be at auto. I tried many different settings at the track. With it in 35/65 I couldnt get the car to hook up at all. With it in 50/50 lock it was pulling the same #'s as auto, but I had to swivle it back to 35/65 so I didnt hurt the diff. I pulled constant 1.7 60ft's with a stock STi in auto.

Nick

 

hey, you've actually been to the strip, so you would know.

I just happened to run into this '90 Porsche 911 Turbo....on a PRIVATE road...