For 2011 launch control was again revised, and would allow for a 3300 rpm launch with R-R-R. However, if the car got a lot of wheelspin, the car would bog and loose power, basically falling on its face. This has caused some issues for guys with 2011 cars trying to drag race. John Shepherd, the GT-R transmission builder of choice for the quickest GT-R's in the world has a 2011 Nissan GT-R. He has gone as quick as 9.92 with the car, but he felt there was still more in it. Tym Switzer from Switzer Performance stopped by Sheptrans and helped him out with his transmission reprogramming it to LC1. Check out the video below.
We reprogrammed both the ECM and TCM in the car and we've got everything working together properly so it looks like we're good to go. John is currently running the ProEFI on his car so in the video you will hear a 2 step limiter being used to control the rpm to a lower level than the typical LC1 4000+ rpm limit which is not needed for his combination. Besides... due to the fact that John spends so much time processing all of the transmission builds we, AMS and so many other shops send in... he's still running a stock gearset in his car. I'm hoping he gets that changed out soon.