NIStune Feature Pack V.1 - Manual (Page 17)

Launch Control Operation
External Switch Trigger
Launch control can be triggered either using the speed input, or using an external switch. Disconnect the Power
Steering line from the ECU and connect directly to a clutch switch to trigger the launch control externally.
Image: Wiring external trigger between ground and power steering line
Z31 VG30 / R31 RB30 / VL RB30
Pin 28 - Ground
Pin 27 - 12V power
RB30
Pin 30 - MAF calibration signal (RB30 only). Wire as per S13 CA18DET with switch
VG30
Pin 15 - Fuel temp input (VG30 only) wire this end switch as above, and other side of switch to Pin 28 (GND)