This diagram illustrates how to leave off the line on the launch limiter. This will disable the nitrous while on the limiter and will enable the nitrous after the transbrake/clutch switch is release with the RPM activated switch.

This diagram illustrates how to disable the nitrous circuit while on the limiter transbrake at the line. Then using the brown and white wire either off of RPM or Time, the nitrous will activate after the vehicle has come off