I need to wire up the 2 step feature on my new MSD digital 6 to help me launch my car more consistantly (T56 trans). I plan to run the blue wire from the digital 6 to a clutch pedal mounted micro switch, as well as a shifter mounted micro switch (this will contact the shift handle only when the trans is in 1st). If either micro switch is open, the 1st step doesn't activate. This way the only activation for the 1 step (in my case the launch step) will be when the clutch is to the floor and trans is in 1st. I only plan to have 2 switches inline as I don't want to reactivate the 1st step every time I shift when the clutch goes to the floor as I will shift at an RPM higher than I launch. Now to the hard part. How do I now wire in a relay (or something else?) to deactivate the nitrous system when staging, since it will try and activate since the pedal will be to the floor closing the carb mounted WOT switch. That is where I get lost. I have searched on MSD's site with no real solution, and multiple board and online searches find no similar situations. Anyone that can help me?

 

A second switch on the Clutch pedal to disengage the N2O system.

 

Excellent idea, I will look into that. Thanks.