Section 4-General Regulations 8:4

Master Cutoff, 2008 NHRA Rulebook. :read2:

I would like some ideas about how you guys handled this Rule.

I'm thinking the easiest thing to do is route power to the coil from the battery side of the switch, this should cut power to the coil when the switch is in the off position. Due to my battery being in the trunk this will make the lead for the coil pretty long and I'm a little worried about the amount of voltage drop at the coil.

some other ideas that have been mentioned was a diode somewhere in the alternator circuit I'm not an electrical genius so this sounds more complicated.

Or routing alternator output back to the battery side of the master cutoff switch, heavier gauge wire needed and an increased risk of a short large enough to start a fire.

Our first Test 'N Tune is Sunday so any help would be appreciated. :clock: