
Just curious if it would be a simple design I could build if someone could draw the plan. Autometer make shiftlights with changable resistances (to light up at 7000rpm, 7500rpm, 8000rpm etc) that I believe runs off the ignition pulses or something but I don't want to have to butcher one of those, theyre not cheap.
Basically I want to use it to trigger a nitrous system. I have a microswitch so it wont work till WOT, a gear position sensor so its only triggered in 2nd or 3rd gear and above and hopefully the rpm trigger so that it only works above, say 6000rpm.
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