[GlennCMC70]

i need to start the wiring part of my CMC car build. the only factory wiring thats gonna be used is the engine harness.
i guess when wiring a car, the first place to start is the battery and go from there. when wiring in a master cut-off switch, is it as simple a putting it inline w/ the positive battery lead? i think the alternator feed needs to be on the battery side of the disconect switch, right? i also plan to put the PCM BAT lead there also.
one thing i keep seeing reference to is something to protect the alternator when this switch is flipped. what needs to be done here?
tell me what you know on this please.

[CMC#5]

You guys running in sanctioned events might want to read the requirements of your particular sanctioning body for kill switches. Nasa, for example, requires the kill switch to shut off power to everything that is not the fire system or other life support/medical device. aka nothing is on the battery side of the switch except the battery.

I used one of the longacre four pole switches and cut the excitation current to the alternator (as Randy) with the secondary pole to eliminate the voltage spike and the motor. I never use the kill switch. I have a regular old ignition key to turn it on and off! (IMG:http://www.frrax.com/rrforum/style_emoticons/default/laugh.gif)