Ignition kill switch

[Farbin Kaiber]

Use the summit style push/pull kill switch. It has a large gauge provision for a battery kill, along with a smaller set for the alternator or fuel pump.

[LTDScott]

I need to install an externally mounted ignition kill switch on my 24 Hours of LeMons race car. This is not for theft prevention, but for safety crews to shut off power to the car in the event of an accident, which means it needs to cut off alternator power too.

Has anyone done this before, and if so, how did you do it? Wiring the battery to the switch is simple, but I'm not sure about the best way to kill the alternator. I'm betting Spec E30 guys have to do this, so hopefully someone has some insight.

I'd likely mount the switch on the passenger side of the cowl (maybe use the RHD wiper hole) since it's very easy to access the battery junction on the firewall.