One of the most common tech failures we see at race tracks is an improperly wired battery cutoff switch. We see it all the time, and most of the time the person whose car is failing has no idea why it’s not working the way they want it to. When properly wired, the battery cutoff switch will turn the entire car off as soon as it is flipped. The most common reason that it doesn’t do this is that the alternator charge wire is not going through the switch like the main positive battery cable. If your battery is in the rear of the car, and you run the alternator charge wire to the positive cable at the starter, for example, the car will keep running even with the switch flipped. If you want to run things the right way, listen to Doug here and he’ll show you how on this Motion Raceworks Tech Tip Tuesday video.
For the proper wiring with your system and a kill switch please reference the diagram at the link below. https://www.motionraceworks.com/pages… Learn more about dirty and clean power and grounds https://youtu.be/q93KIxn9z0c