Have at it, guys. The Lightning gods have decended upon this thread. Cool.

 

Have it pretty well figured out before I saw the diagram.Now I am sure I do.need to place a diode in the charge lite circuit need to figure out which side to put it on.By doing that it should take the feild away from the alt and thus won't charge.PLUS for you drag racers if you put a switch in that circuit you can disable the alt and gain a few ponies too.Stan

 

ttt

 

I am interested in the brand and size of your wheels. ****

 

NHRA hasn't figured out yet that you should kill the GROUND. Then nothing is hot. If you kill the positive, you still have a hot wire to the switch. If it contacts the frame or any sheetmetal it will energize the system. If you kill the ground, the entire electrical system cannot reenergize.

It's just safer.

 

The logic is it is safer to kill the hot wire in an accident. If you kill the ground, any twisted metal could renergize the entire system (by hitting the battery).

By killing the hot, you have to have a failure in the switch(pretty darn unlikely)

Coldie

 

Current itself (electrons) actually flow from the negative (ground) to the positive. Jay is right that killing the ground is the easy and safe way to do this.

It used to be thought that current flowed from the positive terminal, but this is incorrect. However, a lot of rules and wiring are still based on this misconception.