shut off switch

[69trk]

I moved my battery to the rear of the truck using one of cpp battery stainless drop out box. I just ordered one of the push off switches and was wondering how you guys get the alternator to shut off. I haven't wired the switch yet. If you take wire from alternator to the load side of the switch everything will still run off the alternator. And if you take it straight to the battery or the line side of the switch, the alternator will stay energized from the battery even though switch is in off position. Was just wondering if they make a switch that the alternator will attach to. And was wondering how all these cars are getting away with these type of switches when nhra says all power to the whole car must shut off when shut off switch is off.

[RatPwrd72]

I can't help much, as I don't run an alternator on the '67. Maybe someone else can chime in.....

[bigjimzlll]

The NHRA says the main switch must stop all elctrical functions along with the engine. It does not say it has to kill all of the power.
Most people run the alternator wire to the line side of switch or battery.

I use a painless hi amp relay. My main switch only controls the control wiring of the heavy duty relay. I also have a main in cab toggle switch wired in series with the main switch. This way I can shut off all of the power to the pump and engine with a flick of an in cab switch.
It's pretty slick.

[69trk]

Originally Posted by bigjimzlll

The NHRA says the main switch must stop all elctrical functions along with the engine. It does not say it has to kill all of the power.
Most people run the alternator wire to the line side of switch or battery.

I use a painless hi amp relay. My main switch only controls the control wiring of the heavy duty relay. I also have a main in cab toggle switch wired in series with the main switch. This way I can shut off all of the power to the pump and engine with a flick of an in cab switch.
It's pretty slick.

Thanks for the advice, i think that i'll do the same thing.