Sniper and Trunk Battery help

Broke Farmer said

4. Perhaps I am using wrong terminology. The ford solenoid would be getting constant current from the alternator on one side of the post. Would that kick the solenoid or is it not enough?

I just like that diagram as it appears to me the starter wire would remain cold after intermittent use in starting the engine.

Sheesh -- my son and I are getting great time together putting this thing back together but it ran 11:20's with the old AVS carb on a cast iron intake and now I am thinking WAY too much about things!

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You lost me.......two diagrams. ........the special device you are talking about is to disconnect the alternator. It is basically a specialized solenoid--and you will have to check with the manufacturer---might be a "load" for the alternator upon shutdown. It is basically (otherwise) a continuous duty device. You will have to check DOES IT draw current whenever the disconnect is powered ? If so that is going to be a battery drain anytime the car is not running (charging).

The Ford solenoid AKA Crackedback is triggered by the car "start" wire from the igntiion switch. I'ts only function is to operate the starter. The purpose of this is to keep the large wire from the battery to "up front' DEAD at all times except when the starter is operated.

(Follow crackedbacks diagram, see the relay at top right? That is the stock factory starter relay. The wire going from the "square screw" terminal on the stock relay NORMALLY goes to the starter solenoid, and instead, runs to the rear, to the S terminal on a Ford relay (other end of coil on a Ford relay is the ground /mounting bracket) That relay fires "in start" and feeds the huge cable to the starter. The Mopar starter S terminal must be jumpered to the main battery post at the starter, so when it gets power, it pulls right in and operates