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Most I know do what Cab says and run the alt output wire to the battery side of the cutout switch. Another option is like I did years ago on my bracket car and that was I put a toggle switch on one of the field wires and ran it inside the car so I could kill the charging system when I made a pass and you can also just kill the charging circuit when going thru tech with that toggle switch in the car so it dies when the kill (cutout) switch is turned off. It is alot less wire to run if you just tap into a field wire and run it in the car within the drivers reach on a toggle switch. I burned out a rotor on my bracket cars alt so thats one reason I would kill the charging system when making a pass. Ron
Dont let the tech guy see you with a separate switch
set up like that... its a no no .. if you forgot and
had it on during a pass it wont kill the ignition
if needed and your knocked out
I run the alt output wire to the battery side of the cutout switch on my 63. I also put a voltmeter in the car since the stock ammeter wont read correctly when you run the alt output wire like that. On my old 340 bracket car in the late 70's and early 80's I burnt out two alt rotors so I thought taken power away from the rotor on the 6500 rpm passes may help to not damage the alt rotor circuit. Did it help ?? Well it did not burn out any more alt rotors but I did roll the car about 1-1/2 years later. Course with the alt output killed the car will die when the cutout switched is turned off even if the alt is not wired right but like you said if you forget to hit the toggle switch and would crash then it wont kill the car so I do agree with NHRA on that rule that you still have to run the alt output wire correctly. Ron
Last edited by 383man; 03/28/14 05:25 PM.
