battery disconnect wiring question - Team Camaro Tech
Electrical & Wiring Troubleshooting electrical.

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post #1 of 3 (permalink) Old Jul 1st, 03, 10:18 AM Thread Starter
Senior Tech
Join Date: Feb 2003
Location: Oregon
Posts: 176

When wiring a battery disconnect switch is it best to use the negative cable? Can you use the positive cable to do it? If not, why?


-67' in progress - mostly stock, base model, scb 305, edelbrock intake, Hotchkis 2" drop springs, KYB up front, SSBC disc conversion.
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post #2 of 3 (permalink) Old Jul 1st, 03, 01:26 PM
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Join Date: Mar 2002
Location: Austin, TX, USA
Posts: 5,277

It doesn't matter which you use as far as electrical flow or circuitry is concerned. But negative is a wiser choice since you won't have to worry about hot wrenches if you were to use the posititve lead instead.


68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI
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post #3 of 3 (permalink) Old Jul 1st, 03, 09:42 PM
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Join Date: Feb 2002
Location: N.W. Washington
Posts: 7,962

dnult is correct, it really doesn't matter to the car where you disconnect. but, its a more common practice to disconnect the positive side, and that is how i would do it. just make sure when hooking up or unhhoking the wires on the switch the neg. cable is off the battery, so you dont get the spark show dnult describes. in fact, if you drag race and need to pass tech, nhra rules state the cutoff switch must be connected to the positive side. hope that helps


1968 rs with an old school 354" SB2.2 pump gas motor.

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