Woodburn Dragstrip
7730 Hwy. 219
Woodburn, Oregon

Tuesday Tech Question (05/20)

The Tuesday Tech Question is a fun section where prospective technical inspectors or anyone who wants to get a better idea of how to work the NHRA Rulebook can test their knowledge and search abilities. If you have an NHRA Rulebook, try and find the answer to the question in the book before looking down at the answer. If you don’t have a Rulebook but are an NHRA Member, you can download a pdf at nhra.com under ‘Member Benefits’.


I hope to rewire my 1969 Camaro Top Sportsman car later this year.  Are there any requirements as to how the master cutoff is installed?

Camaro Carl



Camaro Carl,

As you know, an external master electrical cutoff switch is required.  If the switch is the “push/pull” type, “push” must be the action for shutting off the electrical system.  No matter what the configuration is, the off position must be clearly indicated with the word “OFF.”  Any rods or cables used to activate the switch must be a minimum diameter of 1/8-inch.  Finally, the cutoff switch must be connected to the positive side of the electrical system and must stop all electrical functions including magneto ignition.

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