The master disconnect switch on the negative side is not NHRA legal . I did something similar to the wiring diagram on my race car, the starter relay is near the battery in the rear, and the battery cable is only hot when the starter is cranking
Correct. And the reason for that is, a car's electrical system will ground ANYWHERE IT CAN if you're not very careful. The power side is much easier to isolate.
While he may not be looking for the NHRA legal way, nine times out of ten, that's the safest.
What I would do if I ever do a trunk battery conversion and I may, is use @crackedback's trunk wiring setup to the TEE. That's why I have it saved. That's the diagram referred to in post #8.
