Battery in Trunk Wiring That Exceeds NHRA Requirements

Battery in Trunk Wiring That Exceeds NHRA Requirements

Read the WHOLE statement... and your question which got the response in the first place (starter draw)! Which cable is it in reference too? The sentences above it has something there as well which addresses your question. Look at the schematic.

Also addressed in post 68.

Does the right side of the ford relay connect anywhere to your cut off, NO! We are talking about the cutoff switch circuit. My comment about the starter was only to point out it doesn't have anything to do with the breaker.

SpeedThrills said
I screwed up post #67. Here's what I was try to do:

I'm glad I posted again because crackedback pointed out that I still don't know what I'm doing!
I'm getting closer, and as I said before, I'm glad to keep asking questions as long as crackedback doesn't mind answering them and correcting me.
I learned years ago, that if you can explain a given subject to someone else, you know it. I'm not there, and don't expect to be without electrical training, but that, I think, is helping me ask more pointed questions.

Here goes; (gotta be a better way to do this)

-Okay about the fuse on the Ford relay, but it's there now.

-Okay on the trigger wire being fused.

-Regarding having a breaker in the cable between the Ford solenoid and the cut off switch:
I forgot you suggested that. If I remove that breaker from the alt. cable, (this is the one I used) https://www.amazon.com/gp/product/B08RX5QN4P/?tag=fabo03-20 can I use it (is it the correct one) between the left side Ford solenoid and the cut off switch? You mentioned a rating being different because of the 12-48 volt rating of the breaker. I don't understand the theory there. I get that the 1/0 gauge from the Ford solenoid to the cutoff, and from the cutoff to the factory starter solenoid (now a bus), is too heavy (you did mention that). I'd like to replace that with something more appropriate. Would 6 ga. be adequate? I believe 10 ga. is factory, with a much shorter run.(Again, I don't know how to figure that.) I had been thinking that starter amperage went through that, thus the 1/0. It would also be easier to connect a lighter wire to a lug that would connect to the breaker, instead of 1/0 ga. to a relatively smaller breaker. (At least as far as my limited knowledge goes.)

-This is confusing me:
"Power for the starter is provided from cable on the right side of ford relay. I usually run a maxi fuse that pops at 40-60 amps on a 12v system on that line depending on expected loads." I thought it would need a higher rating, thinking that the starter draws more than 40-60.

-I got it regarding the 1/0 going from the cut off to the factory starter relay (middle connection) having nothing to do with the starter. (And, if I'm correct, it will be protected by the breaker I put in the cable between the cut off and the left side of the Ford solenoid.)

That's it for this go-round!

Call the manufacturer about the breaker and its use here. I don't use them.

I run 4-6Ga from cutoff to OEM starter relay depending on loads. The nice thing about those size wires, you can put a maxi fuse holder inline very easily.

Added where the maxi-fuse or breaker should go.