battery cable gauge

[springerpete]

If I decide to put a dis connect switch in the ground wire on my battery, what gauge wire should I use ?

[Bruce Adams]

You can purchase 00 gauge at marine stores or catalog from West Marine or Internet.
Copper braid from model a vendors.

[Mitch//pa]

Use the same gauge cable that the model A was designed for. You wouldn't want to downgrade that...

[1931 flamingo]

Cables (proper length) and disc sw (the good ones) are available from most of the vendors. FWIW
Paul in CT

[MikeK]

You need #2 AWG. That is what Ford used originally. NOT the much heavier 2-0, 00, or "two-aught" that many confuse with #2. If you are running 12V then #4 AWG is good.

In any case, as long as you are re-working the ground wiring, an added lead from the same center crossmember bolt that one side of your switch is attached to, going to a tranny bolt is a good idea unless the car is a fine-point resto.

[Terry, NJ]

Sponsored Links (Register now to hide all advertisements)

I have to second Mike K's suggestion about the auxiliary ground cable. I put one on my coupe and it was so much of an improvement that I put one on the other two cars as well! The engine turns slightly faster and the battery seems to have more cranking amp hours. I'd go for it.
Terry

[michael a]

I bought some to gauge wire from O'Reillys today I don't know what the standard is anymore but these would make excellent 12 volt cable but it was not near big enough for six vopt Cable I was also reading on Amazon or some guys purchased two gauge cable and was very disappointed in the amount of cable inside of the insulation I think that the standards or different on this cable so you got to watch what you bye

[1955cj5]

Originally Posted by MikeK

You need #2 AWG. That is what Ford used originally. NOT the much heavier 2-0, 00, or "two-aught" that many confuse with #2. If you are running 12V then #4 AWG is good.

In any case, as long as you are re-working the ground wiring, an added lead from the same center crossmember bolt that one side of your switch is attached to, going to a tranny bolt is a good idea unless the car is a fine-point resto.

I did something like that...a #2 positive cable from O'reillys, battery + to the disconnect switch, then a cable from the switch to a starter bolt...

Unless you do some extensive cranking the #2 cable should be sufficient...it has been for me....