Big 3 on a cummins?

[devilman]

I was looking into doing the big 3 on my truck but it's already got what looks like 4g wire on it. My truck is an 06 dodge ram with the cummins diesel engine. I have 2 shuriken 900 batteries on it now (I know they're not the best but I got a good deal on them). My question is, should I upgrade it all to 1/0 gauge? I'll be running 2 Udimensions pro 10.4x amps for the mids/highs and an SAZ3500 for the bass (will be upgrading to an ARC SE4000 in a couple months)

Thanks, Dman

[OrionStang]

Bigger is better.

[baaudio]

Don't take the existing wire out. Just run 1/0 next to it. The current is going to take the path of least resistance

[J00bles]

1. what size alternator (amperage) do you have now?

2. do you plan to upgrade to a larger, higher output one?

if you have a decently large stock alt, then dont waste your time on the big 3, unless you really want to..

If you plan on putting in an alt with a higher amperage rating, then you should consider doing the "big 3"

[devilman]

Stock Alt for now. I can't remeber what the stock rating is but I'm sure it's higher than most smaller cars are. Why would I leave the stock 4g wires in and run bigger next to it? I'm kinda anal about how wiring looks and think it wouldn't look clean with double wires running. Is it better to leave the stock in place and run new?

[Guest]

yes. electricity takes the path of least resistance. taking out the stock wire can cause the resistance to go up, even if you have 1/0 wire running.

[Gotloud555]

Wouldn't be a problem to go with "Big." wire as long you got fuse for it..

[cvxsmitty58]

that truck has 2 batteries under the hood right?

[lockdown801]

I have a 07 cummins mega cab. The alt is rated at 136 amps and 100 at idle. It is a dual battery set up. The only stock wire I am removing is the one that goes from the battery on the right to the one on the left. I also think I will keep the stock ground battery to engine wires in and then run an additional engine to chassis wire. I am in the process of doing the big 3 as well.