Dual Runs of 1/0 Gauge

[FadedSpy 10+ year member]

Quick question guys, what's the minimum wattage RMS one might have before considering dual runs of 0 gauge wire for their install?

I've got an AB VFL 150.1 that I might upgrade to a VFL 200.1 as well as a 4 ch Lightning Audio amp. I'm running 2 AB XFL 12's and was going to run new wire to upgrade from cheap 0 gauge wire to some Sky High 0 gauge and was thinking about doing 2 runs of positive. Is it even neccessary for systems as small as mine? Just curious

Also, I just ordered the XS Power D3400 for under my hood and I already have a no name AGM battery in the trunk. my front battery was a wet cell and it finally died so that's why I'm getting the XS Power battery and kicking around the idea of running better wire while I'm at it. Question is, do I have to run a ground from the front battery to the back battery? or can I just ground them to separate locations in the car? Wouldn't the car itself act as the ground wire connecting the 2 batteries instead of running a 0 gauge wire between them?

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[rfluvinmf 10+ year member]

I would take 2/0 welding cable over SH. I think you will be find with one run, two will not hurt. No such thing as over kill when it comes to the electrical upgrades.

 

[FadedSpy 10+ year member]

Where is this 2/0 Welding cable you speak of?

 

[FadedSpy 10+ year member]

Something like this?

2/0 AWG Premium Extra Flexible Welding Cable 600 VOLT - RED - 25 FEET - EWCS Branded - Made in the USA!: Amazon.com: Electronics

or

http://www.amazon.com/Premium-Extra-Flexible-Welding-Cable/dp/B00OEIZQVM/ref=sr_1_10?s=electronics&ie=UTF8&qid=1451949722&sr=8-10&keywords=2%2F0+welding+cable

 

[rfluvinmf 10+ year member]

Wireandsupply.com is where I purchase from.

 

[mylows10 5,000+ posts]

Depends on your car. And your alt the wire will carry only what your alt and battery can supply and your amp can draw from them. Adding more just allows the current to get to the amp faster

 

[Jeffdachef 5,000+ posts]

Screw that idea. Just get one 4/0 run of welding cable. Same price as car audio 1/0 ofc but way thicker and better overall.

 

[wew lad 5,000+ posts]

might want to start thinking about at least supplementing your grounds significantly, if not adding a dedicated ground run to the batteries from your amp. i wouldn't want my chassis taking more than 200-300 amps

 

[big scott]

ya your cars going to be the limiting factor.

but................

like jeff said, get 2/0 or 4/0 .

and do 1 run.

 

[big scott]

might want to start thinking about at least supplementing your grounds significantly, if not adding a dedicated ground run to the batteries from your amp. i wouldn't want my chassis taking more than 200-300 amps

thats right.

a small system is fin running your grounds to the body/frame.

i have all my grounds going to batterys/ engine / alt.