wiring guage question

[powersupply 10+ year member]

Hi guys, I have a 95 tahoe, I am wondering what guage wire to use. I have always used 4 guage but have nerver had so much power. I have upgraded my alternator to a 280 amp, adding 2 yellow top batteries, a 15 farad cap, of course the big three wiring upgrade(bat ground, alternator ground, alternator to bat). I have a crown/jbl bpx2200.1 and two brahma 15's(on order anyway) a jl 300x4 for the jl components, alpine cd and a symmetry. Is 4 guage enough, I was thinking of adding another 4 guage. My theory always was your system is only as good as its weekest link I figure the bigger the wire you go the bottle neck is till in the thin crimp on connectors. So two 4 guage connectors would be thicker than one 2 guage. Give me some ideas.

Thanks

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[DBfan187 5,000+ posts]

1/0, hell I'd probally use 2/0...

 

[ANeonRider 10+ year member]

1/0 gauge for the big three and to the amps.

 

[powersupply 10+ year member]

Since I already have 4 guage, What is running two 4 guages equivaslent to?

 

[ANeonRider 10+ year member]

4 gauge is only good to run up to 150A, no matter how many runs you make.

 

[powersupply 10+ year member]

OK thanks, was just hoping to use up the wire I already have. But no big deal.

At one point in time I was running 2 jbl bp1200's and 2 audiobahn 1805's and popped a 250 amp breaker on 4 guage. Couldnt beleive I pulled that much juice considering I only had the stock alternator and little stock battery.

 

[powersupply 10+ year member]

aneonrider, one more question, how do you like your brutus, my friend wants one off ebay, and I have never heard one.

 

[ANeonRider 10+ year member]

Haven't received it yet, its in a Fed-Ex truck somewhere in the Mountains, lol. Do a search on here, Hifonics is very well recommended on here.