can you do the big 3 with 4 guage?

[JUHL 10+ year member]

???

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[Williams37 10+ year member]

I did mine today with 4ga. I ran 1/0 to my sub, and I know people on here recommend 1/0 for the big 3, but It would have been 10 times harder running anything bigger than 4 on my f150. I even had a hard time moving the 4 around when I did the engine ground to chassis. My amp will be in tomorrow, I'm hoping my light dimming will be gone. Good luck man

 

[KyleBechtold 5,000+ posts]

you can do the big 3 in any size wire you please.. now then the size will affect the performance.. atleast try and get your grounds in 0ga

 

[rgplayer 10+ year member]

I just did mine with 4. Before it idled at 13.5 with lights off. With lights on 13.2. Now 14.0 and 13.7 at idle it fluctuates with lights on or off the numbers are the same. Before lights dimmed when either window was being rolled up. Now both have to be going and ac on for them to dim just a little and voltage drops to 13.4.

 

[91Chevy 10+ year member]

Mine's done with 4. Helped voltage drop considerably.

 

[KyleBechtold 5,000+ posts]

I just did mine with 4. Before it idled at 13.5 with lights off. With lights on 13.2. Now 14.0 and 13.7 at idle it fluctuates with lights on or off the numbers are the same. Before lights dimmed when either window was being rolled up. Now both have to be going and ac on for them to dim just a little and voltage drops to 13.4.

your lights drop your voltage .3? holy hell..

 

[rgplayer 10+ year member]

lol I have an 85 amp alt:crap:

 

[Funky Pups 10+ year member]

save moneys and do 1/0 you will be glad you did

 

[thegreatestpenn 5,000+ posts]

you CAN do the big 3 with 4ga., but considering the prices 1/0 can be had for now, you might as well do it with 1/0. It is well worth it.

 

[AlterEgo99 5,000+ posts]

I'll be doing the "Big 3" this weekend on my '08 Silverado...using 1/0 gauge from Knu...**** stuff is HEAVY but it is quite flexible and will be no problem to work with. I would honestly not do it if I didn't use at least 1/0 gauge...it's cheap insurance and assures you are taking full advantage as to why so many believe in and have seen results. IMHO. //content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif

 

[AlterEgo99 5,000+ posts]

you CAN do the big 3 with 4ga., but considering the prices 1/0 can be had for now, you might as well do it with 1/0. It is well worth it.

x2

 

[on1wheel01 10+ year member]

yea and since thegreatestpenn has a ton of wire for sale buy some from him to do it in 1/0(thats what i did). I first had mine done in 4 then went to 1/0 i would tell a diff do it right the first time

 

[nineball 10+ year member]

I first had mine done in 4 then went to 1/0 i would tell a diff do it right the first time

x2

did the same thing. now i have a bunch of short 4g pieces sitting in the garage until the day they eventually get thrown out.