big 3 done

[drowndindreams]

sort of, lol.

found a big nice fat 1/0 gauge already between the engine block and neg. battery.

used 4 to ground the battery and run the alt to the battery, 600amps running thru them at least.

although i still see some dimming, im planning on doubling it up.

15 volts at idle!

 

[swab]

i have a piece of 1/0 thats about 2 1/2 ft long, how far will that get me?

 

[drowndindreams]

i have a piece of 1/0 thats about 2 1/2 ft long, how far will that get me?

if you get your hands on another 4-6 feet you can get it done,

you could ground your battery with that length

 

[DJTricky]

do you have a stock alt? 15 seems vary high

 

[drowndindreams]

do you have a stock alt? 15 seems vary high

thats hard to say.

my alt went bad a few weeks ago so i ordered a performance one from napa

i think its at like 150 amps

 

[DJTricky]

thats fairly stock. 150 its kind of low for performance. i have a 350 and it only hit 14.6 at idle.

 

[Black_Rain]

15v is the highest, anything over that is overcharging, bad.

 

[DJTricky]

no 15 is "safe" you can charge up to 18 or so. but your alternators are "limited" to around 14. anything over 15 your battery will start to boil. unless your running a 16 VOLT system.

 

[Green monster]

Hi, I recently bought my Tahoe and new here. Don't want to sound stupid what is a big 3, how do you hook it up?

 

[drowndindreams]

the big 3 is upgrading the current wiring between your :

battery ground
engine block to chassis
alternator to battery positive

get some fat wire and some terminals, thats it