Dual Alts..... Same Amps?

[Omarvelous 10+ year member]

Will be upgrading my Stock Alternator for a 300 amp one.

Was wondering if it was possible that i can just add the 300 amp one and have dual alts??

They would be of different Amps, i think my stock is 145 amps.

Curious

Thanks

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[jellyfish420 10+ year member]

you could but do you really think you need more than 300 amps?

 

[Omarvelous 10+ year member]

well you tell me,

2-5 15" XXX each with 2000 watts

4 6.5" Midbass each i think 100 watts

2 Horns

Pioneer Avic-N1

2-4 LCD Screens

Dvd Changer

PS2

PC - maybe

And i think i had more.

I just figure instead of replacing the one i already had, if it's not too much of a hassel to add the one i'm getting, wouldn't it be worth it, the extra amperage?

 

[JimJ 5,000+ posts]

no, you don't need two alts, unless you physically can't get a big enough one in the current place.

 

[Hooter 10+ year member]

well unless you are planning on using your vehicle as a welder 145 amps is going to be way more then enough to supply everything

 

[Omarvelous 10+ year member]

How is it enough if my 1 12" xxx and 1500 watt amp is making my lights dim REAL bad at mid volume?

 

[JimJ 5,000+ posts]

have you upgraded the magic three?

 

[Omarvelous 10+ year member]

mmmm.... not yet

If u ever seen the factory wiring on the GM trucks, doesn't look like i'll be upgrading anytime soon.

You think that would fix it?

 

[Hooter 10+ year member]

I have a 140 amp alternator in the ford, mind you I dont have tons of power in my stereo, but I have dual batteries, a winch and usually a camper on it, but with all the accesories on and the camper I always have more then enough power, and I have the two batteries isolated from each other so with the key off my Stereo, winch and camper only run off the one battery so if I kill it the other one still starts the truck

 

[jellyfish420 10+ year member]

if you think you need it then do it, but do the big 3 first, big diff.

 

[audiotech]

mmmm.... not yet
If u ever seen the factory wiring on the GM trucks, doesn't look like i'll be upgrading anytime soon.

You think that would fix it?

Upgrade the big 3, see if that makes any difference. You always want to start off small, another words on things that cost the least. If that doesn't help any then we can begin to assess your system and determine what size alt you will need.

 

[supa_c 5,000+ posts]

GM uses 10ga for the 104a alt,thats totally the wrong size.

Ditch those crappy GM terminals and get normal ones.

doing the big 3 will make the difference.

 

[Omarvelous 10+ year member]

Alright i'm going to look into it.

It's just that with the Tahoe 04, it doesn't look like a big 3, more like the big 3 divide into little 6. SO many freaking wires going from the batt, 2 each from - and +. They go to the alt, some go to the secondary jumper post and so on.

Has any1 done this? Gonna ask my boys at the Chevy forum, see if any1 done this.

 

[supa_c 5,000+ posts]

what forum ?, i was gonna join one.

just replace the big 3, not the little 6.

the jumper wire dosent need to be replaced.

 

[Omarvelous 10+ year member]

what forum ?, i was gonna join one.just replace the big 3, not the little 6.

the jumper wire dosent need to be replaced.

Ooo ok, i will when i get my Optima Yellow top.

The forum i was talkin about was

fullsizechevy.com

Z71Tahoes.com

mct.truckmoxie.com