Upgrade Alternator?

[B0$$MAN]

I want to upgrade my alternator in my 2002 GMC Yukon Denali. Will 200 or 250 amps be enough? What is the stock alternator rated at?

 

[yukonjacks]

I think the stock are 105, what are ya runnin? best thing is to go to your local alt repair shop.

 

[tast101]

Wrenchguy is selling his 300amp alt in the for sale section.

 

[JennaBear]

More than enough, your stocker is either 105 or 145, probably 105.

 

[B0$$MAN]

I have the following:

4 Alpine Type-R 12" Subs
Custom built box tuned to 33hz
4 Alpine Type-X 6.5" Component Speakers
Kenwood KVT-819DVD Headunit
2 10" Power Acoustik Headrest Monitors
1 Hifonics Colossus 3200 watt RMS amp - for subs
1 Hifonics Zeus 780 watt RMS amp - for speakers
1 Optima Yellow Top Battery
"BIG 3"
5 Farad Capacitor

 

[gtbigup01]

Be careful about upgrading alt. A lot of folks do not thinking of other things that may need to be changed including wires to handle the more amperage. Make sure you do it at a shop that specializes in that type of work and just don't do a one for one swap.

 

[WrenchGuy]

A good quick reference would be to add up all your equipment fuse ratings. Give you an idea of what your gonna pull.

---------- Post added at 12:30 PM ---------- Previous post was at 12:29 PM ----------

I have the following:

4 Alpine Type-R 12" Subs
Custom built box tuned to 33hz
4 Alpine Type-X 6.5" Component Speakers
Kenwood KVT-819DVD Headunit
2 10" Power Acoustik Headrest Monitors
1 Hifonics Colossus 3200 watt RMS amp - for subs
1 Hifonics Zeus 780 watt RMS amp - for speakers
1 Optima Yellow Top Battery
"BIG 3"
5 Farad Capacitor

To me your list justifies buying one!

 

[NoPh33rRaCiNg]

I think the stock are 105, what are ya runnin? best thing is to go to your local alt repair shop.

do not go to local alt shops and have them rewound to "higher" amperage. Its better to just buy a new high output one from a well known companies. Usually the ones that get rewound dont last long, and then have horrible idle output.

I have the following:

4 Alpine Type-R 12" Subs
Custom built box tuned to 33hz
4 Alpine Type-X 6.5" Component Speakers
Kenwood KVT-819DVD Headunit
2 10" Power Acoustik Headrest Monitors
1 Hifonics Colossus 3200 watt RMS amp - for subs
1 Hifonics Zeus 780 watt RMS amp - for speakers
1 Optima Yellow Top Battery
"BIG 3"
5 Farad Capacitor

get a alt from DC power or mechman and ditch the cap and youll be golden. If you register on caraudioclassifieds.org mechman is a vender on there he always has sales for GM's and fords. i picked up my powermaster 220 amp from him that he beefed up for 220 shipped which is a deal compared to other 400 dollar ones from mean green, irraggi, etc... and it benches 138 at idle and 240 peak

Be careful about upgrading alt. A lot of folks do not thinking of other things that may need to be changed including wires to handle the more amperage. Make sure you do it at a shop that specializes in that type of work and just don't do a one for one swap.

he should be okay he has the big 3 done already

 

[B0$$MAN]

Thanks Guy!
What other wires will need upgrading with the alternator?

 

[NoPh33rRaCiNg]

Thanks Guy!
What other wires will need upgrading with the alternator?

you said you have the big 3 done, which consists of upgrading the factory wire to 4 gauge or larger, preferably 0 gauge. big 3 = upgrade the alt + to battery +, battery - to chassis, and then engine block to chassis.

if you have that done then your good, just swap your alt for a new one.