Wiring Duals Alts?

[smokeumtires]

Im sure this has been answered b4 but everytime i put it in the search nothin comes up.Im gonna order dual alts for my hoe one 240 and one 300.I wanted to know how I wire it?Im guessing I plug in the 240 to the stock wiring and then what ? find another plug for the 300 and splice into the stock wiring or just run the 300 to the battery when i do my big 3?Im tryin to understand all this so bare with me .Correct me if Im wrong but arent the Iraggi's internally regulated??If so I NEED to splice into the stock wiring,RIGHT?

Please help guys

I NEED THIS KNOWLEDGE

Aloha

Smokeumtires

[EricM9104]

Most Iraggi alts have internal regulators, I think it's only an external regulator if you order it like that???? Correct me if I'm wrong.

[Derrick824]

Wire the plug for the 2nd alt in parallel with your stock plug.

[emperorjj1]

yes both statements above are true. personally i would try to upgrade as much wire as possible thou

[smokeumtires]

SO splice into the stock wires with the 2nd alt ....and run two 300amp fuses between alt and batt when doin the big 3.One more question. when its all done since I spliced to the stock wires do i need to change the stock fuse?Or no leave it?

[pervitizm]

I'm with Smokeumtires on this. Any information or instructions on how to actually install and properly test a dual alternator system would be really helpful. Maybe if we could get some who's currently doing a multi-alternator install could share the experience. Maybe we could sticky the information just like the Big 3 thread above.

Right now the only really good hands on tutorial I could find on installing a dual alternator setup was this one from Car Audio and Electrioncs website. Its a step by step using Dave's D.C. Electric's dual alternator kit.

http://www.caraudiomag.com/technical/0206c...ator/index.html

[Derrick824]

On my truck, I ran the power wires from each alt directly to the battery and I personally didn't use any fuses on that wire. My '06 Yukon alt has a 2pin plug. One is the voltage sensing wire and the other is the stator wire (turns on/off the alt). The factory alt is computer controlled which I wanted to bypass with my second. My second alt is a 200a large case GM w/ the 4pin plug. Only one of these wires is actually needed. It is known as the "L" wire (stator wire to turn on/off the alt) and in my case was the yellow one. This wire was connected to a 12v ignition source so the alt turns on/ff with the truck without any interference from the computer.