Wiring Up dual alternators?

[Equnoxe]

Hey everyone, im new to the forum, need some help.

I want to install dual alternators in my truck, im removing the A/C, made a bracket, and will use the stock belt. i can't seem to find any concrete info. i want to have both alternators working together charging the whole system.

I know that i could just go buy a HO alt and call it a day, but i off-road with my truck, and i eat through alts because they just get caked with crud. so i would rather spend less on a 130 amp with a nice warranty, then like 300 on one with a 1 year. plus the whole cool factor would be nice lol.

the problem i have is how i should wire everything up... this is what it looks like right now.

the truck is a 97 explorer with stock 130 amp alternator, harness has 2 wires (Green/Yellow)

thanks guys

this is what my system consists of.

"Big Three"

50FT of O Gauge (Knu)

2 300Amp fuses (Knu)

2 Caps (3.5 and 2.0)

2 Optima Yellow tops and a 1000CCA Motomaster.

American Bass XD2000 (approx. 2500RMS at .67 Ohm's)

6 Sony Xplod's (in parallel with 8gauge)

custom made ported enclosure

Alpine SPR-13S all around

MTX T4004 (Approx. 200Rms) for now

Sony WX-GT77UI double-din

8500LB winch

700W worth of lights

Edited August 24, 2010 by Equnoxe

[hdorre]

Get rid of the caps and get more batteries if you need them. Also, you forgot grounds on the winch and lights

[IH8PunkRok]

Get rid of the caps and get more batteries if you need them. Also, you forgot grounds on the winch and lights

he asked how to wire up the second alt. you did nothing to help him. why should he get rid of the caps? what is it hurting

unfortunately i do not know how one should wire a second alt either, there are a couple topics in the electrical section that touch on it but never give a clear answer. i would pm or email mechman, iraggi, or dc power kyle on here. they all have their own sections so it shouldnt be hard to find them. i think they would be able to give you the best answer

[hdorre]

he asked how to wire up the second alt. you did nothing to help him. why should he get rid of the caps? what is it hurting

unfortunately i do not know how one should wire a second alt either, there are a couple topics in the electrical section that touch on it but never give a clear answer. i would pm or email mechman, iraggi, or dc power kyle on here. they all have their own sections so it shouldnt be hard to find them. i think they would be able to give you the best answer

okay, and you did nothing but state the obvious

I'm done for now

Edited August 24, 2010 by hdorre

[Equnoxe]

thanks for the reply but I would rather not get more battery's and yea, it was just more to show what battery they go to, Grounds go back to the battery not the frame.

Ive emailed a few people, and a couple companies, and been on a few forums but haven't gotten a reply yet. still searching... i didn't think this was going to be as hard to find a clear answer, seeing as many people have done this.

im not only doing this just for myself though, I belong to a forum and many of the members would like to know how to do this, so im trying to find out, then write a guide so they can do it to their explorers.

thanks for giving me some more names to follow

Edited August 24, 2010 by Equnoxe

[Autruche]

If you got the alternator from the same truck that you drive (IE: year, make, model, engine size) then I would think you could just get a second alternator plug and splice it into the wiring for the stock alternator, but I have no clue if you can do it like that. I'm looking into doing the same thing on the same truck, so if you do figure it out, let us know.

[CheezyMane13]

Attach the alternator positive to each other and then have one lead go from each alternator positive to the main battery positive...then from there you have your runs from your main battery to the back batteries....make sure you do the big three and upgrade your stock alternator grounds

[Equnoxe]

Its more so the wires in the harness that im worried about, dont know what to put where or w/e

"If you got the alternator from the same truck that you drive (IE: year, make, model, engine size) then I would think you could just get a second alternator plug and splice it into the wiring for the stock alternator"

is more what im thinking, I am looking for someone with experience to tell me if its right.

splice all the wires from the second alternator into the first one?

thanks again.

lAutruche - you go on www.explorerforum.com?

[Autruche]

Its more so the wires in the harness that im worried about, dont know what to put where or w/e

"If you got the alternator from the same truck that you drive (IE: year, make, model, engine size) then I would think you could just get a second alternator plug and splice it into the wiring for the stock alternator"

is more what im thinking, I am looking for someone with experience to tell me if its right.

splice all the wires from the second alternator into the first one?

thanks again.

lAutruche - you go on www.explorerforum.com?

No, my latest install job is in a 97 explorer and the owner just want's to put a 2nd stock alternator in place of the AC pmup. I know alot about car audio and electrical, but I have no clue on alternators.

Also, FYI, to reply to as post you can click the reply button in the bottom right corner of their post. to reply to multiple replies at once just click the multiqote button in the same place and after you've clicked on all the ones you want to reply to, hit "use full editor" at the bottom.

[Equnoxe]

No, my latest install job is in a 97 explorer and the owner just want's to put a 2nd stock alternator in place of the AC pmup. I know alot about car audio and electrical, but I have no clue on alternators.

Also, FYI, to reply to as post you can click the reply button in the bottom right corner of their post. to reply to multiple replies at once just click the multiqote button in the same place and after you've clicked on all the ones you want to reply to, hit "use full editor" at the bottom.

thx