Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

Alternator/Electric upgrade question

Discussion in 'The Garage' started by newyorkin, Feb 22, 2003.

  1. newyorkin

    newyorkin 1 ton status

    Joined:
    May 8, 2001
    Posts:
    16,555
    Likes Received:
    157
    Location:
    Los Estados Unitos
    Hey all, got a real quick question:

    If I were to upgrade my alt from 85 amp to 108 amp, what else do I need to change? I'm not 100% sure, but I think the existing charge wire is 10 guage.

    Alternate option:
    Install the 108 alt as a second alt, install a second battery for it, intall a second fuseblock under the hood, and reroute all existing non-factory electric accessories to this new circuit.

    Thoughts, recommendations?
     
  2. Why me?

    Why me? Registered Member

    Joined:
    Jan 28, 2003
    Posts:
    22
    Likes Received:
    0
    I used the mounting bracket, etc off an older (pre 65) chevy one time. Had two alt, and two battieries. Worked great!
     
  3. jms

    jms 1/2 ton status Author

    Joined:
    Jan 24, 2001
    Posts:
    1,683
    Likes Received:
    0
    Location:
    --
    On my '85 I went from a 65Amp to 105Amp; I got rid of the fusible link to the terminal block on the firewall and went to a direct charge cable to the battery - I think it's 1 gauge, with an inline fuse from WranglerNW.
     
  4. chulisohombre

    chulisohombre 1/2 ton status

    Joined:
    Apr 11, 2002
    Posts:
    4,141
    Likes Received:
    14
    Location:
    Bangor,Pa
    i got the hundred amp from summit.all i did was run a singe i think 6 guage wire with fuse to the battery from the alternator.now i have a optima battery and everything runs a lot better than stock.
     
  5. Z3PR

    Z3PR Banned

    Joined:
    Mar 30, 2002
    Posts:
    19,217
    Likes Received:
    0
    Location:
    Everywhere
    Do you already have the new Alternator ??? If not, check with local rebuild shops about building one for you. They can normally put one together for alot less money then you can buy one from the parts house, or places like Summit or Jeg's. Might save ya some bucks.
     
  6. newyorkin

    newyorkin 1 ton status

    Joined:
    May 8, 2001
    Posts:
    16,555
    Likes Received:
    157
    Location:
    Los Estados Unitos
    Thanks for the info, y'all. Paul, I already have the alt, I picked it up yesterday morning when I was at a shop I hang around. This one is stock from another GM, and appears that it will fit perfectly in place of mine. If I get into it and decide to add the new one instead of replacing, I have some brackets I can fab together. I started fabbing stuff togetehr last summer for a smaller modern GM car alt I wanted to add as a second but never finished. Now with the house, it's hard to get out there and get stuff done, so I want to make quick mods, to avoid them sitting half-done for months at a clip...
     

Share This Page