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Hot Rods 60 amp 3 wire GM alternator

Discussion in 'The Hokey Ass Message Board' started by The HellyDid, Dec 4, 2019.

  1. The HellyDid
    Joined: May 1, 2011
    Posts: 124

    The HellyDid
    Member
    from Florida

    What gauge wire from alternator to battery? It's a long run, from passenger side to drivers side battery
     
  2. squirrel
    Joined: Sep 23, 2004
    Posts: 45,806

    squirrel
    Member

    you can probably use 10 gauge, but you can also use larger wire, if you feel it would be a good idea. The larger the wire, the less voltage drop, cooler the wire is, and the harder it is to route safely and terminate at the ends.
     
  3. Boneyard51
    Joined: Dec 10, 2017
    Posts: 3,913

    Boneyard51
    Member

    Agreed, but going from one side of the car to the other, I would do eight gauge , just to be safe.






    Bones
     
  4. jimmy six
    Joined: Mar 21, 2006
    Posts: 6,195

    jimmy six
    Member

    The more strands the better. A good crimp or solder the ends. Finish with heat shrink.
     
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  5. Boneyard51
    Joined: Dec 10, 2017
    Posts: 3,913

    Boneyard51
    Member

    LikeJimmy Six says, a good crimp! You will not get a good crimp on eight gauge terminals with a cheap crimper! Every hot rodder needs a good crimping tool! I have about six, I have collected over the years for 16 gauge to 00 gauge. One tool will not do both. And like Jimmy, I also solder mine. But there are differences of opinions on that! But a good crimp is imperative!
    I cringe when I see a otherwise nice looking wiring system with poorly crimped insulated terminals. I use un-insulated terminals crimped with a good crimper, soldered and heat skrinked. Never had a failure doing it that way.





    Bones
     
    jimmy six likes this.
  6. 10 gauge is common. if it were long like in 10+ ft I would maybe consider 8 gauge.
     
  7. Bandit Billy
    Joined: Sep 16, 2014
    Posts: 6,413

    Bandit Billy
    ALLIANCE MEMBER

    I use one of these things and a 5 lb hammer on anything 10 or larger and heavy heat shrink tubing. The only thing that sucks is if you have to put an end on inside the car. On my 34 I had to terminate a 6 cable inside the passenger compartment, I got tricky and used my vice to close the crimper.
    upload_2019-12-4_11-11-22.png
     
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  8. V8 Bob
    Joined: Feb 6, 2007
    Posts: 2,609

    V8 Bob
    ALLIANCE MEMBER

    A 3 wire alternator should have the output going to the main voltage distribution location, and then from there to the battery. I use 8 gauge with a 60 amp 10SI 3-wire and trunk mounted battery.
     
    Boneyard51 likes this.
  9. Jack E/NJ
    Joined: Mar 5, 2011
    Posts: 578

    Jack E/NJ
    Member
    from NJ

    BB>>>I use one of these things and a 5 lb hammer on anything 10 or larger >>>

    Dull chisel just as effective. 8^) Jack E/NJ
     
    54vicky and Boneyard51 like this.
  10. The HellyDid
    Joined: May 1, 2011
    Posts: 124

    The HellyDid
    Member
    from Florida

    Thanks guys, and I have one of those crimpers too.
     

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