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Can Stock alternator handle amp and sub?

Discussion in '40- & 55-Series Tech' started by Cruiserhead05, Nov 25, 2003.

  1. Cruiserhead05

    Cruiserhead05 SILVER Star

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    i have in my 82 fj40 right now just a small cd player but i think i may be getting a small amp and one subwoofer to put in the back for some extra bass. will this hurt my amp or draw to much power. i have no other aux. items hooked up, this will be all.. thanks
     
  2. Poser

    Poser Oh...Durka Durka Durka. s-Moderator Supporting Vendor

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    You should be fine. Your stock alt. should be a 55A unit.

    Have fun!

    -Steve
     
  3. godzilla

    godzilla

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    I'd think about installing a gm alternator. I did and don't regret it. There's a thread on it. Gm alternators range from 60- 150 amps stock! It all depends what year you get. I used a cs-130, 100 amp, from a 89 chevy 1500 4wd pickup. I think it cost me $100.00. Before you get one, just ask your parts guy and he should be able to tell you how many amps it will put out, before you buy it. Mine came with a serptine belt pulley, I removed that and replaced it with a regular pulley off a 10si alternator, works fine. Mine is installed on a 74 fj40 f engine. Checkout alternatorparts.com, they offer a wiring plug to make it work. I hope this helps you out.
     
  4. folsom50

    folsom50

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    Godzilla, did putting that bigger gm alt. get rid of your headlight dimming at stop signs/idle?
     
  5. Bradass80

    Bradass80

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    I did the same thing w/ my 78 no more dim lights and i run 2 12" subs no problem, Brad.
     
  6. godzilla

    godzilla

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    Folsom, no more headlight diming. Works great!
     
  7. folsom50

    folsom50

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    Kewl! I see a new alt. in the near future. What is a "10si pulley?"