AD244 alternator upgrade

Discussion in 'Electrical Systems' started by ULTM8Z, Aug 24, 2018.

  1. ULTM8Z

    ULTM8Z Veteran Member

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    Awesome!

    Upgraded to an AD244 alternator. Factory spec, AC Delco, 2002 Silverado. 130 amp.

    https://www.thirdgen.org/forums/electronics/755380-ad244-conversion-took-plunge.html

    The idle output is phenomenal. With everything on... A/C on high with auxilliary condenser fan, stereo, headlights, Taurus fan on high, and the EFI system itself, I'm getting 14.3V at the back of the alternator.

    My old CS130 would barely keep up... getting around 13.1V.

    And it looks cool to boot...
     

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    Last edited: Jun 27, 2019
  2. Turbo70Camaro

    Turbo70Camaro Veteran Member Gold Member

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    Direct bolt it?
     
  3. Twisted_Metal

    Twisted_Metal Administrator Staff Member Lifetime Gold Member

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    Can't see the third gen link without signing in.
    What wiring changes need to be made?
     
  4. ULTM8Z

    ULTM8Z Veteran Member

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    Almost a direct bolt in. On the serpentine bracket mount, you have to elongate the mounting hole at the 9:00 position since the AD244 takes a 3/8" bolt as opposed to the 5/16" on the CS130. Except for that, it bolts right up

    For wiring, it's simply the main battery wire to the main output terminal. Then on the connector, it's the sense wire and a wire to the ignition circuit on the L terminal at the back of the alternator. Except on the wire to the L terminal, I have to put a 470 ohm resistor inline if you're not running the idiot light. If you're running the light, then I think you put the resistor in parallel with the light, such that if the light burns out, you still have the resistor protecting the alternator from full 12V exposure.

    And of course you have to get the pigtail connector for the AD244.
     

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