Alternator requirement

Discussion in 'Electrical Systems' started by HULKZ28, May 28, 2015.

  1. HULKZ28

    HULKZ28 Veteran Member

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    I'm using an elec fuel pump and water pump on my new motor?is a single wire 100 amp alternator up to the task??thx in advance.
     
  2. bygblok

    bygblok Veteran Member

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    depending on the amp draw of both it should be okay. Electric fans too? My CS130 runs my pump and fans with no problems and the fans draw a big load!
     
  3. junkyardZ28find

    junkyardZ28find Veteran Member

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    Don't use a 1-wire. Stick with the GM 3-wire style but definitely convert to a CS design-they handle high loads much easier than the SI (stock) type.
     
  4. kimosabi

    kimosabi Veteran Member

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    I "upgraded" to a 100amp SI style alternator from the stock DN, using the external reg to internal reg adapter plug from AAW and it sure does run hotter. It runs the dual fans, HEI, stereo etc ok but it's a little bit too hot for my liking. Next alternator will be a CS.
     
  5. Fbird

    Fbird Veteran Member Lifetime Gold Member

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    ^^^ stick with the 3 wire system. MUCH more effecient than a single wire. YES they both work. Yes it will run stuff. yes 3 wires are more than 1.

    http://www.madelectrical.com/electrical-tech.shtml

    i'm pretty sure there aren't many folks willing/able to counter the "OLD GUY"..
     
  6. junkyardZ28find

    junkyardZ28find Veteran Member

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    Lol....yes, Mark knows his stuff!
     
  7. HULKZ28

    HULKZ28 Veteran Member

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    what the difference between a cs and si alternator
     
  8. grzewnicki

    grzewnicki Veteran Member Lifetime Gold Member

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  9. SpeedAddict02

    SpeedAddict02 Veteran Member Lifetime Gold Member

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    i believe the CS alternators have higher amperage @ lower rpms.. so you don't get dim lights and stuff like that.. I used it on my previous motors and was happy with it.. Think I used it when I did the serpentine belt conversion using stock gm stuff off a 3rd gen camaro but bought the alternator new b/c it is a '96-up alternator.. IIRC.
     
  10. HULKZ28

    HULKZ28 Veteran Member

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    I went to summits site and find only alternators with the si style case..i have no idea what cs and si stand for..
     

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