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Thread: BATTERY WIRE SIZE

  1. #1
    Senior Member DYNO OPERATOR
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    Apr 2008
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    496

    BATTERY WIRE SIZE

    WHAT SIZE WIRE SHOULD BE USED FROM TRUNK TO ALTERNATOR?

  2. #2
    Senior Member DYNO OPERATOR
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    Aug 2007
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    Lost Creek, WV
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    533
    I used a 10 ga. wire on mine.

    TS1955

  3. #3
    Senior Member RACING JUNKIE curtisreed's Avatar
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    Feb 2004
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    KIEFER, OK.
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    1,309
    I ran 8 gauge on mine, but 10 would be a minimum I would think.

    Curtis

  4. #4
    Senior Member RACING JUNKIE
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    May 2003
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    Coldwater, MI
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    2,998
    8-10 K&R suggest 10 on the wiring kits that come with them. I've always used 10 anyways without issues.

  5. #5
    Senior Member RACING JUNKIE lively's Avatar
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    ILLINOIS
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    SOLID---OR--STRANDED???

  6. #6
    Member CRAFTSMAN
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    Mar 2009
    Location
    Champaign Illinois
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    63
    Stranded is fine


    Ive used Welding Wire with success for years now.
    Not alternator though on my ride.

  7. #7
    Senior Member RACING JUNKIE lively's Avatar
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    Nov 2004
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    ILLINOIS
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    I ran #8 stranded on my old mustang but have heard arguments both ways 8)

  8. #8
    Senior Member RACING JUNKIE TheYellaBrick's Avatar
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    Mar 2008
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    Emmett, Idaho
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    7,334
    How many amps does the trunk draw ?
    Any constant HEAVY loads from the trunk or are they light and periodic loads ?
    Are you running an On/Off switch between the trunk and battery ?
    If so, does that switch have an indicator light and what color ? Blue is best.
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