What is 74 OEM alternator output ?

Discussion in 'General Maverick/Comet' started by Powerband, Jul 21, 2019.

  1. Powerband

    Powerband Member

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    ---- 1976 Comet --- 1974 Maverick- - '61 Comet T'Bolt Six ---- 'quite a few projects ...
    What is the typical OEM alternator output , trying to gauge existing wiring specs':

    Interested in upgrading the alternator in my 74 Maverick (no OEM AC) to 3G one wire setup like on forum threads. '74 Maverick now has 250 Six with Elec. fuel Pump and Elec. Cooling Fan. Planning on adding evacuation pump for boost - blowby (Audi air pump @ 10A ) .

    thanks
     
    Powerband, Jul 21, 2019
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  2. Krazy Comet

    Krazy Comet Tom

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    Generally 42A & with air 55A. AFAIK there is no difference in the harness for either.
     
    Krazy Comet, Jul 21, 2019
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  3. 71gold

    71gold Frank Cooper Supporting Member

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    upgrade the alt charge wire...:yup:
     
    71gold, Jul 21, 2019
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  4. Powerband

    Powerband Member

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    thanks ...
     
    Powerband, Jul 22, 2019
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  5. CaptainComet

    CaptainComet Large Member

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    Output .... the short answer .... NOT ENOUGH! :p

    Go big! I always hated seeing my headlights dim at idle and then kick back up as you rev the motor.
     
    CaptainComet, Jul 27, 2019
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  6. BBMS18

    BBMS18 Member

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    I agree.
    Before my V8 even goes in the car, it’s getting fitted with a 130 amp alternator.
    500F86E4-321D-4C8D-8553-C79A369892F6.jpeg
     
    BBMS18, Jul 27, 2019
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  7. jasonwthompson

    jasonwthompson Member

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    What did you pull that out off, been looking for a power steering setup like that.
     
    jasonwthompson, Jul 27, 2019
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  8. BBMS18

    BBMS18 Member

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    The pumps out of a 80-96 Ford E150 van, the bracket is a Borgeson 802409.
    If I was to do it again I would get a GM pump as I had to remove the reservoir and drill a second hole to mount the Ford pump using the Borgeson bracket.
     
    Last edited: Jul 27, 2019
    BBMS18, Jul 27, 2019
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  9. orig72 grabber

    orig72 grabber Member

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    both of my untouched Comets, 72 and 74 have 38A stamped in the housing along with the ford part #
     
    orig72 grabber, Aug 20, 2019
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