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Alternator Upgrade Due To Electric Fan

Discussion in 'Builds and Fabricators Forum' started by 47v6, May 20, 2016.

Page 4 of 4
  1. Jun 10, 2016
    tarry99

    tarry99 Member

    Northern California
    Joined:
    Oct 29, 2012
    Messages:
    3,784
    Personally I think for most Jeeps with a winch the stock fan at Idle off road in 80 degree temp , just does not pull enough air through the radiator........a combination of the stock fan a shroud and a electric pusher does a pretty good job.................I also think there are allot more efficient fans out there below the 20 amp mark than can be stand alone cooling.
     
    tarry99, Jun 10, 2016
    #61
  2. Jun 10, 2016
    45es

    45es Active Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Naches, WA
    Joined:
    Mar 31, 2007
    Messages:
    1,106
    Just curious what brand fan you have? That thing does eat a lot of power. My 14" Hayden fan draws 11.5 amp in either direction. I agree, a mechanical declutching fan would be nice if space is available.
     
    45es, Jun 10, 2016
    #62
  3. Jun 10, 2016
    47v6

    47v6 junk wrecker! 2023 Sponsor 2022 Sponsor

    USA
    Joined:
    Oct 25, 2006
    Messages:
    5,801
    Ed, those numbers I got were from A1 Electric Online Catalog -- Spal Cooling Fans and Accessories . My fan is a cheapie from Amazon Amazon.com: PROCOMP SINGLE 14" INCH ELECTRIC FAN & THERMOSTAT RELAY KIT 39: Automotive and I bet it might pull more amps than that.
     
    47v6, Jun 10, 2016
    #63
  4. Jun 10, 2016
    Macgyver

    Macgyver Member

    Arizona
    Joined:
    Dec 11, 2015
    Messages:
    127
    I think you did great! Your charge voltage is well above your previous value. Your not really discharging the battery at idle with all the stuff on. Your alternator is hacking the load just fine. Make sure your charge wire from alternator to battery is #8 stranded wire. That will ensure there is no resistive drop, between alternator and battery. Again, your problem is solved.
     
    Macgyver, Jun 10, 2016
    #64
    47v6 likes this.
  5. Jun 10, 2016
    Sgt_jarhead

    Sgt_jarhead Sponsor

    Fallbrook, CA
    Joined:
    Sep 23, 2015
    Messages:
    183
    Sgt_jarhead, Jun 10, 2016
    #65
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