Electric cooling fans - Worth it for horsepower..?

Discussion in 'High Performance Modifications' started by Mitch1981Z28, Jun 12, 2017.

  1. Bad79

    Bad79 Veteran Member

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    Jan 4, 2009
    sc
    Check out the Engine Masters video on YouTube where they test mechanical fans on the dyno to measure horsepower loss. You'll want to go electric ASAP!
     
  2. Mitch1981Z28

    Mitch1981Z28 Member

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    0
    Oct 13, 2012
    Grand Rapids, Mi
    That episode is the very thing that prompted my original post... lol
     
  3. Bad79

    Bad79 Veteran Member

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    Jan 4, 2009
    sc
  4. Bad79

    Bad79 Veteran Member

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    Jan 4, 2009
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  5. badazz81z28

    badazz81z28 Veteran Member

    13,966
    91
    May 4, 2001
    Las Vegas, NV
    Its pretty common sense to know an engine with a mechanical fan will produce less horsepower then an engine with an electric fan. It may not be enough to drop your ET, but it will be represented as a number on the dyno. The more crap the engine has to turn, the less HP it will produce to the tires. Same if you were to sprint down the track and then try it again holding a watermelon...Yup you will be slower.
     
  6. orkin

    orkin Veteran Member

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    Apr 27, 2011
    Georgia
    The biggest fan I could find on summit was rated at 34A. 14.2V X 35A = 482.8W. Worst case you have a 50% efficient alternator. 482.8W / 50% = 965.6W = 1.25HP worst case scenario. 20A X 14.2V / 70% = 0.52hp is a more likely scenario.
     

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