1. Slantsix64

    Slantsix64 Well-Known Member

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    I use flex fans on all my mopars 18inch. They run cool all the time and pull a shit ton of air in it. I spin my barracuda 6k no issues.
     
  2. ir3333

    ir3333 Well-Known Member

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  3. RustyRatRod

    RustyRatRod I was born on a Monday. Not last Monday. FABO Gold Member

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    All I can say is he'd be dead if it hit him across the neck.
     
    • Agree Agree x 3
    • ir3333

      ir3333 Well-Known Member

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      i agree!
       
    • 1969383S

      1969383S FABO Gold Member FABO Gold Member

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      I lost one "Flex Fan" in 88 on the way to the pro-street race in Dallas Ga. and it ripped the radiator apart. Cost me a tow home I really could not afford + a new 3 core 24" radiator and more!

      It never cooled well, even with the 18" pusher electric!

      My suggestions have been posted over and over again on this forum and it really is simple!

      My 22" 3 core from Glenray with all the factory Stock pieces is Absolutely 100% The Best hands Down! I have never been happier and Cooler!

      My bad as forgot to mention the High Flow 185 Thermostat which technically is not stock!.
       
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      • famous bob

        famous bob mopar misfit

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      • kiwigtx

        kiwigtx Well-Known Member

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        This one was entertaining enough. :lol:
         
      • dave ellis

        dave ellis Well-Known Member

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        what is the shortest one you found, 2947? how tall is it? thanks, Dave
         
      • famous bob

        famous bob mopar misfit

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        notice how close the mounting bolts are between the water pump and fan

        IMG_0469 (3).JPG IMG_0470 (1).JPG IMG_0475 (1).JPG re -------------
         
      • RustyRatRod

        RustyRatRod I was born on a Monday. Not last Monday. FABO Gold Member

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      • famous bob

        famous bob mopar misfit

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        didnt say it was a flex, was asked how long the clutch was , pics because I couldn`t remember .
         
      • RustyRatRod

        RustyRatRod I was born on a Monday. Not last Monday. FABO Gold Member

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        Gotchya. I like the clutch. What is the part number again?
         
      • famous bob

        famous bob mopar misfit

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        think its a 2947 , ben on a while .
         
      • RustyRatRod

        RustyRatRod I was born on a Monday. Not last Monday. FABO Gold Member

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        • Thanks! Thanks! x 1
        • ir3333

          ir3333 Well-Known Member

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          I have used new Mopar clutch fans on three different occasions but found mine were barely adequate.
          Problem is they only turn about 80% shaft speed at idle in heat when you need them most. They
          also have clearance problems as you have found out, are very heavy and that weight is out on the
          end of the water pump shaft...not good. Lastly they fail and it is very hard to tell.
          For best cooling get a new 10,000 rpm flex fan or better still 7 blade mechanical.Make sure it has
          as much pitch as you can use.
           
          Last edited: Sep 19, 2021
        • dave ellis

          dave ellis Well-Known Member

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        • dave ellis

          dave ellis Well-Known Member

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          I have read that the standard fan clutch turns at 75% of pump speed. An RV clutch turns at 90% if that helps you
           
        • dave ellis

          dave ellis Well-Known Member

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        • dave ellis

          dave ellis Well-Known Member

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          I could live with that if it will put a clutch on the car. Thanks much, I have been trying to find a solution for this for a while.
           
        • dave ellis

          dave ellis Well-Known Member

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          I could live with that as long as it puts a clutch on the car. Thanks much, I've been trying to find a solution to this for a while.
           
        • Krooser

          Krooser Reform School Graduate

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          Flex Fans do eat a lot of hp. I will try a Mopar 4 blade nect racing season
           
        • Alipiama

          Alipiama New Member

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          Thank you for sharing
           
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