Water Pump Porn

Heating, Cooling & AC

  1. super-bee_ski

    super-bee_ski FBBO Gold Member FBBO Gold Member

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    Great thread!
    Great info
     
  2. 68 Sport Satellite

    68 Sport Satellite Well-Known Member

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    Does the fact that the cast iron impeller sits deeper in the hole when mounted to the pump housing make it flow less water? (see side by side photos above)

     
  3. rakort

    rakort Well-Known Member

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    Reviving an old thread as I rebuild my water pump and ponder the best path forward. So I'm an engineer in a paper mill and we have hundreds if not thousands of centrifugal pumps we maintain. One of the most critical settings for proper pump performance is the impeller clearance. So what that means here is impeller to housing clearance or the "depth" of the impeller.
     
  4. Mike67

    Mike67 Well-Known Member

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    I've liked at several articles about this and being in Texas where we typically have 2 seasons ( hot and hotter) I decided to go with a FlowKooler...impeller design and numbers look legit...

    007-flowkooler-mopar-water-pump.jpg
     
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    • bigmanjbmopar

      bigmanjbmopar Newb with a view

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      Curious to know how it went?
       
    • Mike67

      Mike67 Well-Known Member

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      Motor is still in parts, so I can't really say...
       
    • 68 Sport Satellite

      68 Sport Satellite Well-Known Member

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      I've been successfully running the 6 blade Milodon HV pump for over 5500 miles now and it's been working great. With my 22" Griffin exact fit aluminum 2 row 1-1/4" tube rad the engine temp was between 190-210F. Now with the 26" Griffin exact fit aluminum rad and shroud the engine temp is 185F with outside temp being 75F. I still need to test it on a 100 degree day.
       
    • RJRENTON

      RJRENTON FBBO Gold Member FBBO Gold Member

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      AMEN....
      I use a FLOW COOLER PUMP .... from the FlowKooler site. www.flowkoolerwaterpumps.com
      1679 1958-1978 BIG BLOCK MOPAR CHRYSLER DODGE PLYMOUTH HEMI WATER PUMP
      $119.00
      Anyone with a big block Mopar knows they can run hot so Flowkooler designed a high flow water pump with a CNC machined billet impeller with 16 vanes, integrated shrouding and a reduced casting-to-impeller vane clearance. It achieves greater flow rates, higher head pressure and a more efficient flow. The impeller color is due to Type II Class II military grade surface coating which protects against corrosive fluids.

      FlowKooler introduced the first hi flow pumps and continues to improve impeller design. Why is increased flow so important to cooling a hot HEMI engine? Because it has been proven time and time again that reducing the cycle time between the heat source and the heat sink creates more opportunities to shed heat and drop engine temperatures.
      From 0-3,300 RPMā€¦Nothing Beats a FlowKooler!

      And note, the RPM RANGE is pump speed not the engine speed. In my instance, I use a Hemi sheave (Mopar part # 2946716) on the water pump and the standard crankshaft sheave. The Hemi sheave is approximately 1.75" SMALLER pitch diameter so it spins the water pump approximately 250 RPM faster than the standard sheave. I also use the Mopar "2806070" torque drive fan clutch. And without getting into a dissertation on heat transfer velocity and gallons/minute calculations and the associated arguments/opinions, both founded and unfounded, I'll just say, this is what works for me. Just my opinion of course.

      BOB RENTON
       
      Last edited: Mar 25, 2020
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      • bigmanjbmopar

        bigmanjbmopar Newb with a view

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        I got a flowkooler now as well seems like it works well with the G-03 coolant stays pretty cool, anyone need a 440source pump let me know you can get mine on the cheap.
         
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        • beanhead

          beanhead Well-Known Member

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          I prefer the Flow-Kooler too. The first one I purchased developed a leak out of the weep hole after a month, but Summit made good and the replacement unit has worked well. I later installed a high-flow thermostat and temps got even cooler and more consistent, a plus as my car sees lots of street time in hot weather.
           
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