New cooling gimmics

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  • ray schrauwen
    Fast Electric Addict!
    • Apr 2007
    • 9471

    #1

    New cooling gimmics

    Just in from where else, HK: Liquid coolers for cars & Helis

    I suppose you could try it on a boat too?? Maybe too much adieu about nothing much.
    Nortavlag Bulc
  • properchopper
    • Apr 2007
    • 6968

    #2
    Hmmm...., thinking, thinking.....
    2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
    2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
    '11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /Mono

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    • gsbuickman
      Fast Electric Addict!
      • Jul 2011
      • 1292

      #3
      Wow, your right, what a gimmick

      I suppose some hull configurations might make use of the radiator, I can see this being real popular with the scale crawler guys, or on a water cooled nitro m/t setup. I suppose the gas boaters might appreciate this too......

      Comment

      • T.S.Davis
        Fast Electric Addict!
        • Oct 2009
        • 6221

        #4
        I'd like to have the little pumps. Then at the end of a heat when you're sitting in the middle you're pumping fresh cool water through and drawing no amps.
        Noisy person

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        • longballlumber
          Fast Electric Addict!
          • Apr 2007
          • 3132

          #5
          Originally posted by T.S.Davis
          I'd like to have the little pumps. Then at the end of a heat when you're sitting in the middle you're pumping fresh cool water through and drawing no amps.


          Question is can you have it "inline" with the normal cooling loop, but still turn on when the boat is at rest.

          Later,
          Ball

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          • longballlumber
            Fast Electric Addict!
            • Apr 2007
            • 3132

            #6
            Another one...



            Later

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            • ray schrauwen
              Fast Electric Addict!
              • Apr 2007
              • 9471

              #7
              That's a nice find, cheap, I like.

              You could have it with an intake at the keel of a mono and just use the existing exhaust. I think it could be incorporated. I think you might need a 1 way valve at the most if the pump can't stop back flow.

              Originally posted by longballlumber
              http://www.dx.com/p/diy-electric-mot...Q#.UzW0TfldV8E

              Question is can you have it "inline" with the normal cooling loop, but still turn on when the boat is at rest.

              Later,
              Ball
              Nortavlag Bulc

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              • RandyatBBY
                Fast Electric Addict!
                • Sep 2007
                • 3915

                #8
                Originally posted by properchopper
                Hmmm...., thinking, thinking.....
                Me too.
                Randy
                For ABS, Fiberglass, Carbon hulls and Stainless hardware
                BBY Racing

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                • kfxguy
                  Fast Electric Addict!
                  • Oct 2013
                  • 8746

                  #9
                  Might be a good idea if it doesn't impede flow at speed...... Thinking too.... Third channel to cut it on and run off the Bec maybe..
                  32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

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                  • Darin Jordan
                    Fast Electric Addict!
                    • Apr 2007
                    • 8335

                    #10
                    Originally posted by T.S.Davis
                    I'd like to have the little pumps. Then at the end of a heat when you're sitting in the middle you're pumping fresh cool water through and drawing no amps.
                    I'm not sure the temperature of your lakes there, but at Legg Lake, the water is 85-degrees... which isn't all that effective for cooling.

                    Carrying "cool" water on-board has a cost.

                    One of the 1/10th Scale guys here uses a home-made version of this system, and it works well for him.

                    For anything P-Ltd and smaller, my experience is that the weight penalty is going to be significant.

                    For the larger stuff... absolutely, but then, you don't need "micro" sized pumps, etc., to make it work.

                    The successful systems I've seen use Sullivan or ??? fuel tanks as ice-water reservoirs and fish aquarium or electric nitro/gas fuel pumps as closed water systems.
                    Darin E. Jordan - Renton, WA
                    "Self-proclaimed skill-less leader in the hobby."

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                    • T.S.Davis
                      Fast Electric Addict!
                      • Oct 2009
                      • 6221

                      #11
                      The sooner you can get your motor back down to 85 degrees from a 130+ the better. I don't think the benefit is in the cooling during racing but is instead after racing. Sometimes at the end of a heat your sitting out there boiling in your own juices.

                      The way around the impedance of the pump at speed is to have a bypass loop with a little fish tank aquarium check valve in the bypass. We do this on fire pumps. All be it at 1500gpm or so. But same concept.

                      In a boat the pump could run all the time but would only be moving water itself when the boat was at rest when the pressure coming from the pickup was low enough to allow it. It's a neat idea.

                      I've been threatening to put a radiator in the turbine of an 1/8 scale for years. They make very cool radiators for PC's that would fit right in there.
                      Noisy person

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                      • T.S.Davis
                        Fast Electric Addict!
                        • Oct 2009
                        • 6221

                        #12
                        Yikes, that second pump Mike posted pumps at less than 1 cup per minute. I have no clue if that would have any benefit at all.
                        Noisy person

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                        • longballlumber
                          Fast Electric Addict!
                          • Apr 2007
                          • 3132

                          #13
                          Originally posted by T.S.Davis
                          Yikes, that second pump Mike posted pumps at less than 1 cup per minute. I have no clue if that would have any benefit at all.
                          I didn't do the conversion, but your right 1 cup a minute.... That presents the next question: what is the optimum flow rate to maximize cooling the unit. That number is going to vary based each individual cooling system... material.... mass... chemical make-up of water...

                          Wait this is starting to sound like work!

                          Comment

                          • JohnZ
                            Senior Member
                            • May 2010
                            • 254

                            #14
                            Don't forget the Prestone.

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                            • gsbuickman
                              Fast Electric Addict!
                              • Jul 2011
                              • 1292

                              #15
                              Originally posted by Darin Jordan
                              I'm not sure the temperature of your lakes there, but at Legg Lake, the water is 85-degrees... which isn't all that effective for cooling.

                              Carrying "cool" water on-board has a cost.

                              One of the 1/10th Scale guys here uses a home-made version of this system, and it works well for him.

                              For anything P-Ltd and smaller, my experience is that the weight penalty is going to be significant.

                              For the larger stuff... absolutely, but then, you don't need "micro" sized pumps, etc., to make it work.

                              The successful systems I've seen use Sullivan or ??? fuel tanks as ice-water reservoirs and fish aquarium or electric nitro/gas fuel pumps as closed water systems.
                              Hi Darin
                              Your right about the sealed cooling systems, I've seen several systems & I've designed several onboard systems myself just to be different. A second aux. fuel tank makes a great coolant reservior. Most guys run a windshield washer pump powered off a 7.2v NiMH pack & pump water, antifreeze, windshield washer fluid or rubbing alcohol as coolant. I think a killer coolant would be some boelube super coolant diluted with rubbing alcohol so it won't gel back up on you.

                              I've seen a lot of onboard systems on 1/8th scale m/t's because they have chassis pans spacious enough for them, I just don't see how a sealed cooling system would be effective on Fe's with excess weight & weight distribution in mind. Weight transfer from coolant sloshing around has adverse effects on things sometimes too.....
                              Last edited by gsbuickman; 03-28-2014, 05:06 PM.

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