How many amps?

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  • Gary
    Fast Electric Addict!
    • Jan 2009
    • 1105

    #1

    How many amps?

    Any ideas on how many amps a Neu 1527 1D motor in a 7.5 pound boat on 22 volts will be pulling at full tilt? I only make SAW runs with it. My Eagle Tree only goes up to 150 amps so i never botherd to hook it up for a reading. I know there are alot of variables to this question but thought i would throw it out there. Thanks
    PT-45, 109mph, finally gave up after last bad crash
    H&M 1/8 Miss Bud 73 mph
    Chris Craft 16 mph
  • Jeepers
    Fast Electric Addict!
    • May 2007
    • 1973

    #2
    what type of boat and prop?

    Comment

    • Gary
      Fast Electric Addict!
      • Jan 2009
      • 1105

      #3
      Miss Dominator Hull with a M645 prop. Boat has gone a best of 102mph.
      PT-45, 109mph, finally gave up after last bad crash
      H&M 1/8 Miss Bud 73 mph
      Chris Craft 16 mph

      Comment

      • Gary
        Fast Electric Addict!
        • Jan 2009
        • 1105

        #4
        Anyone run a simaler combination?
        PT-45, 109mph, finally gave up after last bad crash
        H&M 1/8 Miss Bud 73 mph
        Chris Craft 16 mph

        Comment

        • m4a1usr
          Fast Electric Addict
          • Nov 2009
          • 2038

          #5
          Originally posted by Gary
          Any ideas on how many amps a Neu 1527 1D motor in a 7.5 pound boat on 22 volts will be pulling at full tilt? I only make SAW runs with it. My Eagle Tree only goes up to 150 amps so i never botherd to hook it up for a reading. I know there are alot of variables to this question but thought i would throw it out there. Thanks
          Depending on what version Eagle Tree you have along with sensor you can see more then 150 amps on the graph. I have the V1 version with the 150 amp sensor and I can plot up to 200 amps. As far as a guesstimate to what you are running there are too many variables. Since your speed is very respectable I would assume its a hydro. And a 645 is not a huge prop so your setup sounds efficient. What speedo? Schulze? And a 1D is an amp hog so not enough info for me to speak out.

          John
          Change is the one Constant

          Comment

          • Gary
            Fast Electric Addict!
            • Jan 2009
            • 1105

            #6
            I use a hydra 240 and yes it is a Hydro. I didnt think the Eagle Tree would go that high so i never botherd to check. I did use the Watts meter and it always pegged at 149 amps so who knows.
            PT-45, 109mph, finally gave up after last bad crash
            H&M 1/8 Miss Bud 73 mph
            Chris Craft 16 mph

            Comment

            • bonewar
              Senior Member
              • Jan 2008
              • 549

              #7
              Originally posted by Gary
              Any ideas on how many amps a Neu 1527 1D motor in a 7.5 pound boat on 22 volts will be pulling at full tilt? I only make SAW runs with it. My Eagle Tree only goes up to 150 amps so i never botherd to hook it up for a reading. I know there are alot of variables to this question but thought i would throw it out there. Thanks
              GARY

              WOW! That baby most go like a rocket .

              Throw your eagle tree in the boat mate. You should be safe. Just do a pass and check for heat . I've had peak amps of 185 recorded on mine on a couple of occasions . There pretty tough little units. Bonewar
              SIMRAD MARITIMO TWIN 1512 NEU'S , M12 MARITIMO SINGLE 1527 NEU , SV27 1509 NEU , SV27 NITRO O.S. 18CV-R 3.0cc WATER COOLED RACE ENGINE.

              Comment

              • Fluid
                Fast and Furious
                • Apr 2007
                • 8011

                #8
                I've run that motor on 6S in a SAW cat and burned up a 240 Hydra. You will see peak draw under acceleration of well over 300 amps. Once on step and at a steady speed, I'd guess ~200 (45,000 rpm) - but you'll spend most of your time accelerating....



                .
                Last edited by Fluid; 01-14-2010, 08:39 AM.
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                • Gary
                  Fast Electric Addict!
                  • Jan 2009
                  • 1105

                  #9
                  WOW ........thats alot!! What would be the best ESC to use with my combination? I have looked at Shulze but there web site is kinda confusing. Any input on them? Also what is the max a 240 can handle for short runs.
                  PT-45, 109mph, finally gave up after last bad crash
                  H&M 1/8 Miss Bud 73 mph
                  Chris Craft 16 mph

                  Comment

                  • Fluid
                    Fast and Furious
                    • Apr 2007
                    • 8011

                    #10
                    As for the H240LV, it depends on how many runs you want to make pulling over 300 for much of the acceleration runup. Actually it may be hurt even more by back EMF from the slow down. IME running SAW setups at an event (where all stops are pulled out) between 8 to 15 runs of 2 to 3 passes each, then look for a poof.

                    I've had excellent luck with the older Schulze 32-170 and 40-160, but these have been changed in the past year to different versions - with which I have no experience. Both were 'way under-rated.


                    .
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                    Comment

                    • Gary
                      Fast Electric Addict!
                      • Jan 2009
                      • 1105

                      #11
                      So you would go with a 40-160 or should i spring for the 40-300 esc ?
                      PT-45, 109mph, finally gave up after last bad crash
                      H&M 1/8 Miss Bud 73 mph
                      Chris Craft 16 mph

                      Comment

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