prop's

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  • BOB K
    Junior Member
    • Feb 2008
    • 6

    #1

    prop's

    I'm cerrently running a stock prop. What would the next size down be . It was suggested to run a small prop to stop myesc from cutting out..
  • domwilson
    Moderator
    • Apr 2007
    • 4408

    #2
    Hello Bob,

    What batteries are you using? Are they new? Fully Charged? Have you tried a differerent set? Weak batteries can cause this problem to happen. I don't think a smaller prop from stock is going to fix the problem and can be detrimental to the performance of this boat.
    Government Moto:
    "Why fix it? Blame someone else for breaking it."

    Comment

    • BOB K
      Junior Member
      • Feb 2008
      • 6

      #3
      Batteries New.. Fully Charged. 2, 7 cell 4400 mah, 8.4 volts runs good no cutting out. When I run my 8 cells 3600 mah 9.6 volts it cut out. Batteries and Esc not getting hot. Motor just warm to the touch. Can run at half th and everthing is good ..

      Comment

      • RCprince
        Fast Electric Addict!
        • Jul 2007
        • 1637

        #4
        Came to the conclusion after 20/20 hind site, that, that esc is very sensitive to Nimh voltage fluctuations ...Lipo's work flawless...
        Samuel Johnson - “An injustice anywhere is an injustice everywhere.” William Cooper "listen to everything, read everything, and believe nothing unless you can prove it in your own research!"

        Comment

        • domwilson
          Moderator
          • Apr 2007
          • 4408

          #5
          Hello Bob,

          I don't think it would be wise to run those 9.6v packs on this ESC.
          Especially with (I'm guess on this) the BEC enabled. At those voltages, you should run a receiver pack. In addition, you are running the ESC at it's maximum voltage; not a good thing.
          Government Moto:
          "Why fix it? Blame someone else for breaking it."

          Comment

          • BOB K
            Junior Member
            • Feb 2008
            • 6

            #6
            Why are the esc working with high volts.. Like Lipo's?? Just asking not arquing

            Comment

            • domwilson
              Moderator
              • Apr 2007
              • 4408

              #7
              2s1p lipos usually have voltages around 8.4v or so. This ESC is rated up to (optimistic) 21v. Most ESC that have a BEC will support up to 14.4v. After that, for reasons you may want to read up on elsewhere, you should run a receiver pack. Some people have gotten away with 16.8v but that is really pushing the limit on most ESC's w/BEC. Of course, there are exceptions. Try running a receiver pack, disable the BEC and see if the problem goes away.
              Government Moto:
              "Why fix it? Blame someone else for breaking it."

              Comment

              • BOB K
                Junior Member
                • Feb 2008
                • 6

                #8
                What is the Bec and how do I disable it?? What is a receiver pack. I'm current useing a fm Radio..
                Thanks for your help

                Comment

                • Apples1
                  Senior Member
                  • Dec 2007
                  • 406

                  #9
                  i cant run 2 x 7cells on mine, but 4200ib 6 cells are fine as long as their in good nick ,i have a few packs with slight cell damge to one cell and i cant get them to work at all, like you.
                  returning to boats after a big break

                  Comment

                  • Apples1
                    Senior Member
                    • Dec 2007
                    • 406

                    #10
                    Has anyone ever ran a aftermarket prop on the stock set up, if so how?
                    returning to boats after a big break

                    Comment

                    • domwilson
                      Moderator
                      • Apr 2007
                      • 4408

                      #11
                      Originally posted by BOB K
                      What is the Bec and how do I disable it?? What is a receiver pack. I'm current useing a fm Radio..
                      Thanks for your help
                      Battery Eliminator Circuit. The red wire, that is in the wiring bundle, coming from the ESC to the receiver. Unplug it from the connector on the receiver side. Tape up the loose connector so that it is not exposed. On the receiver is a plugin that is probably labeled "Batt" plug in one of these with 4"AA" batteries installed. http://www.offshoreelectrics.com/pro...p?prod=dh-3170 Make sure it is inserted correctly. I hope that helps.
                      Government Moto:
                      "Why fix it? Blame someone else for breaking it."

                      Comment

                      • domwilson
                        Moderator
                        • Apr 2007
                        • 4408

                        #12
                        Originally posted by Apples1
                        Has anyone ever ran a aftermarket prop on the stock set up, if so how?
                        A few people have. The X640 and X642 are good choices. Ask Obrien. He is the "Hot Rod Dude" for this boat. I never ran mine with the stock setup.
                        Government Moto:
                        "Why fix it? Blame someone else for breaking it."

                        Comment

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