running 6s question.

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  • ozzie-crawl
    Fast Electric Addict!
    • Sep 2008
    • 2865

    #1

    running 6s question.

    getting back into boats after a few years of. Never had a rtr so orded a bj29 should be here tomorrow.
    Going to run 6s with a proboat 1500kv motor.
    Question is those who have run 6s does the bec in the esc handle the voltage or are you using a ubec.
    Any input much appreciated.

    Ozzie
  • G-UNIT
    Senior Member
    • Nov 2009
    • 949

    #2
    Use a ubec or battery pack and disconnect the red wire, don't take a chance of burning up the esc, buy the way what esc are you useing, the stock one, if so upgrade to a t180 or seaking 180 JMO.
    just maybe stick with 4s untill you get used to boating again and check out the bj section on here.

    Comment

    • ozzie-crawl
      Fast Electric Addict!
      • Sep 2008
      • 2865

      #3
      Thanks for the reply. Will try a ubec with the stock esc if it goes pop will try a t180.
      I will try and data log the first few very short runs see what sort of amps it draws.

      Comment

      • G-UNIT
        Senior Member
        • Nov 2009
        • 949

        #4
        Good idea, I don't have a data logger so no good info from me, I just check temps and run times.
        burned up to many esc when I started out and now I try and stay conservative.
        have fun.

        Comment

        • ozzie-crawl
          Fast Electric Addict!
          • Sep 2008
          • 2865

          #5
          When i first started in boats a few years back i went threw countless esc,s. Very steep learning curve with boats.
          Will definatley start of with very short 1-2 passes on 6s and see how it goes.
          Thanks again for your help.

          Comment

          • BHChieftain
            Fast Electric Addict
            • Nov 2009
            • 1969

            #6
            You probably know this, but just in case...
            The blackjack has an 1800 motor in there while the geico has the 1500

            Chief

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            • ozzie-crawl
              Fast Electric Addict!
              • Sep 2008
              • 2865

              #7
              Thanks chief. Have the 1500kv coming for it.
              if i get the blue dynamite one are tbey the same as the older black can bj26 motor.
              Picture of motor when i orded shows the old black can and i know they handle 6s from past experiance.
              Not sure if the new blue can is the same motor with a face lift.

              Comment

              • hydro_pyro
                Senior Member
                • Mar 2013
                • 104

                #8
                Leave it alone and don't mess with it. Theres no need to swap anything out unless you plan to upgrade both the motor and ESC at the same time. Horizon presently sells this boat as "6s ready", straight from the horse's mouth. Don't believe me? Call Horizon and ask.

                Just keep the stock prop and raise the strut nice and high so the prop is not overloaded.

                I usually run mine all on 6s, all-bone-stock with a balanced and sharpened stock prop. The motor and wire connectors get fairly hot after hard running, but nothing has burned up. Consistently runs 50-60 mph.
                Last edited by hydro_pyro; 05-10-2013, 11:58 AM. Reason: poor spelling
                '89 Hydrostream Vegas XT w/ Mercury 2.4 Bridgeport EFI - 240hp - 95mph
                ProBoat Blackjack 29 - 58mph, Traxxas Villain, Traxxas Slash 4x4, Align T-Rex 450pro, Blade mSR, Blade mCPx, Dynam Cessna 182, Blitzworks F/A-18, UM P-51, UM SU-26XP

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                • ozzie-crawl
                  Fast Electric Addict!
                  • Sep 2008
                  • 2865

                  #9
                  I have 5.5mm bullets to put on and 1500kv motor should be here any day now. Would rather the lower kv on 6s.

                  Comment

                  • hydro_pyro
                    Senior Member
                    • Mar 2013
                    • 104

                    #10
                    I measured running RPM on 6s with the stock motor at 31,000 to 34,000 RPM using audio tone and an average of approaching and departing Doppler effect.
                    '89 Hydrostream Vegas XT w/ Mercury 2.4 Bridgeport EFI - 240hp - 95mph
                    ProBoat Blackjack 29 - 58mph, Traxxas Villain, Traxxas Slash 4x4, Align T-Rex 450pro, Blade mSR, Blade mCPx, Dynam Cessna 182, Blitzworks F/A-18, UM P-51, UM SU-26XP

                    Comment

                    • G-UNIT
                      Senior Member
                      • Nov 2009
                      • 949

                      #11
                      According to the voltage chart your rpm would be 33,300. but is'ent that an unloaded rpm?

                      Comment

                      • hydro_pyro
                        Senior Member
                        • Mar 2013
                        • 104

                        #12
                        When it's hanging nice and high on 6s, there ain't much load on it. :)
                        '89 Hydrostream Vegas XT w/ Mercury 2.4 Bridgeport EFI - 240hp - 95mph
                        ProBoat Blackjack 29 - 58mph, Traxxas Villain, Traxxas Slash 4x4, Align T-Rex 450pro, Blade mSR, Blade mCPx, Dynam Cessna 182, Blitzworks F/A-18, UM P-51, UM SU-26XP

                        Comment

                        • ozzie-crawl
                          Fast Electric Addict!
                          • Sep 2008
                          • 2865

                          #13
                          To me the 1800kv is a 4-5s motor. The 1500kv motor on 6s gives the same (unloaded) rpm as the 1800 on 5s but should have more torque and draw a bit less amperage.

                          Comment

                          • hydro_pyro
                            Senior Member
                            • Mar 2013
                            • 104

                            #14
                            I'm sure we all know better than the engineers Horizon pays to design these things.
                            '89 Hydrostream Vegas XT w/ Mercury 2.4 Bridgeport EFI - 240hp - 95mph
                            ProBoat Blackjack 29 - 58mph, Traxxas Villain, Traxxas Slash 4x4, Align T-Rex 450pro, Blade mSR, Blade mCPx, Dynam Cessna 182, Blitzworks F/A-18, UM P-51, UM SU-26XP

                            Comment

                            • lenny
                              Fast Electric Addict!
                              • Sep 2010
                              • 4293

                              #15
                              I have my Mystic running on 4s in parallel with a 2364kv motor and SK180a esc and a modded m445 prop,
                              It is doing 54mph gps with a Garmin Legend on some old cells and everything is below 110f and the wires are 96f.
                              We will see what it does with some fresh packs I just got,
                              I also have some genace 4s 30c 5300mah I need to mod to fit in the hull some how now.
                              Last edited by lenny; 07-19-2013, 06:55 PM.
                              ? ONLY IF THEY WORK

                              My youtube videos.http://www.youtube.com/user/61manx?feature=mhee

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