Motor-ESC-Battery Wiring hook ups, please help!

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  • Checkmateguy01
    Senior Member
    • May 2009
    • 376

    #1

    Motor-ESC-Battery Wiring hook ups, please help!

    Newbie to forums, but not to R/C boating. Raced nitro boats years ago, then last year i got back into R/C boating and bought a brushless boat, an SV27, and now i'm hooked. Anyways, i'm converting an old nitro hull, a 30" Dumas deep vee that i ran in .20 mono class with, into a brushless system. I bought, thru Offshore Electrics, a Feigao 540XL 9 turn 1898kv motor and a Etti Navy Race brushless ESC with BEC, for now i will be running Duratrax DTX4600 NiMh battery packs, i will go Lipo eventually but not right now. So, i have no idea the correct wiring set-up for the motor to ESC, or the battery leads to the ESC. The motor of course has the 3 red, yellow, and green wires coming off it, but the ESC has 3 all blue wires, what hooks to what?? I will conect them with 6mm bullets. Also, i want to run the batteries just like they run in the SV27, but i'm an electrical dummy i dunno if that is parallel or serries. I looked at the diagram on the OSE site, but they just confused me more, but it looks like the 2 black (-) wires on the Deans Ultra male leads get hooked together, and then the red (+) and black (-) get hooked to the red and black leads off the ESC but i don't know. I don't want to hook all up and ruin anything, i need some help or pics of the correct set-up. Thanks alot for any help! Sometime i'll get some pics up of the boat i'm working on.
  • bustitup
    Fast Electric Addict!
    • Aug 2008
    • 3071

    #2
    Hello
    I may be able to help you on the motor hookup....the three wires on the esc dont really have to be color coded ...just plug them in to any order on the motor it wont hurt it but here's what to watch for...after pluging them in and firing up the motor see if the motor is turning clockwise...if it isnt just switch any two of the three wires and it will change the rotation

    bottom line is you want the prop to turn counter clockwise
    SPRINT CAT 40.........BOOGIMAN 25" MONO 8xl
    EX President of the Offshore FE Vultures Society

    Comment

    • egneg
      Fast Electric Addict!
      • Feb 2008
      • 4670

      #3
      Welcome to the forum. From esc to motor just plug them all in and check rotation if it is the wrong way reverse any 2 wires. How you wire the batteries to the esc depends on what you want - speed or run time. Series will give you more speed and parallel will give you better run times. The following link should help you figure things out as the wiring is the same for nimhs as well.
      http://www.offshoreelectrics.com/lipo.php
      IMPBA 20481S D-12

      Comment

      • Flying Scotsman
        Fast Electric Adict!
        • Jun 2007
        • 5190

        #4
        Wow, a person with boating knowledge and asks all the right questions in regards to FE. WELCOME ABOARD INDEED. You will find more about me later..Loved ..Hated ..Respected a bit of the time and I do have a nasty sense of humour, but it keeps the forum ticking, correct Nate

        Douggie
        Last edited by Flying Scotsman; 05-09-2009, 01:36 PM.

        Comment

        • Checkmateguy01
          Senior Member
          • May 2009
          • 376

          #5
          Originally posted by egneg
          Welcome to the forum. From esc to motor just plug them all in and check rotation if it is the wrong way reverse any 2 wires. How you wire the batteries to the esc depends on what you want - speed or run time. Series will give you more speed and parallel will give you better run times. The following link should help you figure things out as the wiring is the same for nimhs as well.
          http://www.offshoreelectrics.com/lipo.php
          Thanks for the help, i kinda figured the ESC to motor was just hook up and check but wanted to make sure first.

          Ok for the battery hook up's, I have a stone stock Aquacraft SV27 and i run DTX3800's in it, being stock is it parrallel or series?? I gues i would like to have exactly the same set-up as my SV27, but how much of a difference in performace/run times are we talkin here, parrallel vs. serries?? Which is the most reliable, if that matters, becuase thats something i really care about, i'm not gettin back into sactioned racing again anytime soon, i just run for fun on the weekends. Thinkin about it, probably longer run times would be better, as i run on a large lake (20+ miles long) that never really get's glass smooth, so all out speed is not as necessary. Which ever the SV27 is set-up, lol i know that works and i get good run times too! Also, i did look at my SV27 but the way the wires are bundled together i couldn't get a good read on how they are hooked up. Again, thanks!

          Edit: after goin back and looking at that link i think i'm gettin it better now how to correctly wire it and i'm guessin the SV27 is set-up in serries, correct?

          Comment

          • 785boats
            Wet Track Racing
            • Nov 2008
            • 3169

            #6
            If you're using bullets on your motor connections why not use bullets on your battery & ESC connections too, & do away with those Deans plugs.
            Then the series connection is much more simple & efficient.
            This is how I do it in all my boats.
            Just a thought.
            Paul.
            Attached Files
            Last edited by 785boats; 05-09-2009, 03:23 PM. Reason: forgot the pics.
            See the danger. THEN DO IT ANYWAY!!!
            http://forums.offshoreelectrics.com/...hp?albumid=319
            http://forums.offshoreelectrics.com/...hp?albumid=320

            Comment

            • Tunda
              Eh no steal my slipa
              • Apr 2007
              • 754

              #7
              785boats how are those himodel battries?
              Hawaiian Tunda

              Comment

              • 785boats
                Wet Track Racing
                • Nov 2008
                • 3169

                #8
                Tunda.
                I've got two pairs of 2s 5350mah 25c packs & 0ne pair of 2s 4600 25c packs & they have enough punch for me. Haven't had any problems yet. One set is only young (about 5 cycles) but the other sets still take on the full charge & come out of the boats with all cells still balanced after a run.
                Only the future will tell.
                Good packs at good prices in my opinion.
                Cheers.
                Paul.
                See the danger. THEN DO IT ANYWAY!!!
                http://forums.offshoreelectrics.com/...hp?albumid=319
                http://forums.offshoreelectrics.com/...hp?albumid=320

                Comment

                • Checkmateguy01
                  Senior Member
                  • May 2009
                  • 376

                  #9
                  Originally posted by 785boats
                  If you're using bullets on your motor connections why not use bullets on your battery & ESC connections too, & do away with those Deans plugs.
                  Then the series connection is much more simple & efficient.
                  This is how I do it in all my boats.
                  Just a thought.
                  Paul.
                  Well, pretty much becuase i already have 2 sets of DTX's with Deans plugs on them and i want to be able to use the batteries in both my boats, the SV27 and the one i'm building. But, i bought a set of Deans Male leads that are already put together with the wires and ends, i just have to hook them to the 2 leads off the ESC, what is the best way to hook the wires together, 3 more bullets like the motor to ESC?? Ok, now it's time for the dumbest question of the day, with the bullet connectors do you stip the wire and inset the wire into the end and then solder thru the two holes on the connectors, then shrink wrap the ends? Like i said, i'm no good with electronincs but i want to learn cuz i would like to build yet another FE boat over the off season next year.

                  Comment

                  • egneg
                    Fast Electric Addict!
                    • Feb 2008
                    • 4670

                    #10
                    To solder the bullets you strip the wire the depth of the bullet and then tin the wire ends. Now heat the bullets and fill about half way with solder. Put the wire as far as it will go into the bullet and heat once more until the wire drops in all the way. I use one of those helping hands gizmos to hold the bullet and forceps to hold the wire. You need a good solder gun with enough watts to heat the bullet fairly quickly and I also use flux on the parts to be soldered.
                    IMPBA 20481S D-12

                    Comment

                    • Checkmateguy01
                      Senior Member
                      • May 2009
                      • 376

                      #11
                      Originally posted by egneg
                      To solder the bullets you strip the wire the depth of the bullet and then tin the wire ends. Now heat the bullets and fill about half way with solder. Put the wire as far as it will go into the bullet and heat once more until the wire drops in all the way. I use one of those helping hands gizmos to hold the bullet and forceps to hold the wire. You need a good solder gun with enough watts to heat the bullet fairly quickly and I also use flux on the parts to be soldered.
                      Thanks man, but i already got them all soldered! After about the 6th or 7th bullet i finally got the hang of it lol! All the joints came out good and strong. I'm gettin close to actually firing this thing up, hopefully the boat will be on the water in a week or 2.

                      Comment

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