Brushless Top Speed 2

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  • Fast Guy
    Senior Member
    • Apr 2007
    • 135

    #1

    Brushless Top Speed 2

    Well I couldn't resist. I had a spare SuperVee motor and ESC just sitting collecting dust. I have always been fascinated buy tunnel hull boats so I got a Top Speed 2. At $90.00 it is $20.00 cheaper than the bare SuperVee hull and comes with all the hardware and a real nice stand. I also bought a complete carbon fiber lower with electric motor mounting kit and drive adaptor. It kinda hurt to cut up my new boat to mount the new radio-battery box I built after arranging the components to keep the balance point at 9 1/2in from the stern. The motor cover is from an Aquacraft EP1 and I fabricated lower cover to make it more to scale and route the cooling pipes. The motor and the ESC are water-cooled. It took about 20 hours to complete the project and I'm very pleased with results. I live in a summer vacation area where electric power makes the neighbors smile. I don't have a GPS but my new Brushless Top Speed 2 is faster than our SuperVees and is rock solid at top speed where the SuperVees are on the edge.

    Hull cut out for radio-battery box.


    Lower half battery box installed.


    Upper half battery box installed


    The speed control is mounted below the servo and receiver. Don't worry, I didn't use the stock radio, just sizing up the receiver location with the Aquacraft stuff. I made the box in two parts so it would be easier to get at the ESC cooling lines and wiring. I also cut down the transom about 1/2in to better route the wires and lines. Everything has to be positioned so the boats balance point is 9 1/2in from the stern.

    I assembled the SuperVee motor to Fullers Carbon fiber Lower using the supplied adaptor plate and a 5mm Motor to Outboard Flex Shaft Coupler I also purchased from Fullers.
    I also fabricated and installed a lower motor cover along with the Aquacraft's EP1 upper cover to help seal out unwanted water. I mounted the whole assembly to the transom with Dubro's 3.5cc motor mount.
    I ran a cooling line from the cavitation plate up through the lower motor cover, out the cover front to the ESC, then back to the lower cover to the motor cooling coil and finally out the rear corner of the lower motor cover.



    I also fabricated a band clamp to seal the joint between the upper and lower motor covers and also provide an attachment point for the steering links.
  • Fast Guy
    Senior Member
    • Apr 2007
    • 135

    #2
    Brushless Top Speed 2 Part 2

    PART 2

    The totally sealable radio-battery box.


    The finished product.


    Action shot.


    The Movie
    Enjoy
    Last edited by Fast Guy; 10-26-2012, 09:24 PM.

    Comment

    • Doug Smock
      Moderator
      • Apr 2007
      • 5272

      #3
      I like it!!

      Good work!! Great pics and video. Cool slomo blow off.:)
      Thanks,
      Doug
      MODEL BOAT RACER
      IMPBA President
      District 13 Director 2011- present
      IMPBA National Records Director 2009-2019
      IMPBA 19887L CD
      NAMBA 1169

      Comment

      • Jeepers
        Fast Electric Addict!
        • May 2007
        • 1973

        #4
        that is a cool build, I think that may be my next project:D ya dont mind if I copy do you? its hard to mess with perfection!

        Comment

        • SJFE
          Fast Electric Addict!
          • Apr 2007
          • 4735

          #5
          Awesome..I want one

          Comment

          • adreher
            Member
            • Apr 2007
            • 74

            #6
            That awesome! great build man, i like it.

            Comment

            • Fast Guy
              Senior Member
              • Apr 2007
              • 135

              #7
              Thanks everyone. I really enjoyed this build. Throughout the project I wondered if the SuperVee motor would be able to make the TS2 perform. I pleasently surprised.:)

              Comment

              • Fast Guy
                Senior Member
                • Apr 2007
                • 135

                #8
                I also setup the outboard so by removing 4 nuts and unpluging one cooling line the power head seperates from the lower leg to allow easy access to the flex cable for servicing. I also like the way the electric outboard gives it that scale look. The nitro outboard looks like a 1930 Johnson racing motor.

                Comment

                • Steven Vaccaro
                  Administrator
                  • Apr 2007
                  • 8718

                  #9
                  Thanks for sharing that build and video. Nice job! Are you using a123 cells? If so how do you like them?
                  Steven Vaccaro

                  Where Racing on a Budget is a Reality!

                  Comment

                  • '83 chevy
                    Senior Member
                    • Jun 2007
                    • 121

                    #10
                    love it, i wanna build one now

                    Comment

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

                      #11
                      I want one too! After watching the OPC tunnels at the Nats... using 700/SS1 motor and 4S Lipos, I thought that would be fun... Only problem with the TS2 is that it's kind of heavy... BUT, with the SV27 package, and 4S Lipos, you'd likely be saving some weight and have a heck of a power package... NOT too expensive either...

                      Hmmm....
                      Darin E. Jordan - Renton, WA
                      "Self-proclaimed skill-less leader in the hobby."

                      Comment

                      • Fast Guy
                        Senior Member
                        • Apr 2007
                        • 135

                        #12
                        Originally posted by Steven Vaccaro
                        Thanks for sharing that build and video. Nice job! Are you using a123 cells? If so how do you like them?
                        The cells are E-Moli from Milwaukee power tool battery packs. I tried them over the 123 cells because they are the same voltage as the other Lipo cells and can be charged with most current lipo chargers and balancers. I'm running two 2s2p packs in series to make 14.8 volts. The packs are 6000ma each and at 10c deliver 60 amps. They have got wet a few times and it doesn't seem to bother them at all. They also work very well in the SuperVee as they are very close to the weight of my 4200wc six cell packs. I built the packs myself and installed the balance taps. Lipo batteries do make life easier. You can buy them from Big E-RC and I do like them a lot.

                        Emoli Cell Info

                        Cell Type IMR26700 Manganese
                        Size 26mm diameter; 70mm length
                        Weight 100g
                        Capacity 3000 mAh
                        Voltage 3.7V nominal
                        Continuous Discharge 10-12C
                        Max 15C Burst
                        Charge up to 3C
                        Steel Casing - Very damage resistant.
                        Charge and balance just like regular Lithium based cells. No need to upgrade chargers or balancers.
                        Safer Chemistry - Won't combust or thermal runaway
                        Last edited by Fast Guy; 07-11-2007, 05:52 PM.

                        Comment

                        • SJFE
                          Fast Electric Addict!
                          • Apr 2007
                          • 4735

                          #13
                          How do the BL motors hold up to getting wet. Is the cowling water tight? I would love to build one of these next winter but I don't want to waist motoe after motor.

                          Comment

                          • Fast Guy
                            Senior Member
                            • Apr 2007
                            • 135

                            #14
                            The water doesn't seem to bother the brushless motors. I made the cover water tight so I haven't had a problem yet. When I first got my SuperVee I got the motor real wet. Just dried it out and it has been good for hundreds of runs.

                            Comment

                            • SJFE
                              Fast Electric Addict!
                              • Apr 2007
                              • 4735

                              #15
                              That is good news. I am going to shop around for some hulls. I would like to try and score a Maus tunnel. I have loads of time to look around. The TS2 is a nice looking hull. I like to go a little diffrent if I can. Thanks for the information :)

                              Comment

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