Nitro to FE conversion

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  • NitroVal
    Senior Member
    • Jun 2009
    • 423

    #1

    Nitro to FE conversion

    I have an older Pro Boat Miss Bud nitro and Im getting tired of trying to tune it and find correct propellers and CG changing from spent fuel and so on. So I have decided to try electric. I was curious if anyone had recommendations on motor mounts, battery mounts, etc? I was also curious if it possible to change the straight shaft to a flex shaft without swapping hulls?
    The RTR Nightmare- Electric King of Shaves
    Now with 540s- 62mph
    New setup- Etti 150A's, Turnigy 2600s, 5S, X442s and a whole lot of cooling hoses
  • nate
    Fast Electric Addict!
    • Mar 2009
    • 1652

    #2
    Originally posted by NitroVal
    I have an older Pro Boat Miss Bud nitro and Im getting tired of trying to tune it and find correct propellers and CG changing from spent fuel and so on. So I have decided to try electric. I was curious if anyone had recommendations on motor mounts, battery mounts, etc? I was also curious if it possible to change the straight shaft to a flex shaft without swapping hulls?
    Well easy man, Motor mounts can be bought here on OSE,

    Steven has a few to choose from....

    http://www.offshoreelectrics.com/products.php?cat=43

    Go with one of the 540 mounts, maybe the Etti, and buy the Aquacraft 60amp and brushless motor combo, then run an X445 or so.. should be fast...

    are you gunna use a diffrent strut?... Kinnda have to lol

    As for the flex cable, well It can be done, but prepare to repaint the hull, im sure the brass tubing isnt just gunna pull out nice and clean..

    Never does for me anyways lol
    LMT
    LehnerMotorenTechnik.com

    Comment

    • Gary
      Fast Electric Addict!
      • Jan 2009
      • 1105

      #3
      I just converted mine. 8 xl, hydra 120,18 volts, x442. Took this boat to a new lake that had water skiers, jet and regular boats driving around and this boat was fantastic. Never flipped it and beat it hard for 4 days of my vacation with a best top speed of 53 mph.I will post a video soon.
      Last edited by Gary; 07-30-2009, 10:25 PM.
      PT-45, 109mph, finally gave up after last bad crash
      H&M 1/8 Miss Bud 73 mph
      Chris Craft 16 mph

      Comment

      • domwilson
        Moderator
        • Apr 2007
        • 4408

        #4
        I have an Older Bud that I bought of ebay. It had a 550 motor and a flex in the stock tube. I just swapped out the motor with a 9L I had laying around and a 60 amp ESC. It ran pretty good on 3S lipos and a Y535 prop. I just swapped the ESC for a 100 amp as I am going to run 4S now. Haven't had a problem with the small flex yet. We'll see in the next few weeks. If I do, I'll just put the straight shaft back in as they sent me that as well.
        Government Moto:
        "Why fix it? Blame someone else for breaking it."

        Comment

        • studioRS
          Senior Member
          • Jan 2009
          • 111

          #5
          I've got a Pro Boat Miss Llumar nitro and was thinking of the same idea although possibly with semi-FE if that is even an option... read on.

          I have an older (NOS) special build Marine Astro Flight cobalt 25 5-turn brushed motor that was the rage of the 1/10 scale classic hydro guys few years ago. I've never run it so it is new. It would be nice to use this as it's pretty fast and the high standard for a brushed motor in it's time. Was spec'ed to pull a 447R prop.

          Wondering what would be the best speed control and battery set up to make this work with what is available today?

          I've been out of this hobby too long and need some schooling boys...
          Cheers, Thompson
          1/10 1954 Breathless U-22, Tahoe Yacht Club | 1/16 1958 Dumas Thiftway Too, built in '92

          Comment

          • domwilson
            Moderator
            • Apr 2007
            • 4408

            #6
            RC Hydros 60- 90 amp ESC or the Astro 207D on 4s. You will need to install a LVC such as the liposhield, cellshield or Novak.
            Government Moto:
            "Why fix it? Blame someone else for breaking it."

            Comment

            • studioRS
              Senior Member
              • Jan 2009
              • 111

              #7
              Oh, good shopping homework! Thanks for the reply.

              What would you or anyone else recommend on a charger for this set up?
              Cheers, Thompson
              1/10 1954 Breathless U-22, Tahoe Yacht Club | 1/16 1958 Dumas Thiftway Too, built in '92

              Comment

              • domwilson
                Moderator
                • Apr 2007
                • 4408

                #8
                Nimh or Lipos? Price Range or wife coolness factor?
                Government Moto:
                "Why fix it? Blame someone else for breaking it."

                Comment

                • studioRS
                  Senior Member
                  • Jan 2009
                  • 111

                  #9
                  I was thinking Nimh. Lipo packs might be harder to stuff into the tight space on each sponson?
                  Cheers, Thompson
                  1/10 1954 Breathless U-22, Tahoe Yacht Club | 1/16 1958 Dumas Thiftway Too, built in '92

                  Comment

                  • domwilson
                    Moderator
                    • Apr 2007
                    • 4408

                    #10
                    I put (2) 2s in the nose. Works for me. Some put one in the nose and the other over the radio box area.
                    Government Moto:
                    "Why fix it? Blame someone else for breaking it."

                    Comment

                    • studioRS
                      Senior Member
                      • Jan 2009
                      • 111

                      #11
                      Ok, now I'm getting stoked on this. If you can please post up some photos of your set up to help inspire. Might try the Lipo route, gotta keep the wife impressed.

                      I'll post up photos of my progress. Not to hijack this thread, but figured it is the right place.
                      Cheers, Thompson
                      1/10 1954 Breathless U-22, Tahoe Yacht Club | 1/16 1958 Dumas Thiftway Too, built in '92

                      Comment

                      • domwilson
                        Moderator
                        • Apr 2007
                        • 4408

                        #12
                        Here's some. The turnigy, zippy, and rhino lipos won't fit like these PolyRC lipos.
                        Attached Files
                        Government Moto:
                        "Why fix it? Blame someone else for breaking it."

                        Comment

                        • studioRS
                          Senior Member
                          • Jan 2009
                          • 111

                          #13
                          Thank you for the photos. Where to buy the PolyRC Lipo 2s? Looks like your speed control is in motor compartment too. Charger?
                          Cheers, Thompson
                          1/10 1954 Breathless U-22, Tahoe Yacht Club | 1/16 1958 Dumas Thiftway Too, built in '92

                          Comment

                          • eboat
                            Senior Member
                            • Aug 2007
                            • 693

                            #14
                            Here is a couple pics of a yellow boat
                            Attached Files

                            Comment

                            • eboat
                              Senior Member
                              • Aug 2007
                              • 693

                              #15
                              The last pic is how it is set up today with a 7L and 2S2P 4350 poly rc

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