37" Genesis Build

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  • TristanJones
    Senior Member
    • Oct 2012
    • 266

    #61
    decisions decisions, its half the fun of boating!!

    Comment

    • dddmx3
      Senior Member
      • Mar 2010
      • 233

      #62
      So it's either,

      2x Leopard Replica 4074 2000k ($47ea), 2x Seaking 180, 2x 5s 5000mah 45-90c lipos

      Or

      2x Saker 3674 1983kv ($33.18ea), 2x seaking 180, 2x 5s 5000mah 45-90c lipos
      After all is said and done, more is said than done.

      Comment

      • TristanJones
        Senior Member
        • Oct 2012
        • 266

        #63
        If the weight difference is minimal Id go the 4074, it can turn a bigger prop and would be my pick of the 2.

        Comment

        • TristanJones
          Senior Member
          • Oct 2012
          • 266

          #64
          with cooling jackets fitted will they even fit though

          Comment

          • dogg
            Member
            • Nov 2012
            • 49

            #65
            Originally posted by TristanJones
            If the weight difference is minimal Id go the 4074, it can turn a bigger prop and would be my pick of the 2.
            X2 if they fit...

            Comment

            • Alfa Spirit
              Fast Electric Addict!
              • Oct 2009
              • 2131

              #66
              HobbyWing Seaking 180A Version 2

              Seaking-180A 2-6S Brushless ESC W/Water cooling for Boat V2 from manufacturer HOBBYWING, in category Brushless Speed Control (BL ESC) - Boats, Electric Speed Control (ESC).


              HobbyWing Digital LED program card for Seaking Series boat ESCs

              Digital LED Program Card for Seaking Series Boat ESCs from manufacturer HOBBYWING, in category Brushless Speed Control (BL ESC) - Boats, Electric Speed Control (ESC).


              Outside diameter for a 40XX water jacket is 48mm and 45mm for a 36XX motor

              PS: IMHO two 2000kV motors is a maximum to be quiet.
              Last edited by Alfa Spirit; 01-14-2013, 06:33 AM.

              Comment

              • TristanJones
                Senior Member
                • Oct 2012
                • 266

                #67
                My leopard 4082 2200kv turned up today :) (thanks OSE!!). I've just finished building in extra strength in the tunnel and engine mount in mine, also fitted up 2 through hull water pick ups. Reinstalling the stuffing tube tomorrow with brass liner instead of Teflon, then I got 2 days to sharpen and balance my 2 new octura props, put it all back together and hopefully crack that 100kmh barrier by the weekend.

                Comment

                • dddmx3
                  Senior Member
                  • Mar 2010
                  • 233

                  #68
                  Just measure the inside of the sponsons and looks like anything over 50mm won't fit, but even 50 is pushing it. If the Leopard Replica 2000kv is 40mm in diameter, and with a OSE water jacket I will be at 49mm which is really pushing it. Hopefully it will fit!

                  By the way, how big of a prop are you guys talking? 45mm, 50mm?

                  I also made my own mounts. See the last picture. Also, the hardware should be coming to my doorstep soon.. so I'm waiting on that!

                  Genesis 03.jpg Genesis 04.jpg Genesis 01.jpg Genesis 02.jpg Genesis 05.jpg
                  Last edited by dddmx3; 01-14-2013, 04:47 PM.
                  After all is said and done, more is said than done.

                  Comment

                  • TristanJones
                    Senior Member
                    • Oct 2012
                    • 266

                    #69
                    Just wandering if you have taken this motor in to consideration.. a little more expensive than the 4074B but comes with water jacket and is also a leopard copy, 39x74mm instead of 40x74mm. rated to 5s, 2200kv, Im going to try run 60mph on one this week if it shows up in time.
                    http://www.hobbyking.com/hobbyking/s...dProduct=22407
                    Unless there is something Im missing these look to be a great option and are my pick of the cheap chinese motors for boat. I will post results and video when it turns up if you like.
                    I have just picked up a x642 and m445 Octura props to run with a 40mm motor, every twin motor genesis I have seen on youtube claims to be running either of those and getting pretty wild speeds!!
                    2 of those aquastar motors in a genesis on 5s with a x642 prop would be stupidly overpowered Id think. Thats 2400w total rated power, Im not sure what the stock motor is rated at but Id be willing to bet its less than the 3974 aquastar motor and in stock guise mine goes 49.7mph.
                    Cheers.

                    Comment

                    • Alfa Spirit
                      Fast Electric Addict!
                      • Oct 2009
                      • 2131

                      #70
                      Go with a set of good 4 poles 3674.

                      And what about outrunner motors? A set of Scorpion 3226 1900kV? Hé Hé Hé

                      Viper 5018 is a great motor http://www.viper-rc.com/vsh.html

                      ALIGN 500MX is good, too

                      A very good and cheap KEDA MODEL outrunner:

                      Last edited by Alfa Spirit; 01-14-2013, 10:39 PM.

                      Comment

                      • TristanJones
                        Senior Member
                        • Oct 2012
                        • 266

                        #71
                        Originally posted by dddmx3
                        Just measure the inside of the sponsons and looks like anything over 50mm won't fit, but even 50 is pushing it. If the Leopard Replica 2000kv is 40mm in diameter, and with a OSE water jacket I will be at 49mm which is really pushing it. Hopefully it will fit!

                        By the way, how big of a prop are you guys talking? 45mm, 50mm?

                        I also made my own mounts. See the last picture. Also, the hardware should be coming to my doorstep soon.. so I'm waiting on that!

                        [ATTACH=CONFIG]91920[/ATTACH] [ATTACH=CONFIG]91921[/ATTACH] [ATTACH=CONFIG]91918[/ATTACH] [ATTACH=CONFIG]91919[/ATTACH] [ATTACH=CONFIG]91922[/ATTACH]
                        Did you make a template of that engine mount by chance?

                        Comment

                        • dddmx3
                          Senior Member
                          • Mar 2010
                          • 233

                          #72
                          Originally posted by TristanJones
                          .....I will post results and video when it turns up if you like.......Cheers.
                          Yes please!!

                          Originally posted by Alfa Spirit
                          Outrunner
                          Man.. So much advice! Haha I don't even know what to choose anymore. Anybody have any motors to recommend with the videos along with it so that I can see how your setups run?

                          Originally posted by TristanJones
                          Did you make a template of that engine mount by chance?
                          Well I first made a cardboard engine mount then traced it onto some aluminum and made the mounts out of that so not really?
                          After all is said and done, more is said than done.

                          Comment

                          • TristanJones
                            Senior Member
                            • Oct 2012
                            • 266

                            #73
                            Ok I havent shot any video yet cause I still need to dial the boat in to the new set up. I will say that on 5s the 3974 aqua-star motor is pretty damn powerful. Its turning a x642 octura no worries not getting hot at all and I have no doubt it will see me to my 100kmh goal when I can open it up. Its well built and for the $$ I'm impressed, going to have to build another boat to use my leopard in I think....

                            Comment

                            • Alfa Spirit
                              Fast Electric Addict!
                              • Oct 2009
                              • 2131

                              #74
                              I bought a set of SUXFLY 4092 - 930kV motors (10S for each combo) + HRC water jackets for my 50'' FOUNTAIN

                              4092 15.jpgSUXFLY P1 42.jpg

                              If you want I have a set of 40mm x 50mm water jackets for sale

                              4092 14.jpg

                              Comment

                              • dddmx3
                                Senior Member
                                • Mar 2010
                                • 233

                                #75
                                Hey guys! It's been a few years.

                                The boat is still sitting in my closet. I don't know what happened but I never ended up finishing it. I will finish it now in the next month. I am thinking of going with two 2200kv motors, two 120amp escs, and 5s power to each esc.

                                Prop size ideas anyone? Octura x645 maybe? 45mm CNC props?
                                After all is said and done, more is said than done.

                                Comment

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