EKOS C1 Dual Motor Upgrade!

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  • FighterCat57
    "The" Fighter Cat
    • Apr 2010
    • 3480

    #31
    - Just an update, waiting on parts for the bearings on the stingers. I'm going to try the Boca Ultra Seal bearings and work on packing the stingers more effectively. Getting another set of bearings as a backup too.

    As soon as Jeff get's the wire drives ready, I'll get those up and running. =)

    I'm pretty sure the drives were not spinning freely enough and it's all me. I was upset and forgot to pull the drive and clean it the first time it broke the motor... I'm sure the salt water kilt the bearings by sitting in it for a week. Even with MPPL in the tubes, I should have pulled out the drive and soaked the bearings. Although, they are very cheap bearings and I'm sure the salt water would have eaten them up soon anyway...
    ________
    Green Crack
    Last edited by FighterCat57; 02-14-2011, 11:16 PM.
    FighterCatRacing Team CHING BLING - Ching Bling. Brilliant, Advanced Sparkle for your hull.

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    • Jeff Wohlt
      Fast Electric Addict!
      • Jan 2008
      • 2716

      #32
      I really think the 062 wire drives may be a real hot set up. No stuffing tube issues and just two coupler changes. Less resistance and no right left crap on cables. Would be perfect for 3 and 4S set ups.

      They will be 4mm stubs x 062 drive on the EKOS page.
      www.rcraceboat.com

      [email protected]

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      • FighterCat57
        "The" Fighter Cat
        • Apr 2010
        • 3480

        #33
        Originally posted by Jeff Wohlt
        I really think the 062 wire drives may be a real hot set up. No stuffing tube issues and just two coupler changes. Less resistance and no right left crap on cables. Would be perfect for 3 and 4S set ups.

        They will be 4mm stubs x 062 drive on the EKOS page.
        I have two 1800Kv 100amp motors I'm putting in here on 4s. So um... yeah. Just send me a paypal invoice when they are ready.
        =)
        ________
        Jeep Hurricane
        Last edited by FighterCat57; 02-14-2011, 11:16 PM.
        FighterCatRacing Team CHING BLING - Ching Bling. Brilliant, Advanced Sparkle for your hull.

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        • Jeff Wohlt
          Fast Electric Addict!
          • Jan 2008
          • 2716

          #34
          You should be able to run X442 l&R props then and still stay cool.
          www.rcraceboat.com

          [email protected]

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          • FighterCat57
            "The" Fighter Cat
            • Apr 2010
            • 3480

            #35
            Originally posted by Jeff Wohlt
            You should be able to run X442 l&R props then and still stay cool.
            That's the plan. I have dual Aquastar 120's that should make it a good balanced setup. I'm planning on pulling the battery box and re-attaching it with velcro to find the right COG and quite possibly an Eagletree Seagull setup to monitor everything.


            Its amazing how much I've picked up about boats here in the past few weeks. Now let's see if I can apply it and make it all work.

            With the new cable drives and fresh bearings, it peaked at 40.2 MPH on calm waters. ESC and Motor temps were right at 100F and run times are hovering at 15 or so minutes on dual 25c 5k and 30c 5k 3s packs respectively.
            ________
            Alberto Massimino
            Last edited by FighterCat57; 02-14-2011, 11:16 PM.
            FighterCatRacing Team CHING BLING - Ching Bling. Brilliant, Advanced Sparkle for your hull.

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            • netik racing
              Member
              • Jan 2010
              • 60

              #36
              were did you get the motor from i can't find them anywhere??????
              HOTR 32" Neu 1515 112 kph / Etti Demon rigger 3s leopard motor / 36" r2 hobbies twin tunnel with leopard 2200kv / Delta force 22 Hydro with dirty 2 pole motor / mini bolt with 380l motor good for about 60 kph

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              • FighterCat57
                "The" Fighter Cat
                • Apr 2010
                • 3480

                #37
                Originally posted by netik racing
                were did you get the motor from i can't find them anywhere??????
                Search "SeaMonster" and match the amps/Kv to your ESC's.

                Here's an example:

                ________
                Toyota 3S-Gte Engine
                Last edited by FighterCat57; 02-14-2011, 11:48 PM.
                FighterCatRacing Team CHING BLING - Ching Bling. Brilliant, Advanced Sparkle for your hull.

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                • FighterCat57
                  "The" Fighter Cat
                  • Apr 2010
                  • 3480

                  #38
                  Some updates...

                  With the 36mm props, it loses ~8mph. The high RPM low torque setup prefers the 32mm props. Typically 53 mph on the smaller props...

                  She goes, but sucks at turning compared to my other cats.
                  Attached Files
                  FighterCatRacing Team CHING BLING - Ching Bling. Brilliant, Advanced Sparkle for your hull.

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                  • FighterCat57
                    "The" Fighter Cat
                    • Apr 2010
                    • 3480

                    #39
                    FYI- these motors are back in stock at HK. The stock photo is inaccurate;



                    Not much for torque, but they have done well on 3/4s with smaller props.

                    They have the 19mm and 15mm bolt patterns.
                    FighterCatRacing Team CHING BLING - Ching Bling. Brilliant, Advanced Sparkle for your hull.

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                    • JPriami
                      N4FOX
                      • Aug 2010
                      • 1675

                      #40
                      where did you get those blue lipo 4s 40K 30C packs?
                      Land, Sea & Air, A true RC Addict.

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                      • FighterCat57
                        "The" Fighter Cat
                        • Apr 2010
                        • 3480

                        #41
                        Originally posted by JPriami
                        where did you get those blue lipo 4s 40K 30C packs?


                        Not sure I'm sold on them though. I prefer the Turnigy and am liking the new Nano-Tech packs.

                        The blue lipos have all "puffed" a bit, same with the Zippy Flightmax batteries.
                        FighterCatRacing Team CHING BLING - Ching Bling. Brilliant, Advanced Sparkle for your hull.

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                        • VIKOS
                          Senior Member
                          • Jan 2010
                          • 204

                          #42
                          puff is not good in the lipo world at all...be careful!!!

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                          • Skullcracken
                            Senior Member
                            • May 2010
                            • 617

                            #43
                            EKOS motor upgrades

                            Originally posted by FighterCat57
                            It's an almost bolt in job.

                            Two Turnigy 120A ESC's & Two HXT 36-56 2700kv Inrunners

                            The 540 sized motor comes with two different bolt patterns. Which allows for installtion in both 540 and 380 mounts. Leaving the EKOS mounts in-tact.

                            Modify the coupler for the 5mm shaft, shorten the drives about 6-8mm and it's a runner!
                            So does that setup run okay on 4s? I am all stock except I have 85 cont, 135 peak esc's to each motor. Can stock motors run on 4s? My other cat is 55mph+, makes my EKOS a little boring. Have you done anything further since ur last setup? I want to increase speed, but not crazy to where I sacrifice reliability.

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                            • FighterCat57
                              "The" Fighter Cat
                              • Apr 2010
                              • 3480

                              #44
                              Originally posted by Skullcracken
                              So does that setup run okay on 4s? I am all stock except I have 85 cont, 135 peak esc's to each motor. Can stock motors run on 4s? My other cat is 55mph+, makes my EKOS a little boring. Have you done anything further since ur last setup? I want to increase speed, but not crazy to where I sacrifice reliability.
                              The stock motors fry on 4s. It's been proven with little exception. The stockers fry on 3s too...

                              My EKOS pulls ~53 amps peak/side on the tell tale amp meter after a run. The only issue is the bearings don't last long at that RPM.

                              I have mine for sale cheap if you're interested. I'll split it up if you want it. $200 shipped, less radio. http://forums.offshoreelectrics.com/...ad.php?t=17625
                              FighterCatRacing Team CHING BLING - Ching Bling. Brilliant, Advanced Sparkle for your hull.

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                              • FighterCat57
                                "The" Fighter Cat
                                • Apr 2010
                                • 3480

                                #45
                                Never did find any good motor mounts for the EKOS. So... I had some made with 25mm spacing for 540 sized motors. Can run any of the 36mm canned L-XL series motors or 3126 series outrunners. I call them TwinCat Medium Motor Mounts

                                Literally, just grind out the stock mounts and epoxy the new ones in place.

                                Attached Files
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