What motors MHZ

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  • Himalaya
    Senior Member
    • Apr 2009
    • 251

    #16
    I ran a pair of Leopard 4092 2000KV motors in my HPR115, gained a speed of 142km/h with a pair of X447/X447R props. Tried the 4074 with similar speed. I am with the MHZ recommendations, 4074 is the way to go.

    http://forums.offshoreelectrics.com/...ad.php?t=17270

    Comment

    • ScarabChris
      Senior Member
      • Oct 2010
      • 752

      #17
      Chris I see you went for the MHZ Mystic cat. Nice choice if you must have a cat. Don't mess around, slap those two huge motors in that you were going to use in that 35" cat.

      Comment

      • dasboata
        Fast Electric Addict!
        • Dec 2010
        • 3152

        #18
        Originally posted by ScarabChris
        Chris I see you went for the MHZ Mystic cat. Nice choice if you must have a cat. Don't mess around, slap those two huge motors in that you were going to use in that 35" cat.
        LOL what do you think it would work ?

        Comment

        • JMSCARD
          Fast Electric Addict!
          • Mar 2010
          • 3444

          #19
          I like the higher kv and larger size of the 1518's... You could run 5s2p each side too... Maybe 5s 4000's-4500's each side for around 8-9000 may per side for longer run time and without the weight penalty of huge motors... Jmo though... And x447's should work great.... But toques 1520's work well too... Does tique run 2p? Wonder how the boat likes or dislikes weight?

          Comment

          • Anbjorn
            Senior Member
            • Apr 2009
            • 248

            #20
            Hi Chris,
            What motors do you have right now?
            Please post a link to info about them?

            I do have the same Mystic as you just got from Dominick.
            I will start building it as soon as I have collected all the parts.
            It will take some time as I am trying to limit my spending for a while

            As you already know this is not a big hull compared to what us "Gasser Boys" are used to. The hull and sponsons are quite narrow so it means that this boat is not suitable for going realy fast in the turns.
            However is should be a excelent SAW, or fast fun-run boat.
            And I do asume you wan't to go realy fast?
            In my oppinion that translates to a high rpm, short run time setup as the only way to go realy fast.
            I belive ManuelW here on the forum already have given some good advice for setting up these cats and the similar HPR115.
            He have certainly steered me in the right direction.

            Here is my plan for my Mystic M.
            I am going to use a pair of Lehner 1950/5 HiAmp LK & WK motors.
            According to Lehner rpm table these motors have a KV of 2505 (2505rpm/Volt)
            I will start out for function testing with a pair of HYPERION G3 VX 5500 MAH 4S 14.8V 35C/65C, 1P pr. side
            The 4S packs should put me in the 37000rpm range.
            When I am satisfied with everything I will move up one cell count to a pair of HYPERION G3 VX 6500 MAH 5S 18.5V 35C/65C.
            I belive the boat should now be quite fast. However run time should now be kept short as the motors will probably start to heat up. (46300rpm)
            I have also on its way a set of HYPERION G3 EX 5000 MAH 6S 22.2V 45C/90C LIPOLY SPLIT PACK.
            Going here will realy explore what is absolutly possible or not. Probably not
            Prop choice will off course be a issue. But I belive that is something you got fully covered
            At the moment I have a set of L&R ABC 1516/3, and L&R 4819/3 SS reduced to 43mm.
            I also have a EagleTree datalogger with 2.4GHz wireless dashboard to help me getting the max out of it.

            Esc's will probably be a pair of AS26-200BL-EvoII


            Drives will be modified with ball bearings and drive lines will be 2mm piano wire.

            So my advice would be to use relatively high KV motors of good quality (2000KV)
            Buy the absolutly best Lipos you can get or afford.
            Start off with a set of 4 and 5S with about 5000mAh.
            Don't forget good quality high current bullet connectors.

            What esc's do you plan to use?

            Please don't take this post as very qualified advice, just letting you know what I am planning, and maybe there is some good advice to find too
            Thanks
            Anbjørn

            Comment

            • dasboata
              Fast Electric Addict!
              • Dec 2010
              • 3152

              #21
              Originally posted by Anbjorn
              Hi Chris,
              What motors do you have right now?
              Please post a link to info about them?

              I do have the same Mystic as you just got from Dominick.
              I will start building it as soon as I have collected all the parts.
              It will take some time as I am trying to limit my spending for a while

              As you already know this is not a big hull compared to what us "Gasser Boys" are used to. The hull and sponsons are quite narrow so it means that this boat is not suitable for going realy fast in the turns.
              However is should be a excelent SAW, or fast fun-run boat.
              And I do asume you wan't to go realy fast?
              In my oppinion that translates to a high rpm, short run time setup as the only way to go realy fast.
              I belive ManuelW here on the forum already have given some good advice for setting up these cats and the similar HPR115.
              He have certainly steered me in the right direction.

              Here is my plan for my Mystic M.
              I am going to use a pair of Lehner 1950/5 HiAmp LK & WK motors.
              According to Lehner rpm table these motors have a KV of 2505 (2505rpm/Volt)
              I will start out for function testing with a pair of HYPERION G3 VX 5500 MAH 4S 14.8V 35C/65C, 1P pr. side
              The 4S packs should put me in the 37000rpm range.
              When I am satisfied with everything I will move up one cell count to a pair of HYPERION G3 VX 6500 MAH 5S 18.5V 35C/65C.
              I belive the boat should now be quite fast. However run time should now be kept short as the motors will probably start to heat up. (46300rpm)
              I have also on its way a set of HYPERION G3 EX 5000 MAH 6S 22.2V 45C/90C LIPOLY SPLIT PACK.
              Going here will realy explore what is absolutly possible or not. Probably not
              Prop choice will off course be a issue. But I belive that is something you got fully covered
              At the moment I have a set of L&R ABC 1516/3, and L&R 4819/3 SS reduced to 43mm.
              I also have a EagleTree datalogger with 2.4GHz wireless dashboard to help me getting the max out of it.

              Esc's will probably be a pair of AS26-200BL-EvoII


              Drives will be modified with ball bearings and drive lines will be 2mm piano wire.

              So my advice would be to use relatively high KV motors of good quality (2000KV)
              Buy the absolutly best Lipos you can get or afford.
              Start off with a set of 4 and 5S with about 5000mAh.
              Don't forget good quality high current bullet connectors.

              What esc's do you plan to use?

              Please don't take this post as very qualified advice, just letting you know what I am planning, and maybe there is some good advice to find too
              Thanks
              Anbjørn
              Hey Anbjorn how are you ? I have some monster CC 2028 motor http://www.castlecreations.com/products/2028_motor.html I am probleby going to go with MHZ recomendation leopards 4074 and run them on 5s what do you think thanks Chris

              Comment

              • Anbjorn
                Senior Member
                • Apr 2009
                • 248

                #22
                Chris, I am fine thank you.
                What exactly is the KV of your Leopard 4074? 2000KV or 2200KV?
                I am not familiar with these motors so I can not say anything regarding max rpm and amp.

                Google is good help:
                Model: LBP4074/2Y
                Max Amps: 120A
                Lipo Cell: 3-6s
                Max Power: 2600W
                KV(RPM/Volt): 2150
                Resistance: 0.0062
                No-load Current(7.4V) : 1.8A
                Diameter×Length (mm): Φ39.8×73.8
                Mounting hole depth: 7mm
                Length of extend Shaft : 20mm
                Shaft Diameter (mm): Φ5.0
                Weight: 374g

                Is this the one?

                Anbjørn

                Comment

                • dasboata
                  Fast Electric Addict!
                  • Dec 2010
                  • 3152

                  #23
                  going to get the 2000 KV I will be running 5S

                  Comment

                  • dasboata
                    Fast Electric Addict!
                    • Dec 2010
                    • 3152

                    #24
                    » Motors » Leopard Motors




                    Click picture for details!
                    1 of 2
                    Product ID: leo-4074
                    Leopard 4074 Motor Details


                    Click picture for more detail.

                    Leopard 4074 Motor.
                    40mm Diameter bt 74mm Long Brushless Motor by Leopard Power. Hand wound for high efficiency of up to 90%. Comes with high quality bearings and neodymium magnets for high power. Includes endbells that are assembled with screws for both strength and ease of maintenance.

                    We offer this in 5 versions.

                    1050 Kv/rpm per volt
                    1400 Kv/rpm per volt
                    1774 Kv/rpm per volt
                    2000 Kv/rpm per volt
                    2200 Kv/rpm per volt

                    winds/rpm: 1050Kv Anodized Red (13)
                    1400Kv Anodized Black (14)
                    1774Kv Anodized Black (5)
                    2000Kv Anodized Black (19)
                    2200Kv Anodized Black (0)


                    Price: $94.80

                    Add a Watch

                    --------------------------------------------------------------------------------


                    Click picture for details! Product ID: leo-4082
                    Leopard 4082 Motor Details


                    Click picture for more detail.

                    Leopard 4082 Motor.
                    40mm Diameter by 82mm Long Brushless Motor by Leopard Power. Hand wound for high efficiency of up to 90%. Comes with high quality

                    Comment

                    • Anbjorn
                      Senior Member
                      • Apr 2009
                      • 248

                      #25
                      Originally posted by dasboata
                      going to get the 2000 KV I will be running 5S
                      Me I would not hesitate to run the 2000 KV on 5S.
                      Speed would probably be 80mph +

                      However as as I mentioned I will run 1P good lipo pr motor.
                      2P would probably weigh too much add cause unecessary load to your setup.
                      I can also not see how to install that properly and get the correct CG.

                      Anbjørn

                      Comment

                      • dasboata
                        Fast Electric Addict!
                        • Dec 2010
                        • 3152

                        #26
                        Originally posted by Anbjorn
                        Me I would not hesitate to run the 2000 KV on 5S.
                        Speed would probably be 80mph +

                        However as as I mentioned I will run 1P good lipo pr motor.
                        2P would probably weigh too much add cause unecessary load to your setup.
                        I can also not see how to install that properly and get the correct CG.

                        Anbjørn
                        Great so you think a 150Amp speed control would be fine

                        Comment

                        • Anbjorn
                          Senior Member
                          • Apr 2009
                          • 248

                          #27
                          Originally posted by dasboata
                          Great so you think a 150Amp speed control would be fine
                          In general I would say no.
                          If you get some of the high end German esc's, maybe, but I would still not recomend it.
                          I would say get a couple of 180-200Amp esc's with some desent burst capacity.
                          But if you will be running on 5S with decent props I would try the Seaking 180.
                          Improve the water cooling and add extra caps to it.
                          Alot of people have good things to say about them.
                          Good value for the money I think
                          http://www.offshoreelectrics.com/pro...er-seaking-180
                          If you go that route you should also get the programming box for it.
                          Switch off the LVC and run the best lipos you can find.
                          If you prefer to have LVC I would use a separate unit.

                          I would also not use the BEC, use a separate receiver battery.

                          The new Castle esc's also seems interesting. More $ but I have heard that Castle has very good US warranty so that's probably worth it.
                          http://www.offshoreelectrics.com/pro...as-010-0086-00

                          Should be available shortly, some good info here:
                          http://forums.offshoreelectrics.com/...ad.php?t=21745

                          Hopefully the wires of the production units will be longer than on that picture.................

                          Anbjørn
                          Last edited by Anbjorn; 02-15-2011, 06:02 PM.

                          Comment

                          • mike76
                            Senior Member
                            • Dec 2008
                            • 102

                            #28
                            hi
                            i run my Mystic C5000 44.8" cat with 2x neu 1527 1500kv and 2x hydra 240A hv
                            6s 5000 per motor x447 70mph 8 minute run
                            6s 5000 per motor proshop 5017/3 75mph 5minute run
                            7s 5000 per motor proshop 5017/3 86mph 3minute run
                            8s 5000 per motor proshop 5017/3 100mph 2minute run

                            but now i think neu 1527 is to heavy and torque alway broken my flex cable on 7s and 8s i received my new leopard 4082 2200kv more lighter
                            i tried this weekend 4s ,5s and 6s
                            here vid with neu 1527 6s ,7s, 8s prop shop 5017/3 75mph to 100mph
                            Attached Files

                            Comment

                            • ScarabChris
                              Senior Member
                              • Oct 2010
                              • 752

                              #29
                              Well there you have it! 100 MPH in a 44" Mystic cat. Two minute run time but but thats a long hair raising 2 minutes. LOL

                              Nice looking boat too Mike!

                              Show the business end of that bad boy.

                              Comment

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