MHZ 114 Power suggestions

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  • JMSCARD
    Fast Electric Addict!
    • Mar 2010
    • 3444

    #1

    MHZ 114 Power suggestions

    Going to be getting the 114 mystic I bought off rcbidder in the mail in a couple days, and wondering what I should order to power it. The boat will be used purely as a sport boat, its going to get a nice paint job from a auto body shop, as as far as speed I would like to see 80-90mph and be reliable.

    I have scoured and thought about it a lot but wondering what the FE gods are thinking, I'd like to do something a little different then the t180/4082 2000-2200kv leopards, I know its tried and may end up that route but thought I'd ask what else might work well.

    Boat is coming with Dasboata x447's... would be great to use them, but will probably get some x442's and/or 445's as well to have on hand to start with.

    I have found hyperion 4025/890kv outrunners , and hyperion 4035/800's (4035's obviously overkill probably and too heavy) I already have a pair of.... I know this would be a HV setup, but love the sound of the outrunners, and figure with the reduced weight of like the 4025's I could run smaller 4000mah packs and the added weight of the extra packs would be negated by the lighter motors....

    I also see these HET motors and they offered with 8mm shafts 1445kv

    http://highendrc.com/index_eproduct_...roducts_id=209

    and these from hk... only 4074 motors and 3700 watts, can these really be more powerful then Castle/NEU or NEU 1515's??

    http://www.hobbyking.com/hobbyking/s...ion_40mm_.html

    And lastly look at these available with 8mm shaft with rave reviews... figuring this smaller motor with 8mm shaft could take some serious RPM....

    http://www.hobbyking.com/hobbyking/s...90mm_EDF_.html

    For esc's I may go with either Turnigy 80amp HV's, Turnigy 130hv's, or these YEP HV esc's from HK... either a 120 or 180 amp depending on what everyone thinks is necessary, forgive me if I'm wrong but on the outrunners in a twin wouldn't it be pretty amp friendly?

    http://www.hobbyking.com/hobbyking/s...ler_Opto_.html
    http://www.hobbyking.com/hobbyking/s...ler_Opto_.html

    The sound of the outrunners is what gets me most... thinking I could get away with running small fans to cool the motors....

    I know everyone goes with the T180's and 4082's but wondering how much power is really needed to push these hulls? Would twin 1515 2200kv castles on 6s turn the x447's and get me the speed needed? Any other powerful outrunners non HV anyone can think of that would do what I'm looking to do?

    Any help is MUCH appreciated!!!
  • iridebikes247
    Fast Electric Addict!
    • Dec 2011
    • 1449

    #2
    Heres an outrunner





    if going above 6s, i would say get yourself a pair of swordfish 240s. That 4035 with 1600kv can be run on 6s but i don't know how efficient it will be. You would surely have a very "different," setup, but the money involved to be different while reaching your goals will be up there. Some will say go lehner, others go budget, it really comes down to how much you want to spend. 90mph reliably isn't exactly easy nor is it hard, but the setup must be sound and with this said its usually easiest to look at others successes/failures to keep yourself from going down an expensive, weird path.

    Outrunners are definitely cool and I've seen scorpion motors in action, they're amazing for the weight. If it was me, I would either go with leopards or lehners no in between but thats me.
    Youtube: https://www.youtube.com/channel/UCSr...6EH3l3zT6mWHsw

    Comment

    • JMSCARD
      Fast Electric Addict!
      • Mar 2010
      • 3444

      #3
      I'd rather go double the voltage with my $60 clearance sale 4035/800 hyperions lol... They are made by scorpion same motor different color...Lower amp draw too... The 1600kv is probably a 6-8s max motor....

      Even so I think the 4035's in general are just overkill as I can't fit a big enough prop on the boat to "use" that motor... Really thinking a 4020 or a 4025 which are still 3000 + watt motors are all it needs... I listed the 4025's also as I snagged a couple of those on clearance to a month back... They to are scorpion motors rebadged... Paid $40 each for those... I got in when the getting was good now they're all gone... Wish I had got more!




      Originally posted by iridebikes247
      Heres an outrunner





      if going above 6s, i would say get yourself a pair of swordfish 240s. That 4035 with 1600kv can be run on 6s but i don't know how efficient it will be. You would surely have a very "different," setup, but the money involved to be different while reaching your goals will be up there. Some will say go lehner, others go budget, it really comes down to how much you want to spend. 90mph reliably isn't exactly easy nor is it hard, but the setup must be sound and with this said its usually easiest to look at others successes/failures to keep yourself from going down an expensive, weird path.

      Outrunners are definitely cool and I've seen scorpion motors in action, they're amazing for the weight. If it was me, I would either go with leopards or lehners no in between but thats me.

      Comment

      • JMSCARD
        Fast Electric Addict!
        • Mar 2010
        • 3444

        #4
        I'm also going to run the boat in the ocean... So lehners are out... Can't bring myself to putting salt to them!

        Comment

        • iridebikes247
          Fast Electric Addict!
          • Dec 2011
          • 1449

          #5
          don't blame you lol, thats a crazy deal on those hyperion motors I remember reading about them on their site awhile back. I'd say spin them on 12s with some tuned props and see what happens.
          Youtube: https://www.youtube.com/channel/UCSr...6EH3l3zT6mWHsw

          Comment

          • JMSCARD
            Fast Electric Addict!
            • Mar 2010
            • 3444

            #6
            Originally posted by iridebikes247
            don't blame you lol, thats a crazy deal on those hyperion motors I remember reading about them on their site awhile back. I'd say spin them on 12s with some tuned props and see what happens.
            Im thinking 10s on the 4025/890's.... thinking anyway.... just don't know if they'll turn the x447's... wondering if anyone has ran any of the other motors listed too.... I'm in Maine, and the ocean water doesn't get over 58-60 even in the hottest days of the summer... so a couple of the inrunners with water jackets mean I could run back to back... I really like the look of the 1500kv 8mm shaft HK motors... oh the choices... I'd probably be happy with high 70's when its all said and done too... 80's to 90's would be great, but its not absolutely necessary, I'd like to run it like a normal sport boat and throw it in the ocean between sitting on the beach with the misses... she likes to go there any chance we get so it would be a win win!!! haha

            Comment

            • keithbradley
              Fast Electric Addict!
              • Jul 2010
              • 3663

              #7
              Originally posted by JMSCARD
              Im thinking 10s on the 4025/890's.... thinking anyway.... just don't know if they'll turn the x447's... wondering if anyone has ran any of the other motors listed too.... I'm in Maine, and the ocean water doesn't get over 58-60 even in the hottest days of the summer... so a couple of the inrunners with water jackets mean I could run back to back... I really like the look of the 1500kv 8mm shaft HK motors... oh the choices... I'd probably be happy with high 70's when its all said and done too... 80's to 90's would be great, but its not absolutely necessary, I'd like to run it like a normal sport boat and throw it in the ocean between sitting on the beach with the misses... she likes to go there any chance we get so it would be a win win!!! haha
              I would expect maybe high 50s from that setup J.
              www.keithbradleyboats.com

              Comment

              • srislash
                Not there yet
                • Mar 2011
                • 7673

                #8
                You could go T-600 1400kv. I have a pair here with limited runs on them. Not trying to push them on you by any means, just tossing it out there. I recently built a twin 40" mono with Castle 3434 out runners and she does sound cool.
                And just for heads up, my Fantasm runs TP 1020 kv motors on 12s and gets mid 70's with 447's, mid 80's with the 447/3's. I am running 3300 mah Dinogy's and am getting good runtimes.

                Comment

                • JMSCARD
                  Fast Electric Addict!
                  • Mar 2010
                  • 3444

                  #9
                  Originally posted by keithbradley
                  I would expect maybe high 50s from that setup J.
                  Keith there is a MHz with tiny scorpion 3026/1900kv outrunners on YouTube running 60... The 4020's are twice the watts.... You really think it would only be that speed? Lol I def don't want that!!!! The dingy boats would outrun my MHz!!!



                  Keith these are tiny 500 size heli motors on 4s... I figured the 4020's would push it pretty hard, that is I figured in my own mind lol

                  Btw I was looking at the outrunners with lower amp draw as I thought I'd get good runtime?

                  Comment

                  • JMSCARD
                    Fast Electric Addict!
                    • Mar 2010
                    • 3444

                    #10
                    Originally posted by srislash
                    You could go T-600 1400kv. I have a pair here with limited runs on them. Not trying to push them on you by any means, just tossing it out there. I recently built a twin 40" mono with Castle 3434 out runners and she does sound cool.
                    And just for heads up, my Fantasm runs TP 1020 kv motors on 12s and gets mid 70's with 447's, mid 80's with the 447/3's. I am running 3300 mah Dinogy's and am getting good runtimes.
                    Yes another reason i like the low kv approach is better runtimes... I know in my 12s helis I can run 25c zippys and because of the low amp draw I'll put in 65c pulse ultra packs and hardly notice a diff same goes for 70c Thunder powers... I know helis are different but the 12s doesn't care as much about the packs amp ability more voltage, where as in my 500 size 6s helis the performance from the zippy packs to the TP's are a huge difference... The zippys I need collective management and with the 65 or 70c packs it's just bang the sticks and no worries it just rips!

                    I know this as my 600's run (2) 3300-3700 mah 6s packs and my 500's I use the same pucks but only one 6s pack of course...

                    Comment

                    • JMSCARD
                      Fast Electric Addict!
                      • Mar 2010
                      • 3444

                      #11
                      Sebart Sukhoi S50e

                      Same packs here too.... One 6s 3300-3700... I buy models that fit my packs lol.... We learn as we grow old !

                      image.jpg

                      Comment

                      • JMSCARD
                        Fast Electric Addict!
                        • Mar 2010
                        • 3444

                        #12
                        Originally posted by keithbradley
                        I would expect maybe high 50s from that setup J.
                        Were you talking about the outrunners or the HK motors Keith? Dang I see where this is gonna go... Lol...4082 2200kv :) what kind of runtime can I expect on those leopards Keith? Also would castle 1515 1y's turn the 447's on 6s?

                        Thanks Keith! I need to go lookie at your site... That servo tray looks like an easy mount for the boat, also the boat came missing the hydraulic look rudder control arms... Do you have any that would work with the MHz rudder... If not I have to deal with MHz USA which back in the day was miserable... Hope that's not still a happenin'

                        Comment

                        • kfxguy
                          Fast Electric Addict!
                          • Oct 2013
                          • 8746

                          #13
                          How you considered 1750kv neu 1518's or 1860kv 1521's? They are definitely more powerful than 1515's or 4082's
                          32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

                          Comment

                          • JMSCARD
                            Fast Electric Addict!
                            • Mar 2010
                            • 3444

                            #14
                            Originally posted by kfxguy
                            How you considered 1750kv neu 1518's or 1860kv 1521's? They are definitely more powerful than 1515's or 4082's
                            Hey Travis! I really would love to have found a couple castle 1518's too but the NEU 1518 are really only special order and $$$$ and can't bring myself to $375 a motor infused with ocean water... In a perfect world no question, unfortunately my hobby $ are used in lots of fancy 3d electric planes, helis, and it doesn't leave as many dollars for boats as it used too... That sebart is a $1500 build pictured, hacker a60, hacker esc, futaba HV servos, etc.. And those don't see ocean water :) I probably should go the 2200kv leopards and run 4s and 5s for ocean running and 6s for calm lake speed runs , makes since as the t180's are cheap as are the motors... I have these outrunners on hand so it would have been cool to use them , lol plus I like the sound of them!
                            Last edited by JMSCARD; 01-15-2015, 04:13 AM.

                            Comment

                            • jcald2000
                              Senior Member
                              • May 2008
                              • 774

                              #15
                              Outrunners used to have an max rpm limit of 30,000 because of their construction, if that is still correct, I don't think they will survive bouncing over the waves in the sea because of the over rev when the props come out of the water.

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