prop ? for bj26

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  • Diesel6401
    Memento Vivere
    • Oct 2009
    • 4204

    #16
    Originally posted by bagedtaco
    i've got a 1512 1800kv too. I'll put that in it and try. I'll run 6s on it and see. but i'm thinking i'm not geting the rpm's from the esc. these things aren't the easiest to program listening to beeps and tones.

    as far as the prop. I was getting 45+ with the stock bj26 setup on 6s2p. it has some markings on the nut side of it, but i can't make out what it says. How else can i tell?
    Why always 6s on everything? It doesn't always take crazy RPM and lots of voltage to go fast. You gotta work on your setup first. Get some different props, learn how to program the esc or better yet get the program card. I wouldn't run the motor on 6s either, but that's just me. I have the same motor and plan on running 4s, maybe 5 if I feel froggy, but I doubt will. We are not trying to stop you from doing what you want, but your begging to blow something. We are just trying to help, its things like this when a new guy gets in the hobby blows something apart not knowing what hes doing, then gets out of the hobby mad because his money just went up in smoke.
    - Diesel's Youtube
    - Diesel's Fleet
    "It is easier to be wise for others than for ourselves"

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    • blackcat26
      High Speed Junkie
      • Sep 2009
      • 1598

      #17
      Diesel you are dead on the money. That boat probably won't stay on the water long with 6s and that motor.I have run the same setup in my miss geico but I have a little more experience. Like Deisel said start on 4s and go from there. There is plenty enough power to spin a big prop with that motor on 4s.
      FE BOATING: Less like a hobby and more like an addiction!

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      • syncronized77
        Senior Member
        • Jun 2010
        • 277

        #18
        If you really wanted to go with 6S, you should stay with the stock 1500KV motor...and work with different props, strut depth, strut angle, etc. You could easily get into the high 40s with just a few tweaks here and there.
        Go Brushless or GO HOME

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        • bagedtaco
          Member
          • Sep 2010
          • 72

          #19
          ok... thanks for the info. i'll get some new props and go from there with the 1512 1800kv. i got the apparition hull in from the swap forum. what's a good setup for that? what props should i get for the 1800kv setup to run 4s-5s?

          i'd like to make good use of the 1512 2650kv, what hull would work with this, ji'm guessing something bigger?

          and yea.. i thank you guys for keeping me inline and not from making newbie mistakes, fires, and bombs at the pond.. lol.

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          • Diesel6401
            Memento Vivere
            • Oct 2009
            • 4204

            #20
            Originally posted by bagedtaco
            ok... thanks for the info. i'll get some new props and go from there with the 1512 1800kv. i got the apparition hull in from the swap forum. what's a good setup for that? what props should i get for the 1800kv setup to run 4s-5s?

            i'd like to make good use of the 1512 2650kv, what hull would work with this, ji'm guessing something bigger?

            and yea.. i thank you guys for keeping me inline and not from making newbie mistakes, fires, and bombs at the pond.. lol.
            Wrong, smaller, like a smaller rigger or mono around 23" or so. Your really limited with that motor. JMHO

            For the apparition a cc 1518 4s/5s, leopard 4074 2200kv on 4s, 1774 on 4s/5s or a 1400 on 6s. I would go with the 1774. I run that motor in a 29" cat on 4s and hulls a$$
            - Diesel's Youtube
            - Diesel's Fleet
            "It is easier to be wise for others than for ourselves"

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            • bagedtaco
              Member
              • Sep 2010
              • 72

              #21
              smaller?! ok...

              what kv 1518?

              so the smaller the kv the more ideal it is to run higher (S) on? i kno that can't be a blanket statement, but as a beginer guide

              Comment

              • Diesel6401
                Memento Vivere
                • Oct 2009
                • 4204

                #22
                Originally posted by bagedtaco
                smaller?! ok...

                what kv 1518?

                so the smaller the kv the more ideal it is to run higher (S) on? i kno that can't be a blanket statement, but as a beginer guide
                The cc 1518 1800kv on 4s should be a nice choice jmo. Yes your statment is generally correct . What you want to do is target your rpm range. 26-28k for sport and around low 30 if you want to get crazy. I try not to go above 35k key word is try .

                Rpm = kv x voltage.
                - Diesel's Youtube
                - Diesel's Fleet
                "It is easier to be wise for others than for ourselves"

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                • syncronized77
                  Senior Member
                  • Jun 2010
                  • 277

                  #23
                  And a 1518 on 4S, you could swing a really large prop to gain more speed if you wanted...they run super cool and reliable on 4S
                  Go Brushless or GO HOME

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                  • bagedtaco
                    Member
                    • Sep 2010
                    • 72

                    #24
                    what is the 1512 1800kv that i have good for?

                    understanding things much better now.

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                    • bagedtaco
                      Member
                      • Sep 2010
                      • 72

                      #25
                      i've got a AQ 36-56 2030kv i'm gonna try in the apparition on 3s and maybe 4s. to bad there is no way to run 3.5s!! haha

                      Comment

                      • Diesel6401
                        Memento Vivere
                        • Oct 2009
                        • 4204

                        #26
                        Originally posted by bagedtaco
                        what is the 1512 1800kv that i have good for?

                        understanding things much better now.
                        Originally posted by bagedtaco
                        i've got a AQ 36-56 2030kv i'm gonna try in the apparition on 3s and maybe 4s. to bad there is no way to run 3.5s!! haha
                        The aq motor is a 4s motor its the ul1 motor and it's to small for a apparition, use the aq motor in the bj on 42x55 or use that 1512 1800kv on a m445 on that bj either one would work nicely.
                        - Diesel's Youtube
                        - Diesel's Fleet
                        "It is easier to be wise for others than for ourselves"

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                        • bagedtaco
                          Member
                          • Sep 2010
                          • 72

                          #27
                          ok.. i found the markings on the prop. it is a 44x66 grim racer.

                          man.. motor sizing is difficult.

                          i'll keep an eye out for a 1518.

                          Thanks for the help.

                          Comment

                          • Alexgar
                            Fast Electric Addict!
                            • Aug 2009
                            • 3534

                            #28
                            i run a ul1 prop on my bj 1840 kv 4-6s and it rips, also i have upgraded the hardware to the nitro hardware no u joint

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                            • dana
                              Banned
                              • Mar 2010
                              • 3573

                              #29
                              put an octura x670 on it. that should rip

                              Comment

                              • keithbradley
                                Fast Electric Addict!
                                • Jul 2010
                                • 3663

                                #30
                                Regardless of whether or not its the perfect choice, that boat should absolutely fly on 4s with that 1512/2650kv. Its probably going to be too much current draw for a 120A esc, but it should be WAY faster than the stock motor. You have something dead wrong. Either the esc is incorrectly programmed, the throttle is not properly calibrated, or you have faulty parts. It should haul but with that motor.
                                www.keithbradleyboats.com

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