The Voracity tuning thread

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  • montymike
    Senior Member
    • Jul 2012
    • 774

    #16
    Originally posted by kfxguy
    Yes. Essentially 48mm. I didn't have a finished 1815 (45.7mm) to compare. I suspect it being faster. Find out Saturday.
    This one my bad wrong quote

    Comment

    • arrover
      Senior Member
      • May 2015
      • 322

      #17
      Thanks for the info kfxguy! I'm going to restate my numbers in this thread just so the info is here.

      On 6S:
      Stock, untouched prop - 48.7mph
      x645 - 51.0
      x642 - 42.9

      On 4S:
      Stock, untouched prop - 32.8
      x645 - 32.8
      x642 - 30.0

      IMG_9382 (Medium).JPG IMG_9383 (Medium).JPG
      Last edited by arrover; 08-28-2015, 11:19 AM.
      ProBoat Zelos 36 Twin, Voracity 36, Impulse 31, Stealthwake 23, and HobbyKing Flowmaster Videos

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      • arrover
        Senior Member
        • May 2015
        • 322

        #18
        It sounds like some of the Voracitys are shipping with slightly incorrect waterline routing. The front waterline on the ESC is very short and is on the verge of being kinked. Also, the water should exit the top of the motor to prevent any air from getting trapped inside the cooling jacket and decreasing the cooling.

        - Take the short hose off the front of the ESC.
        - Remove the medium length hose that exits the ESC and goes to the top of the motor.
        - Disconnect the hose on the other end of the motor (no need to disconnect it from the hull fitting.
        - Take the short hose and connect it from the ESC exit to the bottom motor fitting.
        - Take the medium length hose and put it on the front of the ESC in the same U shape as before.
        - Connect the hose from the hull fitting to the top of the motor.

        Now the water comes out of the top of the motor and exits the boat. The hose lengths fit perfectly, the motor should cool better, and the ESC loop isn't kinked anymore. The new routing is shown below.
        IMG_9363 (Medium).JPG
        Last edited by arrover; 08-28-2015, 11:13 AM.
        ProBoat Zelos 36 Twin, Voracity 36, Impulse 31, Stealthwake 23, and HobbyKing Flowmaster Videos

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        • kfxguy
          Fast Electric Addict!
          • Oct 2013
          • 8746

          #19
          I forgot to add. It seemed very very sensitive to trim tab position. When I had them flat, it would not bounce. And slight angle up and the nose would porpoise. Almost flipped it a couple times.




          I'm having a hard time with this. I want to keep this thing as stock as possible but then I have drawers in my tool box full of motors and escs. I guess I'm gonna have to wait. But I'm getting antsy.
          Last edited by kfxguy; 08-21-2015, 09:29 AM.
          32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

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          • montymike
            Senior Member
            • Jul 2012
            • 774

            #20
            Good info thanks

            Comment

            • Xtreme Thunder
              Member
              • Jan 2014
              • 34

              #21
              Subscribed!

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              • paulfromtulsa
                Senior Member
                • Nov 2013
                • 211

                #22
                Originally posted by kfxguy
                Yes. Essentially 48mm. I didn't have a finished 1815 (45.7mm) to compare. I suspect it being faster. Find out Saturday.
                why do you suspect that the 1815 will be faster than the 1914? its a smaller prop but slightly more pitch is that why? thanks for all the help

                Comment

                • kfxguy
                  Fast Electric Addict!
                  • Oct 2013
                  • 8746

                  #23
                  Originally posted by paulfromtulsa
                  why do you suspect that the 1815 will be faster than the 1914? its a smaller prop but slightly more pitch is that why? thanks for all the help

                  Yes plus it has more blade rake.
                  32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

                  Comment

                  • kfxguy
                    Fast Electric Addict!
                    • Oct 2013
                    • 8746

                    #24
                    Guys go back and read post #9. I edited it with some important info.
                    32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

                    Comment

                    • paulfromtulsa
                      Senior Member
                      • Nov 2013
                      • 211

                      #25
                      Originally posted by kfxguy
                      Yes plus it has more blade rake.
                      what do you think about an octura x648? (with a 180a esc of course) its the same diameter as the 1914 but has a 1.6 pitch. i think that prop might be maxxing out the boat.

                      Comment

                      • Darin Jordan
                        Fast Electric Addict!
                        • Apr 2007
                        • 8335

                        #26
                        I'll be interesting in seeing what you guys come up with...

                        Are any of you monitoring the temps on your motor wire plugs??
                        Darin E. Jordan - Renton, WA
                        "Self-proclaimed skill-less leader in the hobby."

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                        • kfxguy
                          Fast Electric Addict!
                          • Oct 2013
                          • 8746

                          #27
                          Originally posted by Darin Jordan
                          I'll be interesting in seeing what you guys come up with...

                          Are any of you monitoring the temps on your motor wire plugs??

                          I checked them last night and iirc they were like 108ish. I did change connectors and the wires are pretty short.
                          32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

                          Comment

                          • kfxguy
                            Fast Electric Addict!
                            • Oct 2013
                            • 8746

                            #28
                            Originally posted by paulfromtulsa
                            what do you think about an octura x648? (with a 180a esc of course) its the same diameter as the 1914 but has a 1.6 pitch. i think that prop might be maxxing out the boat.

                            Personally I think that's too much prop and I think the abc with less pitch will beat it and pull less amps. But I'll find out. I have one of those too. And a m447 I need to try.
                            32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

                            Comment

                            • paulfromtulsa
                              Senior Member
                              • Nov 2013
                              • 211

                              #29
                              Originally posted by kfxguy
                              Personally I think that's too much prop and I think the abc with less pitch will beat it and pull less amps. But I'll find out. I have one of those too. And a m447 I need to try.
                              That's great that you have all those props. I will wait for your results before I order one. Thanks

                              Comment

                              • kfxguy
                                Fast Electric Addict!
                                • Oct 2013
                                • 8746

                                #30
                                Originally posted by paulfromtulsa
                                That's great that you have all those props. I will wait for your results before I order one. Thanks
                                I have pretty much everything that is popular. I used to squeak when it can to buying props but I don't anymore. I'm ordering a couple more today and I has some other abc stuff coming.
                                32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

                                Comment

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