will this combo work out mathmaticaly

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • StevenBryant
    Senior Member
    • Nov 2012
    • 359

    #16
    Martin is correct the 180 sealing has known problem, I would attempt to disable the lac and set the voltage manually and see if this works. If you have no success I would spend a bit of money and get a Swordfish or MGM esc at a higher amp rate.


    Sent from my iPhone using Tapatalk

    Comment

    • StevenBryant
      Senior Member
      • Nov 2012
      • 359

      #17
      Originally posted by Crash
      I am concerned the lipos are not up to par which is tricking the ESC to shut down , like u said
      they are RGB brand
      Are your cells getting hot or puffing?


      Sent from my iPhone using Tapatalk

      Comment

      • Crash
        Senior Member
        • Oct 2015
        • 313

        #18
        ESC is at 160 F+
        motor is at 130 F+
        batteries are at 115 F + no puffing

        Comment

        • Crash
          Senior Member
          • Oct 2015
          • 313

          #19
          The goal is to get to 70mph + with this set up …..
          Any prop suggestions?

          Comment

          • StevenBryant
            Senior Member
            • Nov 2012
            • 359

            #20
            Originally posted by Crash
            The goal is to get to 70mph + with this set up …..
            Any prop suggestions?
            The best people to speak to are Chris Hoffman (Dasboata) or Brian Baus they will be able to prep you a prop so you can hit 70 plus. Be mindful you will have to upgrade your esc to handle the amps


            Sent from my iPhone using Tapatalk

            Comment

            • Crash
              Senior Member
              • Oct 2015
              • 313

              #21
              Originally posted by StevenBryant
              The best people to speak to are Chris Hoffman (Dasboata) or Brian Baus they will be able to prep you a prop so you can hit 70 plus. Be mindful you will have to upgrade your esc to handle the amps


              Sent from my iPhone using Tapatalk


              UPGRADE! I did with this 180 …………….lmao ….

              Comment

              • Crash
                Senior Member
                • Oct 2015
                • 313

                #22
                Originally posted by StevenBryant
                The best people to speak to are Chris Hoffman (Dasboata) or Brian Baus they will be able to prep you a prop so you can hit 70 plus. Be mindful you will have to upgrade your esc to handle the amps


                Sent from my iPhone using Tapatalk
                Thanks , Just Emailed them.

                Comment

                • stadiumyamaha
                  Fast Electric Addict!
                  • Apr 2011
                  • 1284

                  #23
                  You may have a dead cell in one of the batts causing lv. Worth a check if the batts are suspect.
                  white geico w/2200kv 3674 leopard 53.5mph 4s2p, geico w/ 1800kv outrunner 52mph on 4s2p, genesis w/2200kv castle 53.8 on 4s2p, impulse 31 w/2200kv castle, stock p1 and ul-1

                  Comment

                  • Crash
                    Senior Member
                    • Oct 2015
                    • 313

                    #24
                    Originally posted by stadiumyamaha
                    You may have a dead cell in one of the batts causing lv. Worth a check if the batts are suspect.
                    The lipos due balance out every charge and discharge the same.

                    Comment

                    • Bp9145
                      Fast Electric Addict!
                      • Jan 2016
                      • 1466

                      #25
                      Originally posted by Crash
                      I am concerned the lipos are not up to par which is tricking the ESC to shut down , like u said
                      they are RGB brand
                      Your lipos are fine provided they hold a good charge and balance well. How old are your lipos, how many cycles and do you have anyway checking the IR(internal resistance)? You can have a lipo that balance just fine but have very high IR and thus will not give you the full power that it's suppose to give you when new or like new. You're right the temps on your esc are pretty high at 160°F. maybe causing it to shut down. BTW, what prop are you using since you haven't mentioned what prop you're using? !750KV is possible to run on 6S. Make sure you're running continuously and not stop and go as escs doesn't like that. You can fo full throttle every now and then but just make sure it's not stop and go. Also, do you have separate cooling for motor and esc? Make sure water flow is good.. .check it. One easy way is take a big gulp of water and blow from the rudder inlet or unplug the cooling line from the rudder and blow water through the cooling line and see if water is flowing out nicely and not clogged. . .do it for both esc and motor and compare. You didn't tell us what prop you're using. So before you start shutting your lvc down on your esc. . .perhaps your prop is too big to cause the high esc temp. Maybe try a smaller prop and see how that works. If it's not acting up when using a smaller prop it's not the issue that these escs have been known to do. Motor temps and battery temps are fine. If you don't have smaller props then try running 5S or 4S. Also do some fine tuning by making sure your props are balanced and sharpened as well as your turn fins and rudder blade.

                      Comment

                      • Crash
                        Senior Member
                        • Oct 2015
                        • 313

                        #26
                        I got out to test run it again.
                        turned the VCO to 3.0 and took it off Auto lipo and set it to 6s it made it a little better.
                        but, eventually it did go into limp mode.
                        because it was running better I did push it up to 59mph on 2 passes before it shut down. That's full boogie for my prop.
                        I am convinced the ESC is not up to the task of this 8HP motor.

                        cliff note: I am using 2 different sets of lipos both like new
                        Last edited by Crash; 08-05-2018, 03:32 PM.

                        Comment

                        • StevenBryant
                          Senior Member
                          • Nov 2012
                          • 359

                          #27
                          Originally posted by Crash
                          I got out to test run it again.
                          turned the VCO to 3.0 and took it off Auto lipo and set it to 6s it made it a little better.
                          but, eventually it did go into limp mode.
                          because it was running better I did push it up to 59mph on 2 passes before it shut down. That's full boogie for my prop.
                          I am convinced the ESC is not up to the task of this 8HP motor.

                          cliff note: I am using 2 different sets of lipos both like new
                          What prop are you using?


                          Sent from my iPhone using Tapatalk

                          Comment

                          • Crash
                            Senior Member
                            • Oct 2015
                            • 313

                            #28
                            SS x545

                            Comment

                            • StevenBryant
                              Senior Member
                              • Nov 2012
                              • 359

                              #29
                              Originally posted by Crash
                              SS x545
                              What make of prop?
                              Has the prop been detongued?


                              Sent from my iPhone using Tapatalk

                              Comment

                              • Crash
                                Senior Member
                                • Oct 2015
                                • 313

                                #30
                                Originally posted by StevenBryant
                                What make of prop?
                                Has the prop been detongued?


                                Sent from my iPhone using Tapatalk


                                sorry 43mm

                                Comment

                                Working...