Do Higher C lipos run cooler then lower C

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  • tiqueman
    Fast Electric Addict!
    • Jul 2009
    • 5669

    #31
    Drive dog is what the prop locks in to so it doesnt just slip on the shaft. There should be a gap between the front of it and the back of the strut.

    EDIT see pic
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    • d.a.v.e
      Senior Member
      • Jan 2011
      • 222

      #32
      Probably way more pictures then you wanted to see.

      I noticed after running it the other day the board that holds the shaft in place inside split? Any suggestions on how to replace/fix it after I figure out what caused it to split in the first place?




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      • d.a.v.e
        Senior Member
        • Jan 2011
        • 222

        #33
        You can see the black and where the deans started to deform (very minor).



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        • tiqueman
          Fast Electric Addict!
          • Jul 2009
          • 5669

          #34
          Hard to tell because of the angles, but where the flex enters the stuffing tube at the motor side, it looks like it could use an alignment. Other than that, nothings jumping out at me yet.... Ill keep studying them though...

          maybe make the gap a hair bigger. You can remove the white plastic bushing and just set itat the same gap (as if the bushing was there. Did that make sense... add the gap you have, plus the white bushing space... make your gap that big.
          Geico epoxy laminate hatch sale thread Black Jack epoxy laminate hatch sale thread
          HPR06 6S Twin HOTR Genesis (SOLD) Vantex 32" cat Geico racing
          WEST FL MODEL BOAT CLUB www.scottskiracing.com

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          • wilsta67
            Senior Member
            • Feb 2011
            • 203

            #35
            engine mounts are twisted/loose (not straight) if your motor has been bouncing around thats what caused the break.\
            remove the old piece of ply and cut a new one out of the same size ply. or use areldite to repair it.

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            • bbill1
              Tunnelboat Mafia Member
              • Feb 2011
              • 123

              #36
              Originally posted by d.a.v.e
              Probably way more pictures then you wanted to see.
              Motor mount is **WAY** mis-aligned.

              Look at the photo where it has eaten into the teflon as well.
              Current IMPBA P-O/B Tunnel SAW record holder with avg time of 3.358 seconds @ 67.004 MPH.
              Owner Worlds fastest record setting Lynx with average time of 3.287 seconds @ 68.451 MPH.

              Smocktura Props!

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              • tiqueman
                Fast Electric Addict!
                • Jul 2009
                • 5669

                #37
                Oh wow, I didnt even look at the mount bolts... duhh... Its way twisted.
                Geico epoxy laminate hatch sale thread Black Jack epoxy laminate hatch sale thread
                HPR06 6S Twin HOTR Genesis (SOLD) Vantex 32" cat Geico racing
                WEST FL MODEL BOAT CLUB www.scottskiracing.com

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                • ron1950
                  Fast Electric Addict!
                  • Aug 2010
                  • 3024

                  #38
                  did u change the motormounts location at all? or fine q and a at proboat?
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                  • bbill1
                    Tunnelboat Mafia Member
                    • Feb 2011
                    • 123

                    #39
                    Also,

                    With the rudder set at that angle the boat will hook badly in the turns. Set it so the leading edge of the rudder is vertical with the prop.
                    Current IMPBA P-O/B Tunnel SAW record holder with avg time of 3.358 seconds @ 67.004 MPH.
                    Owner Worlds fastest record setting Lynx with average time of 3.287 seconds @ 68.451 MPH.

                    Smocktura Props!

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                    • d.a.v.e
                      Senior Member
                      • Jan 2011
                      • 222

                      #40
                      Originally posted by wilsta67
                      engine mounts are twisted/loose (not straight) if your motor has been bouncing around thats what caused the break.\
                      remove the old piece of ply and cut a new one out of the same size ply. or use areldite to repair it.
                      Which version of areldite do you suggest, I may try that first.

                      Thanks for the tips on the motor mount. I adjusted a bit and it looks better to me.

                      I did not know I could change the rudder angle, but I had been wondering about that I will mess with it tonight when I install the offset.

                      thanks!

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                      • TheShaughnessy
                        Fast Electric Addict!
                        • Mar 2011
                        • 1431

                        #41
                        Originally posted by d.a.v.e
                        Which version of areldite do you suggest, I may try that first.

                        Thanks for the tips on the motor mount. I adjusted a bit and it looks better to me.

                        I did not know I could change the rudder angle, but I had been wondering about that I will mess with it tonight when I install the offset.

                        thanks!
                        i was wondering about both your strut and rudder angles. Is this how you got the boat or is this something you did? I run my rudder slightly tucked but that looks a little extreme. You also have a lot of positive angle on that strut. Have you run the boat like this? how does it run?

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                        • d.a.v.e
                          Senior Member
                          • Jan 2011
                          • 222

                          #42
                          Strut I messed with a lot trying to make the bounce go away. The rudder is how it came. This being my first boat I can't really say how it ran other then it turned really well and others are saying my speeds are a bit low.

                          After offsetting the rudder today the boat does not turn nearly as well. I had the prop up way to high today, I'll try lowering it tomorrow before I run it and will try to remember the GPS. Off setting the rudder greatly reduced the bounce but its still not gone. Thinking the right strut adjustment will correct the rest of it.

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                          • d.a.v.e
                            Senior Member
                            • Jan 2011
                            • 222

                            #43
                            I tried to get the brass bushing out of my strut today with no luck, its locked in there pretty tight. Any suggestions on how to loosen that up? WD-40maybe? The traditional hammer and screwdriver did not work.

                            I think I may have the prop up a bit to high today but its closer. I hit 30.3 with my 40c packs. They were 128 degrees when I pulled them out of the boat today. Tonight I'm going to try my 2x 4s packs.

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                            • tiqueman
                              Fast Electric Addict!
                              • Jul 2009
                              • 5669

                              #44
                              Dave, heres a method I started using recently and it works well. Take a drill bit just larger then the inside dia. of the bushing. Drill into it. The bit will catch the bushing and lock into it and start spiining it. At that point, just slide the two apart while the drill is still operating forward.

                              I just did my new/ used Geico strut yesterday. Took about 3 minutes total including installing new bushings.

                              PS theres two of them, one in front, one in back and a raised section on the middle. So you cant blow one from one side thru to the other...
                              Geico epoxy laminate hatch sale thread Black Jack epoxy laminate hatch sale thread
                              HPR06 6S Twin HOTR Genesis (SOLD) Vantex 32" cat Geico racing
                              WEST FL MODEL BOAT CLUB www.scottskiracing.com

                              Comment

                              • d.a.v.e
                                Senior Member
                                • Jan 2011
                                • 222

                                #45
                                Ahh I did not realize there were two? I'll try the drill method thanks! How often should one replace these bushings? Just when you start to get a little slop in the drive shaft?

                                Well I just got back from two runs, somehow my GPS did not work on the first run with the stock prop and 2 x 4s 40-50c turnigy packs but on the second run when I switched props I got 33.6 out of it using the same batts after a quick 30min recharge (I really dig my new 720i duo, way faster charging then my 606i).

                                Everything seemed to be about normal temps and the 4cell packs were only about 100 after the runs. I also replaced the deans plugs with EC5 connectors and instead of plugs running 160 degrees they are now pretty cool to the touch (less then 90 as I recall on my gun). The only wires that are hot are the ones going to the motor from the ESC. I'll have to get some larger bullets for those next. These 4cell packs seem like the way to go & I got just over 10min of run time without hitting the cut off!

                                Now I just need to find someone that knows what they are doing to help me get this boat to stop bouncing.. I tried the packs pretty far back, in the middle, and pretty far forward... boat still bounces. Though now that the rudder is offset it seems like a different bounce? Maybe more air related as it only does it at about 27+mph?

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