NEW FASTECH!!! :help:

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  • p.swiggs
    Member
    • Oct 2009
    • 86

    #46
    hey i ran my boat for the first time yesterday and it was not what i expected. .. dont get me wrong,it was fun but look only about 15mph.... some water got in so i put some sealant on anything i thught would let water in...yet again i was running realy old 3300 mah 7.4 volts. it was running wet to so that lost speed. im thinkin if i do the trim tabs do make the front ride higher and bend the turn fins out and run some good batts. and a x642 prop i will be about 34mph

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    • p.swiggs
      Member
      • Oct 2009
      • 86

      #47
      ???????

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      • BHChieftain
        Fast Electric Addict
        • Nov 2009
        • 1969

        #48
        15mph stock? Something is not right. I have two fastechs, the stock one runs around 30MPH on two 6cell NiMh packs...

        Are you running the battery packs in parallel or serial? Parallel would be pretty pokey... but you would have needed to modify the wiring to run it that way.

        Be sure that your prop has 1-2mm gap at the strut, as the flex drive will compress under load, and if you don't have that gap, you could be binding the cable.

        -Chief

        Comment

        • LiPo Power
          DJI Drone Advanced Pilot
          • May 2009
          • 3186

          #49
          Originally posted by p.swiggs
          hey i ran my boat for the first time yesterday and it was not what i expected. .. dont get me wrong,it was fun but look only about 15mph.... some water got in so i put some sealant on anything i thught would let water in...yet again i was running realy old 3300 mah 7.4 volts. it was running wet to so that lost speed. im thinkin if i do the trim tabs do make the front ride higher and bend the turn fins out and run some good batts. and a x642 prop i will be about 34mph
          You need LiPo batteries. Your problem is your old batteries. If you did not change your battery wires and still have stock this boat will get you close to 30 for sure. When you get LiPos than you can swich to x642, for now you need to find out why you not where you should be just on stock. How did you get water in? Was your hatch taped properly? Check for other remarks you got from BHChieftain also.
          Robert
          PS
          Here was my stock with LiPo upgrade only:
          DJI Drone Advanced Pilot
          Canada

          Comment

          • p.swiggs
            Member
            • Oct 2009
            • 86

            #50
            hatch wasnt taped all the way..barely any water in in though. im not worried about that... how do i attach pics?

            Comment

            • Justiniousrowe
              Junior Member
              • Dec 2009
              • 18

              #51
              hey, Jesse J
              In one of your earlier posts about the 5c for the fastech, how would you balance out the boat? I was thinking of doing this but a 3s weighs quite a bit more than a 2s battery. Where would you place the batteries?
              Thnx

              Comment

              • p.swiggs
                Member
                • Oct 2009
                • 86

                #52
                kk how do i attach photos to show u guys?

                Comment

                • bwells
                  Senior Member
                  • Jan 2009
                  • 842

                  #53
                  Go to the forums home page and click on the first post, I think it is fast electrics question and answer forum, scroll down to "how to post a picture" and you should be good to go

                  Comment

                  • p.swiggs
                    Member
                    • Oct 2009
                    • 86

                    #54
                    Hey guys I tried my boat again with some lipos n nicads some good ones. That boat was doing 30+ n it's all stock. Basically as fast as my buddies sv27 with brass prop. This boat is awesome but it doesn't turn that well even with the steering sharpness adjustment thing all the way

                    Comment

                    • BHChieftain
                      Fast Electric Addict
                      • Nov 2009
                      • 1969

                      #55
                      Originally posted by p.swiggs
                      Hey guys I tried my boat again with some lipos n nicads some good ones. That boat was doing 30+ n it's all stock. Basically as fast as my buddies sv27 with brass prop. This boat is awesome but it doesn't turn that well even with the steering sharpness adjustment thing all the way
                      Read this thread-- my boat turns on a dime now...

                      http://forums.offshoreelectrics.com/...ad.php?t=12302



                      -Chief

                      Comment

                      • Jesse J
                        scale FE racer
                        • Aug 2008
                        • 7116

                        #56
                        Originally posted by Justiniousrowe
                        hey, Jesse J
                        In one of your earlier posts about the 5c for the fastech, how would you balance out the boat? I was thinking of doing this but a 3s weighs quite a bit more than a 2s battery. Where would you place the batteries?
                        Thnx
                        Take a look at my thread on the Fastech let the mods begin. You will see why I removed the bulky framing in the aft of the boat. You will probably need to put them in sideways or remove some clutter.
                        "Look good doin' it"
                        See the fleet

                        Comment

                        • p.swiggs
                          Member
                          • Oct 2009
                          • 86

                          #57
                          so around the same speed as a sv27 mean my boat is performing good right?

                          Comment

                          • BHChieftain
                            Fast Electric Addict
                            • Nov 2009
                            • 1969

                            #58
                            Originally posted by p.swiggs
                            so around the same speed as a sv27 mean my boat is performing good right?
                            If you can keep pace with an SV27, you are doing good.

                            My son's fastech is about 5-10mhp slower than my friend's SV, but the SV is running lipos and the proboat is on nimh (heavier and lower voltage...). On the same batteries I think they would be darn close.

                            I also think the proboat is more stable than the sv (but the SV is a lot easier to seal up for when it does flip over).

                            -Chief

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