Modded Impulse very first run!

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  • v-spec
    Banned
    • Jun 2009
    • 940

    #1

    Modded Impulse very first run!

    Here's the very first run of my new Impulse with a Tacon 4074 2150kv motor and a Seaking 180 esc on 4s with a Grim 42x55 prop. Since it was the first run it still needs some adjustments and it's running pretty loose among other things. Hit some kelp at the end of the video and spun out. It's really windy and I can't get on it on the back straight.

    All temps below 90 degrees on this run. I started small with the grim prop but I've got tons of other props to test once I start getting the boat dialed in. A couple runs later I stuffed it and it tore a bunch of paint off the cowl and cracked it. I knew I shoulda reinforced it! Got a new one on order.

    boat pix 013.jpg boat pix 039.jpg



    Last edited by v-spec; 08-04-2011, 10:21 PM.
  • tlandauer
    Fast Electric Addict!
    • Apr 2011
    • 5666

    #2
    That looks great!
    What made you decide on Tacon instead of Leopard? just curious. I see alot of motors from China looking very similar, always wondered if thet were just rebranded.
    Too many boats, not enough time...

    Comment

    • arp1500
      Senior Member
      • Jun 2011
      • 146

      #3
      looks awesome man

      Comment

      • v-spec
        Banned
        • Jun 2009
        • 940

        #4
        Originally posted by tlandauer
        That looks great!
        What made you decide on Tacon instead of Leopard? just curious. I see alot of motors from China looking very similar, always wondered if thet were just rebranded.
        $49 made me decide on the Tacon over the Leopard hehe! I also ordered a neu 1515 incase this one was no good. Seems to run nice and cool and fast though just like my Leopards.

        Comment

        • Brushless55
          Creator
          • Oct 2008
          • 9488

          #5
          Very cool man, looks great!
          .NAMBA20...Caterpillar UL-1, P-Spec OM29, P-Mono DF33, P-Spec JAE, Aussie 33" Hydro-LSH, Sprintcat CC2028 on 8s, PT SS45 Q Hydro, PS295 UL-1 power, OSE Brothers Outlaw QMono 4-sale, Rio 51z CC2028 on 8s

          Comment

          • d3lap
            Member
            • Aug 2011
            • 45

            #6
            Sweet man, i might steal this combo when i finish my custom boat.. what are your speeds like 45-50ish mayybe?
            Losi 8T-e 5s/1518/MMP/645mg
            Cat 30" build In progress...

            Comment

            • v-spec
              Banned
              • Jun 2009
              • 940

              #7
              Originally posted by d3lap
              Sweet man, i might steal this combo when i finish my custom boat.. what are your speeds like 45-50ish maybe?
              I'm not sure on speeds yet and honestly the boat is running really loose in the video and looks faster than it is, however I'm running a really conservative prop on it in the video and it should take much more. I expect speeds somewhere in the 50's when it's setup how I want it. It'll go faster if I loosen it up a bit. My pond is always really choppy so I need it to stay on the water. I can only hold full throttle for a few seconds here. I'll get it sorted out by the weekend I hope.

              Comment

              • v-spec
                Banned
                • Jun 2009
                • 940

                #8
                I got to run 4 packs on my boat today and I think I got the boat pretty dialed! I don't have a video but I'm going to try to get one tomorrow. It doesn't like the rough water from the first video at all but with the winds down some today and some cg strut and trim tab adjusting it's running great! Not too wet and not too loose either.

                So far I have to stick with the 42x55 prop as everything bigger was causing me all kinds of handling issues. I tried an x445 m445 m545 cut down x447/3 and an m447 all with mostly the same results. I'd like to try an x642 and a x440/3 but honestly it's running great with the 42x55.

                Not a single heat issue after a full 3 minute full throttle run. Esc caps 108 motor 111 and 4s pack 117. Also not a single drop of water in the boat anywhere nothing. I was a little disappointed with how is was running after the first pack today but it's running great now that it's setup decent and I couldn't be happier!

                Comment

                • Rumdog
                  Fast Electric Addict!
                  • Mar 2009
                  • 6453

                  #9
                  I bet if you add a little weight at the CG it will settle her down a bit.

                  Comment

                  • v-spec
                    Banned
                    • Jun 2009
                    • 940

                    #10
                    It's running great right now, I moved the cg forward another inch raised the strut and added 1 degree negative at the rear and it's running real nice, stable and smooth.

                    Comment

                    • dmwilson09
                      Member
                      • Apr 2011
                      • 86

                      #11
                      Just ordered mine yesterday (after I sold my p.o.s. spartan), so i should get it in a few days. What speed do you think you are running with the 42X55

                      Comment

                      • v-spec
                        Banned
                        • Jun 2009
                        • 940

                        #12
                        Originally posted by dmwilson09
                        Just ordered mine yesterday (after I sold my p.o.s. spartan), so i should get it in a few days. What speed do you think you are running with the 42X55
                        Awesome, this is a great boat! With my setup probably high 40's. I'm going to get a new video today where I can actually stay on the throttle since it's a little more dialed in.

                        Comment

                        • arp1500
                          Senior Member
                          • Jun 2011
                          • 146

                          #13
                          ok cool cant wait for the video

                          Comment

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

                            #14
                            Guys... just a word of advice... As ANY mono gets going faster, it climbs out of the water. The point at which it finally separates is the point where you start losing control. You HAVE to keep a portion of the hull in contact with the water if you want to hold speeds for any length of time. There is no IDEAL hull for all speeds... each hull has a speed-point at which it can't go any faster and still be in contact with the water. These aren't wide platforms with sponsons to stabilize them, they are narrow and have a razor's edge to run on.

                            As such, when you exceed the design speed of the hull, it's time to add some weight. Don't be shy... put it on the CG, down as low and as centered as you can, and go run...

                            On my Impulse 31, I added about 6oz of weight right in front of the motor in addition to the two 2S1P 5000 packs I had in there to run well in P-Limited Offshore. Drove and handled MUCH better than without, and it was faster, because I could actually stay in the throttle.

                            The boat was designed with this in mind, and you'll notice that there is room to actually get in under the battery trays. Make yourself some ballast from lead or ??? and play around with it. I think you'll be mildly shocked by the difference the weight will make.
                            Darin E. Jordan - Renton, WA
                            "Self-proclaimed skill-less leader in the hobby."

                            Comment

                            • v-spec
                              Banned
                              • Jun 2009
                              • 940

                              #15
                              I've got 4oz in mine right now, it was a little windy today with more chop so I stuck in some lead tire weights from my shop. I wasn't able to get my video today because my girlfriend wasn't able to get off work in time. I'll have some video soon though! The Impulse is running great though! I put 6 packs through it today without any problems whatsoever not even a drop of water in the hull.

                              securedownload.jpg

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