Adding a capacitor to the Turnigy Aquastar 120 A speedy

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  • jimi911
    Senior Member
    • Jan 2010
    • 205

    #16
    There are several options for cap size and setup

    Some go with one large cap with a high voltage
    Advantage - Takes up less space, cheap, easy to solder, and you can use some seriously hi voltage caps if you want.
    Disadvantage - There's only one cap to blow and, in theory less warning.

    Some go with multiple caps
    Advantage - Easier to keep on eye out for swelling ... normally one goes first (swelling, discoloration, odd heat characteristics ... burns when u pee ... wait thats something else).
    Disadvantage - Pain to solder, more expensive if you start buying pre-made 'bays'.

    When choosing a cap size I normally just look at the esc I am using and match it up. For example, my 110HV is running 60v caps, so I added bay with 4 more. Not a bad rule is to look at your voltage and double it (ex. I run 30v caps on my 4s setups). Or you can just solder a huge 400v cap on there and go nuts ... I've seen that to! As long as you have a cap that matches the voltage demands you should be ok.
    www.whittingtonracing.ca

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    • sanyijr
      Senior Member
      • Oct 2008
      • 376

      #17
      That makes pretty good sense. (Except the burning part).....

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      • properchopper
        • Apr 2007
        • 6968

        #18
        OK, I'll bite ; as long as we're discussing cap values, what uF (micro-fedorka?) value should be considered ?
        2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
        2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
        '11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /Mono

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        • jimi911
          Senior Member
          • Jan 2010
          • 205

          #19
          Originally posted by properchopper
          OK, I'll bite ; as long as we're discussing cap values, what uF (micro-fedorka?) value should be considered ?
          Lol ... that's when my info ends :)
          www.whittingtonracing.ca

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          • siberianhusky
            Fast Electric Addict!
            • Dec 2009
            • 2187

            #20
            Value isn't as important as voltage, as you add more caps in par. the values add up.
            A mix of small and larger would actually work the best, smaller caps can absorb higher frequency ripple easier than a larger cap.
            Cap quality is another important factor, cheap ones can't stand the heat like a good one can.
            Cheap caps are the curse/blessing of vintage tube amp repair! My most common repair job, PS caps!
            If my boats upside down then who owns the one I thought I was driving the last two laps?

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            • SirBudman32
              Senior Member
              • Aug 2011
              • 625

              #21
              Ok here is a quick question. I have a SV -27 with stock esc in it and just got some Rubycon (35 vdc. 1000 uf ) caps, now should I add one or two? Thanks
              Modified Jae21, Stock Jae21, Cheetah, Ul-1, Shock Wave 26 V2 (Rescue Boat).

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              • VTOL
                Member
                • Jul 2011
                • 67

                #22
                Simple Explanation:


                Coffee break is over everyone back on thier heads.
                4 time IMOM Winner!

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                • siberianhusky
                  Fast Electric Addict!
                  • Dec 2009
                  • 2187

                  #23
                  Stock one is 470 I believe, adding another 1000 to that would be ample, giving about 1500mF.
                  Thats the old version esc, not sure of the value on the newer one but another 1000 would be good considering the capabilities of the esc. As long as your batteries can deliver the current.
                  If my boats upside down then who owns the one I thought I was driving the last two laps?

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                  • properchopper
                    • Apr 2007
                    • 6968

                    #24
                    Tested with Cap installed

                    Ran the JS with the additional cap. SC was WAAY cooler. Know that this is not a totally controlled scientific experiment, but it works for me
                    2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
                    2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
                    '11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /Mono

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                    • sanyijr
                      Senior Member
                      • Oct 2008
                      • 376

                      #25
                      Originally posted by properchopper
                      Ran the JS with the additional cap. SC was WAAY cooler. Know that this is not a totally controlled scientific experiment, but it works for me
                      Tony, as in when my wife says : "I bought this outfit "WAY" on sale."? Or do you mean Much cooler.

                      I will have to give that a try......

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                      • Make-a-Wake
                        FE Rules!
                        • Nov 2009
                        • 5557

                        #26
                        I've added caps to my T120's when running 2000+ kv motors...............works well!
                        Attached Files
                        NEED PARALLEL CONNECTORS?? QUALITY 5.5MM, 8MM, 8 AND 10 AWG, GET THEM HERE: http://forums.offshoreelectrics.com/...est!&highlight=

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                        • properchopper
                          • Apr 2007
                          • 6968

                          #27
                          Just bumped into this. Still doesn't give actual values for uF (micro fedorkas) but sheds some more light

                          2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
                          2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
                          '11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /Mono

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                          • detox
                            Fast Electric Addict!
                            • Jun 2008
                            • 2318

                            #28
                            Novak also makes one called the Glitch Buster. Plugs into radio receiver to prevent radio glitching caused from high amp setups.
                            Tower Hobbies carries an expansive collection of RC cars, RC airplanes, RC boats, model trains, sot cars, and supplies for all hobbyists.

                            Tower Hobbies carries an expansive collection of RC cars, RC airplanes, RC boats, model trains, sot cars, and supplies for all hobbyists.

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                            • properchopper
                              • Apr 2007
                              • 6968

                              #29
                              Originally posted by detox
                              Novak also makes one called the Glitch Buster. Plugs into radio receiver to prevent radio glitching caused from high amp setups.
                              Tower Hobbies carries an expansive collection of RC cars, RC airplanes, RC boats, model trains, sot cars, and supplies for all hobbyists.

                              http://www3.towerhobbies.com/cgi-bin...?&I=LXYAN4&P=7
                              Makes sense. Easiy enough to make also.
                              2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
                              2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
                              '11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /Mono

                              Comment

                              • madmorgan
                                Banned
                                • Jun 2011
                                • 152

                                #30
                                ok so heres a quickie im thinking you can but someone knows more than me
                                1 we know we can run 2 batts either parallel or in series
                                2 if we run them parellel 2 batts with 5000 mah at say 6s are now 10000 mah but stay at 6s or 22.2 v ,yes or no ?
                                so if # 2 is yes then if i have say 2 caps 25v and 500 uf each the 25v will not double it will stay 25v or does it double raising to 50v and does the uf stay at 500 or does that double to 1000 uf? and if it does double then could you use this new cap bank for a 12s or 44.4v setup ? or would they both blow up quickly lol ?

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