2021 G23 G25 Supplemental Ballast

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts
  • Cpan13
    • Jan 2016
    • 339

    • Canada

    • Current - 2021 G23 … Previous - 2020 Supra SL450, 2015 G23, 2014 G21, 2012 Epic 21V

    2021 G23 G25 Supplemental Ballast

    Tools needed
    -Drill (I prefer impact)
    -Phillips bit
    -Holesaw kit
    -5/16 nut driver
    -Teflon tape
    -Good flash light
    -Parts/tools bin
    -Heat gun
    -Small vacuum

    Parts needed
    -2x Wakemakers full ballast kit Item #: S16744
    -2x Wakemakers Center locker bags 70"L x 20"W x 10"H - 570lbs Item #: B0199
    -2x 1” barb by 3/4” FIP Tee
    -2x 3/4” barb by 3/4” MIP 90
    -Hose clamps
    -2” machine screws and nylock nuts

    Start with the through hulls. These go 21” forward of the prop shaft exit and 8” left/right of center. Use a 1-1/16” hole saw to drill. Then use the marine grade 5200 sealant (provided with wakemakers kit) on the brass fitting and tighten. This is a 2 man job. I used a deep socket and about a foot
    of extensions to tighten the locking nut and valve onto the brass fitting. I find it’s a pain to get the hose and hose clamp onto the barbed fitting so deep in the boat so I install the barbed fitting and hose clamp into a longer length of hose first and the turn the whole thing in at one time. Then just cut off your excess hose before hooking it up to the
    pump.

    To mount the pumps I built this bracket. I copied the 2022 that I saw in my dealers show room that they were nice enough to let me snoop through. I’m guessing you could just order this bracket from Nautique but it was faster for me to just build my own.

    To plumb the bags simply open the port and starboard floor hatches. I drilled the vent line through the floor right next to the current vent and T’d into it with the barbed fittings above the check valve. The factory 1” vent line is steel reinforced hose. This is where the side cutters are used. It won’t be very often I fill factory and supplemental at the exact same time, if it gives me and issues I’ll drill a dedicated vent. For the fill line I drilled through the “V” in the fibreglass near the front of the factory bags. This was the best place I could find that didn’t require drilling through 2 layers of fiberglass to get engine bay access. I used a 2-1/2” hole saw so the line has the most flex/wiggle room possible.

    Vacuum up all your fibreglass dust and look for any fiberglass/gel coat chips that fell into the ballast compartment. They can be pretty sharp and will puncture a bag if you miss one.

    Hook up the through hulls and fill lines to the pumps. Make sure your fill lines are away from the V drive. The wakemakers hoses are pretty tight so I just used a heat gun and a bit of white lithium spray to help them onto all the fittings.

    I didn’t get any pictures of the switches but I mounted them in the glove box. It was an easy wiring route and I don’t mind having to lean over to hit 2 switches. There’s a battery right next to the new pumps and the wakemakers connections make it ridiculously easy.

    I’d say this is a medium difficulty project, I’m fortunate that I have a shop full of tools and some know how, if you don’t then please have your dealer do this. You’ll be drilling 6 sizeable holes through your boat so don’t blame me if you mess it up. But at least all you 2021 owners know you don’t have to upgrade to get easy supplemental ballast.
    Last edited by Cpan13; 12-07-2021, 09:40 AM.
  • Cpan13
    • Jan 2016
    • 339

    • Canada

    • Current - 2021 G23 … Previous - 2020 Supra SL450, 2015 G23, 2014 G21, 2012 Epic 21V

    #2
    Through hulls.
    Attached Files

    Comment

    • Cpan13
      • Jan 2016
      • 339

      • Canada

      • Current - 2021 G23 … Previous - 2020 Supra SL450, 2015 G23, 2014 G21, 2012 Epic 21V

      #3
      Pump bracket and mounting location.
      Attached Files

      Comment

      • Cpan13
        • Jan 2016
        • 339

        • Canada

        • Current - 2021 G23 … Previous - 2020 Supra SL450, 2015 G23, 2014 G21, 2012 Epic 21V

        #4
        Ballast access and fill line hole.
        Attached Files

        Comment

        • Cpan13
          • Jan 2016
          • 339

          • Canada

          • Current - 2021 G23 … Previous - 2020 Supra SL450, 2015 G23, 2014 G21, 2012 Epic 21V

          #5
          Vent fittings and routing.
          Attached Files

          Comment

          • shag
            1,000 Post Club Member
            • Jul 2003
            • 2217

            • Florida


            #6
            Beautiful boat a great wright up! Still blows my mind that these 200K plus boats still need to add in ballast to help the wave/wake..

            Comment

            • scottb7
              1,000 Post Club Member
              • Aug 2011
              • 2198

              • Carson City, Nevada

              • 2014 G21 (Current) 2008 SANTE 210

              #7
              Looks like a great job. Looking at the last picture I have a question. When the primary overflow will it flow down into the secondary? Do you need another backflow preventor?
              Last edited by scottb7; 12-07-2021, 07:55 PM.

              Comment

              • Cpan13
                • Jan 2016
                • 339

                • Canada

                • Current - 2021 G23 … Previous - 2020 Supra SL450, 2015 G23, 2014 G21, 2012 Epic 21V

                #8
                Originally posted by scottb7 View Post
                Looks like a great job. Looking at the last picture I have a question. When the primary overflow will it flow down into the secondary? Do you need another backflow preventor?
                Good catch. The wakemakers kit comes with vent line check valves pre installed in their vent lines. They just don’t show up in any pictures. Otherwise yes you’d be correct.

                Comment

                • Cpan13
                  • Jan 2016
                  • 339

                  • Canada

                  • Current - 2021 G23 … Previous - 2020 Supra SL450, 2015 G23, 2014 G21, 2012 Epic 21V

                  #9
                  I did a test fill tonight and everything worked as it should. Here’s the switches I installed and a picture of the wakemakers in-line check valve. I think I’m going to add a nice aluminum backing plate for the switches at some point. Now I just need to give this thing a good vacuum and it can hang out till the snow melts.
                  Attached Files

                  Comment

                  • Jepnbyu
                    • Mar 2019
                    • 4

                    • Dunlap IL


                    #10
                    Great write up. Were there any piggy back systems you considered?

                    Comment

                    • Cpan13
                      • Jan 2016
                      • 339

                      • Canada

                      • Current - 2021 G23 … Previous - 2020 Supra SL450, 2015 G23, 2014 G21, 2012 Epic 21V

                      #11
                      Originally posted by Jepnbyu View Post
                      Great write up. Were there any piggy back systems you considered?
                      You could really easily piggy back the stock system, or even just get bigger bags made. But the G series already has pretty long fill and drain times so I wanted a second standalone system.

                      Comment

                      • MN Ryan
                        1,000 Post Club Member
                        • Aug 2020
                        • 1246

                        • Maple Grove, MN

                        • 2007 SV-211 TE

                        #12
                        Very nice!

                        Sent from my SM-G970U using Tapatalk

                        Comment

                        • Cpan13
                          • Jan 2016
                          • 339

                          • Canada

                          • Current - 2021 G23 … Previous - 2020 Supra SL450, 2015 G23, 2014 G21, 2012 Epic 21V

                          #13
                          Just wanted to post an update. I finally tested this system on the water and it worked flawlessly. I also added a switch backing plate to clean things up a bit. I believe this is absolutely the best way to get supplemental ballast in a 2021. Having additional pumps and switches gives me a much more customizable and faster filling system rather than adding the bigger bags and cycling the stock pumps multiple times.
                          Attached Files

                          Comment

                          Working...
                          X