I've made several updates to my 2020 Transit over the holidays. I modified part of my racking to allow for the use of the Sys3 Rail System and a major upgrade to the electrical system.
Racking
Like many, I have all three generations of Systainers. I now have enough to the Sys3 versions to make it worth updating my van shelving. I chose to update the two bays closest to my parts bins to permit the installation of the Sy3 rails. I had to increase the with of each of the two bays 9mm (18mm total) to allow for the width of the rails. Finding that 18mm was easy but executing it made it necessary to remove the entire drivers side shelving system. The result was very much worth it! The removal of the racking also allowed me to add shore power to my electrical system and run the wiring in the body cavity rather than leaving it exposed along the interior of the roof line.
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I also added a long overdue storage platform for the space over my table saw. I've been trying to put stuff on top of the saw since I first started storing the saw in the side door opening. I used a bit of RV J-Channel and some plywood to make a removeable platform. At one point I thought I'd make a box for the saw with a bin for my tool bag on top. I think this is a much more elegant, and flexible, solution! I'm still playing around how to best secure the bag, for now it's just clipped to the grab handle.
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Electrical
The upgrade to my house electric system was not so much functional as it is performance oriented. There are two major areas of improvement.
The first is I added shore power. This was primarily to add on a hardwired 110v battery charger for the house battery. The removal of the drivers side racking gave me easy access to add the shore power port and run the wiring inside the wall rather than surface mount the wiring along the interior roof line.
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The second area of improvement improved the performance and safety of the overall house power system. I added a fused bus bar to separate the feeds to the inverter and general 12v circuits. The bus bar also provided a way to easily connect the onboard 110v battery charger. I also added a 12v DC to DC battery charger to more effectively charge the house battery when the engine is running. In my first installation I used an isolator to provide charging to the house battery. The issue with an isolator is that it feeds the house battery with whatever power it can. The DC to DC Charger is a 3 stage charger that also isolates the house battery from the vehicle battery to prevent discharge of the vehicle battery.
I moved the power management and charging portion of the system to the area behind the drivers seat. This has the advantage of keeping the equipment safe and provides me with easy access to 110v power in the cab.
The electric improvements would not have been possible without the superb videos from Nate at
Explorist Live - DIY Campers
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So, two years in to my Transit I can say that I am very happy with both the vehicle itself and the fit out. I have a few more minor improvements in mind. I'll likely add a few more drawers and some task lighting in the near future.