Ya, they need to 'see' each other to do that, so the single fill point system that comes with the shocks would be the simplest install. Keep in mind that you may need to run in excess of 140psi to carry any load more than two 200lb riders. As you could see in the pictures, the articulation is amazing, and so is the improvement in ride. It also made a big difference in keeping the rear wheels on the ground too. Something new I've discovered, is that it's really difficult to get the shocks equally pressurized when using a single fill point for individual shocks using the air hose. The air volume of the shock is so small that just 'bumping' the trigger on my fill/pressure tool will make a 10-12psi change instantly, and just lifting the chuck off the fill valve can change pressure 2-5psi, and that's on mine with double shocks on each corner. I think- even if doing singles, you should add a pressure gauge into the system so you can over pressurize, and then 'tweak' it down to the desired pressure with the fill valve while watching the system gauge. Don't let me scare you off, this all sounds difficult but it really isn't. I'm just trying to share as much as I can as I gain insight and experience with this mod. When I finally get the whole system completed, and head out on the first real hard-core run (like the H.M. trails) I'm going to take all four of the stock shocks with me. So far, this suspension mod has attained, or exceeded, every goal I had in mind when I started. It is just soooo cool to drive over obstacles now and have all four wheels firmly planted on the ground!
I guess I should elaborate, I plan on a pair on each corner up front. So,my air volume will be more than a single shock on each corner up front, do you think the pairs would contain enough volume to allow articulation without going across the buggy and allowing the left and right "Pairs" see each other. Not a huge deal, I am just wanting to eliminate as many points of failure as possible. If I need to connect left and right sides together, I am wondering if a small bladder or air tank would increase volume and fit under the hood. Not my desire, but if I have to connect in the center anyways...
Amazon.com: Viair 91005 0.5 Gallon Tank: Automotive
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