Forget the 1 notch, 2 notch method. The torsion bars have a different number of splines on each end so you can achieve infinite adjustment. You may have to go up 3 on the inside, down 2 on the outside, etc. to get what you need. If you are mechanic enough to change this, get a protractor and do it right. Cut the stops or spring plates to get the CV angle you want. Personally, we used to run the Type 2's at about 20-21 degrees limit without a lot of trouble IF the joints were in good shape to start with, not already clicking. Get the stops, etc, set where you want them for the CV's. Next there are two ways to do it. You have to pre-load the spring plates against the stop with no load on the buggy to get the right setting loaded. What I have traditionally found to work on a AC buggy with stock trailing arms is 12 degrees preload, will ride just off the stops. Position the spring plate on the stop and measure the angle. Next, slip the spring plate off the stop and work with the torsion bar to get the spring plates sitting at 12 degrees more than the reading on the stop.
An alternate method is to check the buggy sitting on the ground with the approximate load you are going to ride with. Check the spring plate angle, then put a jack under the back end and raise the buggy to where you want it to ride. Check the angle difference, then block it up, pull the spring plates just off the stops, measure the angle and add the previously attained difference to it.
If you are using longer arms, you will have to add more preload as this gives the wheel more leverage on the torsion bar. Also remember, if you ride sometimes alone, with two or with four, no setting is going to be ideal for every situation. In this case, an adjustable setup will be better. For a four seater, the Type 3 bars or an aftermarket bar is definitely a good idea.
Bottom line, if you stay with torsion bars, get a protractor and at least know what you have and not be guessing one or two notch, inside or outside notch, etc. This way you know where you started, what you changed, what effect it had and about how much more change to make.
No intention to be an A hole or tell you what to do, just been down this road many times. Let your bank account and conscience fight it out over torsion vs. adjustable set up.
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