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Hi, question about roll centres with swing arm suspensions as used in formula vee. Obviously the camber changes substantially with heave of the rear, and most vees run a "zero roll resistance" setup without rear arbs and with camber limiting devices which essentially stop the rear wheels drooping to negative camber. My question is with such a high roll centre being the limiting factor, does this negate the need for a rear arb, or is there still a benefit in running an arb
I may be missing something in your query, but my thoughts.
You may want to review the rear suspension characteristics, especially the dreaded "tuck under", and why a rear ARB is generally not a good idea as it ties the rear sides together to encourage droop.
What is usually used to provide/enhance the lower rear roll resistance is a "Z-bar", which works in the opposite way to a conventional ARB. So, rather than further complicate the rear suspension with an additional ARB, with it's linkages, I'd suggest looking at introducing adjustment into a "Z-bar" instead, if it isn't already present.
If this is a VW based racecar, or special, you may also wish to consider the front suspension options, too.
