Quote:
Originally Posted by Flieger
Yes, if you can do it within class rules and not mess up something that is more important like cg height or aerodynamics. With serious race cars the suspension moves so little anyway...
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I find this argument silly. Chapman said that "tongue in cheek". Why? Because it obviously matters greatly to have proper suspension geometry even if the suspension does not move all that much. Otherwise, race teams in various series and formulas would not spend so much time and money on it.
Series with production-based cars clearly have more suspension movement than most formula series. Even so, I was watching the Formula 1 race in Canada and saw shot showing the rear suspension moving several inches.
Also, on production-based cars, adjusting the roll center usually is done because the car is lowered quite a bit altering the roll center so it well below ground. Getting the roll center back up to ground level or slightly above means the car will roll less for a given spring rate. Stiffer springs means less mechanical grip and mechanical grip is very important on production-based cars. Raising the roll center is not going to alter cg much and certainly is not going to mess with aerodynamics.
Let's not forget that suspension is a system and roll center is a part of that system. If it can be improved, it should be. Not doing so is leaving time on out on the track.
Scott