[QUOTE=John Stranahan]Tuning with chassis flex is a little puzzling to me. You never hear of a full size car designer wishing his chassis was more flexible, in fact every effort is made to make it stiff while still lightweight. When you make the chassis flexible it detunes the car. QUOTE]
Actually thats not true, I have been involved in building and racing full sized cars most of My life(a long time
) and controled chassis flex or twist is very important, and very often the difference between cars that drivers pick as a favorite car. Everything from drag cars, sprint cars, modifieds, late models, they all flex by design.......