13-02-2018, 08:16 PM
Roll oversteer is primarily related to a geometric steer effect of the suspension. Almost all systems (except the trailing parallel links of a Mini) steer one way or the other to some extent so to remedy by altering spring geometry is entirely normal.
Oversteer is otherwise related more to the tyre performance, in turn related to the weight loading and any camber change. The relative stiffness of front and rear springs in roll, chassis rigidity, roll centre height, major influences on the weight on tyre.
All oversteer, and roll oversteer particularly, is like walking a tightrope, an inherently unstable condition where every wobble grows. The Seven has both strong roll and weight related oversteer. Hence the characteristic lively handling of full height cars,
unnerving to those only accustommed inherently stable moderns.
If for some curious reason (hot rod maybe) someone wanted to cure the roll oversteer of the saloons any axle locating framework would hopelessly conflict with the conventional shackles.
(Decades ago I started to make a spring mounting below the chassis of my RP but fortunately never completed. Sadly another RP chassis was sacrificed in the process)
Stiff springs and shock absorbers, by reducing all movement, reduce the effect of geometric influences and errors.
Oversteer is otherwise related more to the tyre performance, in turn related to the weight loading and any camber change. The relative stiffness of front and rear springs in roll, chassis rigidity, roll centre height, major influences on the weight on tyre.
All oversteer, and roll oversteer particularly, is like walking a tightrope, an inherently unstable condition where every wobble grows. The Seven has both strong roll and weight related oversteer. Hence the characteristic lively handling of full height cars,
unnerving to those only accustommed inherently stable moderns.
If for some curious reason (hot rod maybe) someone wanted to cure the roll oversteer of the saloons any axle locating framework would hopelessly conflict with the conventional shackles.
(Decades ago I started to make a spring mounting below the chassis of my RP but fortunately never completed. Sadly another RP chassis was sacrificed in the process)
Stiff springs and shock absorbers, by reducing all movement, reduce the effect of geometric influences and errors.