For street use we advocate the necessity to stay soft on spring rates and to use bars and shock absorbers for stiffening suspension.
Spring rates determine the available amount of bump and rebound movemnet. Higher spring rates
limit this movement in much the same way as a stabilizer bar. For street conditions, the ideal spring
rates would be where the suspension movement ceases just before the bump rubbers come into
action. Astute “car sorters” use stabilizer bars and spring rates in conjunction with one another to
achieve the best results. Altering spring rates may also require re-specification of the bump-rebound
qualities of shock absorbers. For example, where stronger springs are required, a shock absorber
with stronger rebound and softer bump should be selected.
. With “roll oversteer” the car leans heavily, hitting the bump rubbers and causing a skipping action of the rear end,
often resulting in an inversion of the car. “Rigid oversteer” is brought about by a tight suspension set-up which does
transfer sufficient weight to the wheel doing all the work.
suspension. The hard suspension will have a tendency to “jump” on unsmooth surfaces, thus lessening contact
between tires and the road. With soft suspension the tendecy to accentuate centrifugal forces by excessive body roll
causes the type of understeer that most of us have experienced at one time or another.
