Group ND Proposal
These items are free save that no in cabin adjustment can be possible:
- Springs
- Torsion bars
- Sway or roll bars
- Shock absorbers (dampers), save that their connection points to the body work may not be moved
- Wishbone and linkage rods, arms and their pivoting end “bushes”
Wishbone and/or control arm connection points on body structure or any bolt-in subframe, may be moved by up to 30mm.
Each fully sprung part of the Automobile, except for the exhaust system, must be at least 100mm above the ground when measured at a point within the wheelbases. The Automobile ride height shall be measured with the driver, and all normal necessary equipment fitted.
Justification and Rationale
Permits simple and cheap adoption of off-the shelf components now commonly found on both road going and race cars of the PERIOD.
Enclosed spherical joints were becoming common place in suspension components on a wide variety of cars (eg Triumph Dolomite, Toyota Corolla) , so forcing the use of elastomeric bushes is unnecessary and could result in a perceived performance difference between MODELS.
The freedom to move pivot point locations allows for commonly seen “race” modification on lots of MODELS.