Mechanically, the 1980 Corvette suffered some because of increasingly stringent emissions regulations. The base L48 engine, which had been rated at 195 horsepower in 1979, lost five bhp as a result of emissions tuning – taking it back to 190HP at 4,400rpm and 280lbs/ft. of torque at 2,400rpm. Worse was the impact that California emission standards had on the Corvette.
Uniconstruction: fiberglass reinforced plastic (FRP or “fiberglass”) body backboned by a steel cage outlining the the passenger compartment. Principal members – steel front and plastic rear – underbody, front and rear end assemblies, dash panel and hinge pillars are bonded, riveted, and bolted together and to each other. Hood is plastic with bonded plastic reinforcement. Car includes two removable roof panels. Doors are plastic, double paneled, reinforced with steel at hinge and lock locations. Front hinged.
All welded, full length, ladder constructed frame with five (5) cross-members. Side rails and intermediate cross-members box section; front crossmember box girder section. Eight (8) body mounting points.
Independent, SLA type, coil springs with center mounted shock absorbers, spherical joint steering knuckle pivots.
Wheel Travel (Design):
Wheel to spring, travel ratio:
Reinforced steel stamping with pre-loaded steel encased rubber bushings at pivot
Direct, double acting, hydraulic
– Piston Diameter:
– Bushing Material:
Front Wheel Alignment (Curb)
– Camber (degrees):
P0.709 +/- 1/2
– Caster (degrees):
P2.405 +/- 1/2
– Toe-in (total):
0 +/- 1.32
– Steering Axis Inclination (degrees):
7.683 @ 5° camber
Rear Axle & Rear Suspension
Fixed differential housing hypoid ring and pinion gear set, tubular articulating inner axle shafts and short solid outer shafts with integral drive flange, independently sprung rear wheels.
Full independent with frame-anchored differential. Position of each wheel established by 3 links; tubular axle drive shafts, transverse strut rods,and torque control arms. Vertical suspension loads taken by transverse leaf spring. Built-in camber adjustment at strut rod inner ends.