In 1979, GM started playing around with introducing forced induction to the Corvette in light of the car's decreasing performance due to CAFE regulations of the time. The result was a few different prototypes developed for testing. They featured a L82, 350 ci engine, AiResearch turbo charger and a modified Cadillac fuel injection system. Below are some details and photos that we've been able to collect:
Production Corvette RPO L-82 350 in3 (5.7 L) with LM-1 camshaft. Standard internal engine components.
AiResearch model T-3 with integral exhaust waste gate which regulates intake manifold pressure to 7 PSI. Turbocharger mounted directly to right hand modified cast iron manifold.
Modified G.M. throttle body injection (T.B.I.) with closed loop electronic air/fuel control. Fuel injected into dual-plane intake manifold. Air throttle valve located at turbocharger compressor inlet.
Standard 1979 dual exhaust with single resonator replacing converter.
Standard 3-speed automatic transmission.
Production 3.55:1 rear axle with limited slip differential.
P255/60 R 16 Goodyear Eagle GT tires mounted on 15" x 8 1/2" aluminum wheels.
Special "Firefrost Silver" paint with external graphics and internal decor by Chevrolet Design Staff. RPO D 75 front air deflector and D 80 rear deck lid spoiler.
Front 1720 pounds
Rear 1775 pounds
|Performance Comparison|| Turbocharged L48 (automatic,
3:55 rear axle)
| Stock 1978 L48 (automatic,
3:08 rear axle)
| Stock 1979 L82
3:70 rear axle)
|Zero to 30 mph||2.2||2.9||2.5|
|Standing 1/4-mile||15.0 sec @ 94 mph||16.1 sec @ 88 mph||15.3 sec @ 95 mph|
|Top Speed, mph||111||123||127|