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Chevrolet Corvette (C4)

Chevrolet Corvette (C4)
1996 Chevrolet Corvette Coupe.jpg
1996 Chevrolet Corvette Coupe
Overview
Manufacturer Chevrolet (General Motors)
Production 1983–1996
Model years 1984–1996
Assembly United States: Bowling Green, Kentucky
Body and chassis
Class Sports car
Body style
Layout FMR layout
Platform Y-body
Related
Powertrain
Engine
  • 350 cu in (5.7 L) L83 V8
  • 350 cu in (5.7 L) L98 V8
  • 350 cu in (5.7 L) LT1 V8
  • 350 cu in (5.7 L) LT4 V8
  • 350 cu in (5.7 L) LT5 V8
Transmission
Dimensions
Wheelbase 96.2 in (2,440 mm)
Length 176.5 in (4,480 mm) (1984–1989)
Width 71.0 in (1,800 mm) (1984–1992)
Height
  • Coupe: 46.7 in (1,190 mm) (1984–1992)
  • Convertible: 46.4 in (1,180 mm) (1984–1992)
Curb weight 3,239 lb (1,469 kg)
Chronology
Predecessor Chevrolet Corvette (C3)
Successor Chevrolet Corvette (C5)

The Chevrolet Corvette (C4) was a sports car that was produced by Chevrolet for the 1984 through 1996 model years. The convertible returned, as did higher performing engines, exemplified by the 375 hp (280 kW) LT5 found in the ZR-1. In early March 1990, the ZR-1 would set a new record for the highest 24 hour-5,000 mile land-speed by going over 175 mph (282 km/h). Though prices rose even as sales declined, the fourth generation Corvette won its own loyal following as one of the United States' most desirable sports cars. The last C4 was produced on June 20, 1996.

The C4 Corvette was known for its evolved, sleek and modern look. In a departure from the fiberglass panels of its forebearers, the C4's rear bumpers and panels were made from molding plastics, a sheet molding compound. The C4 fastback coupe was the first general production Corvette to have a glass hatchback (the limited edition 1982 Collector Edition being the first Corvette equipped with this feature) for better storage access. The Corvette C4 came standard with an electronic dashboard with a digital liquid crystal display dash, with graphics for speed and RPM and digital displays for other important engine functions.

The C4 represented a clean break from the previous generation of Corvette with a completely new chassis and modern, sleeker styling. Since emissions regulations were still changing and electronic engine management was in its infancy, horsepower was, compared to earlier generations, low. Therefore, the primary design emphasis, at least for the launch, was on handling and braking, with all-independent suspension with light-weight suspension and wheels, and all new brakes with aluminum calipers. The front suspension saw the C3's coil springs replaced by a transverse fiberglass mono-leaf spring, which was only 1/3 of the weight of the coil springs while also introducing an anti-roll bar-like effect on the front. The price of this no-holds-barred emphasis on handling was ride comfort, especially with the Z51 performance and handling package. The C4 did not use separate body-on-frame construction like its predecessors. Instead, it used what GM termed a "uniframe", which consisted of a traditional perimeter frame, with the door posts, windshield frame, halo, and the rear portion of the floor pan integrated into one welded assembly. This was not a unibody assembly, as none of the exterior body panels were structural members. Due to a styling decision to use a targa top instead of T-tops, there was no structural member tying the windshield frame to the halo as on the C3. This required extremely tall side rails on the frame to maintain chassis rigidity, and as a result, the door sills were quite deep, with entry and exit likened by contemporary auto journals to a "fall in and climb out" experience. The targa top bolted into place, becoming a structural component, rather than simply latching on like T-tops. Despite the tall frame rails, the C4 was prone to rattles and squeaks, especially with the targa top removed. The emergency brake, located between the door sill and the drivers seat, was moved lower and toward the rear of the car in 1988 for easier entry and exit.


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Wikipedia

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