Chevrolet's fourth generation of Corvette debuted in January of 1983 as an '84 model, replacing the C3 'Vette, a.k.a. the Stingray, which had enjoyed an uninterrupted fifteen model year run.
With the introduction of the Tuned-Port Injection L98 350 Small Block V-8 in 1985, it brought performance back to the model line, after the dismal 200hp "Cross-Fire" dual throttle body injected 350 of the '82-'84 models. In '89 the clunky Doug Nash "4+3" transmission, needed because the Borg Warner T5 of the era wasn't up to the torque of the L98, was replaced with a proper ZF 6-speed manual.
Finally for the 1990 model year came the ultimate factory C4 Corvette option, the ZR-1.
GM had acquired Lotus in '86, and they proceeded to design a new 5.7L V-8 that shared nothing but its displacement and the spacing of its bore centers with the existing Chevy Small Block. An all-alloy DOHC 32V motor, it was largely built by Mercury Marine before final assembly and installation at the Corvette plant in Bowling Green, Kentucky. Known as the LT5, it was rated at 375 SAE net horsepower and 370 lb-ft of torque.
Car and Driver's test ZR-1 bolted to sixty in only 4.5 seconds, which was legit supercar territory in 1990 and still not too shabby today. It dispatched the quarter in 12.8 seconds at 111 miles per hour and topped out at a buck seventy-five. These wwer Ferrari and Lamborghini performance numbers, but with a GM warranty and a $51,500 price tag, roughly $124k in today's coin. Only 3,049 ZR-1s were produced that first model year, one of which is this Bright Red example.
They were subtle, too. The only external cues that this wasn't a regular 'Vette were those super meaty 17" rear skins (315/35-ZR17s mounted on 11"-wide rims) and a convex, rather than concave, rear end that had four squarish tail lamps rather than the traditional round 'Vette units. Of course, since most other cars would only be viewing it from the rear, maybe it wasn't that hard to spot...
(For 1991, all Corvettes got the convex rear, but the nose and fender vents mark this as a 1990 car, so it's a ZR-1.)
It was photographed in March of 2023 using a Canon EOS-1D Mark IV and an EF 70-200mm f/4L IS zoom lens.
Wow...34 years since the ZR-1 debuted. Sometimes this "time" thing really irks me.
ReplyDeleteRight? It came out a year after I’d stopped selling Chevies.
Delete