For an idea of what type of thrills this powertrain can provide, check out our test of the 1989 Callaway twin-turbo C4 Corvette. Although there are some differences, it at least gets you in the ...

Callaway's 382 horsepower Twin-Turbo Corvette set the stage for the ... That got you a twin-turbocharged, 382 horsepower C4 Corvette tuned by the boostheads at Callaway. A specially-tuned version ...

Tuned Port Injection may seem primitive by contemporary standards, butin its day, "TPI" represented an important step forward in the evolutionof Corvette ... a bolt-on turbo systemfor '85-'91 ...

For the C4 Corvette's swan song in 1996 ... LX 5.0 (Project Excalibur), 1989 Ford Mustang LX 5.0, 1987 Buick Regal Turbo-T (2 of them), 1993 Pontiac Firebird Formula (Project Thunderchicken ...

C4 Corvette interiors do not usually wear very ... The center vent nearest the driver has been replaced with the Callaway turbo boost gauge as part of the conversion. This example is well equipped ...

It was the Callaway Corvette that arrived before the C4 ZR-1 did. Chevrolet knew it needed ... Matt Farah drives a lightly modified 1988 twin-turbo Callaway Corvette featuring an improved camshaft ...

The L98 served as the C4 Corvette’s standard engine from 1985 ... Starting in 1987, the L98 was the foundation of the RPO B2K Callaway Twin Turbo option. And in 1988, the L98 supplied the ...

Chief Corvette engineer Dave McLellan looked ... That's how the Sledgehammer set the record. The C4 Callaway twin-turbo was also a good value proposition of money to performance than his European ...

With the recent announcement of the 2025 twin-turbo LT7 ZR1 the nameplate seems ... the ZR1 package vanished until 1990 and the C4 Corvette. Now with a hyphen, the ZR-1 was the king of the hill ...

And while Chevrolet has started to share details about the upcoming C8 ZR1 and its 1064-horsepower twin-turbo ... during the Corvette’s fourth-generation. Making the most of the C4 platform ...

The custom build was inspired by the Quadra Javelina and Quadra Turbo R vehicles from the world ... Despite coming from the ’80s, the stock blue-faced Corvette C4 instrument panel looks quite ...