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This Corvette C6 turbo build proves boost and a Corvette chassis can genuinely coexist on both street and track. Twin-turbo LS builds on the C6 platform range from mild 700-800 horsepower street tunes to 1,300-plus horsepower record-holders, but the real work happens in the brakes, suspension, and weight reduction that keep a boosted C6 composed lap after lap. Here’s what separates a fast turbo Vette from a genuinely serious one.
The 1987 Buick Grand National made 245 horsepower and 355 lb-ft of torque from an intercooled, turbocharged 3.8-liter V6, with peak torque arriving at just 2,000 rpm. The intercooler that arrived for 1986 is the single component separating these cars from the largely forgettable 1984 and 1985 versions. Roughly 20,193 were built in the final model year, and the famous Lamborghini comparison actually belongs to the 547-car GNX. Read on for what to verify before buying one.