1985 — Electronic “Tuned-Port Injection”
5.7 liters (350 cu. in.)
230 hp @ 4000 rpm, 330 lb-ft @ 3200 rpm
For 1985, the Chevrolet Corvette gained a new engine dubbed L98 that boosted acceleration considerably. It used a new fueling setup called Tuned-Port Injection, which could be considered the Corvette’s first truly modern electronic fuel injection system. Whereas older electronic fuel-injection systems simply squirted fuel into the intake manifold after the throttle body, TPI had eight fuel injectors positioned directly in front of each of the engine’s intake valves. This led to another improvement in fuel metering accuracy, making the L98 more powerful and more fuel efficient than its predecessor, Chevrolet’s throttle-body injector system. By 1986, a switch to aluminum heads bumped power to 235 hp, and in 1987 Chevrolet installed roller rockers to bring power to 240 hp.