“The Holy Grail for developing a performance car is delivering greater performance and more power, with greater fuel economy, and that’s what we’ve achieved,” said Tadge Juechter, Corvette Chief Engineer. “By leveraging technology, we are able to get more out of every drop of gasoline, and because of that, we expect the new Corvette will be the most fuel-efficient 450 horsepower car on the market.”
“Our objective for the development of the all-new LT1 was to raise the bar for performance car engines,” said Mary Barra, Senior Vice President, Global Product Development. “We feel that we have achieved that by delivering a true technological masterpiece that seamlessly integrates a suite of advanced technologies that can only be found on a handful of engines in the world.
“What makes this engine truly special is the advanced combustion system that extracts the full potential of these technologies. The art and science behind that combustion system make the Corvette LT1 one of the most advanced V-8 engines in the world,” said Barra.
This "advanced combustion system" includes the following critical components:
- Direct injection, a first time for an overhead-valve engine. DI keeps the combustion chamber cooler, allowing for a higher compression ratio. Emissions are also reduced.
- Active Fuel Management, GM's well-received and highly competent system for deactivating four of the eight cylinders when the load is light. The 6.2L will function as though it were a 3.1L engine during this phase.
- Continuously variable valve timing, pioneered by GM for overhead-valve engines.
- Modifications to the engine at every turn for a cleaner burn, including a new cylinder-head design, a sculpted piston design, and the placement of the electrode closer to the center of combustion to make it optimal.
10 million hours of computational analysis were conducted on this engine program!
The result of all this genius? Final figures will not be announced until early 2013, but horsepower will be about 450 (20 more than on the current model, and the most ever on the standard Corvette). Torque will be about 450 lb-ft. Because of the lighter weight of the 2014 Corvette, 0-60 times are projected to be slightly under 4 seconds (the quickest ever for a so-called base Corvette!). And, fuel economy will be better than the 2013 Corvette, exceeding 26 mpg!