|The 2014 Corvette Stingray’s all-new LT1 6.2L V-8 engine is SAE-certified at 460 horsepower at 6,000 rpm and 630 Nm at 4,600 rpm, with the available performance exhaust system.|
On standard exhaust, the Corvette Stingray holds 455 horsepower and 624 Nm of torque. These figures are the highest standard power ratings ever for the Corvette, delivered with efficiency that is expected to exceed 9.05-liter per 100km or 26 mpg on the highway.
At 74 hp per liter, the LT1 has greater power density than the C6 Corvette’s LS3 6.2L engine and even the C6 Z06’s racing-derived 7.0L LS7. The lightweight Corvette Stingray offers excellent acceleration at all speeds and is estimated to sprint from 0 – 100km/h in just 4 seconds.
The new LT1 engine’s high output, and high power density and efficiency are due to several advanced technologies, including direct injection, Active Fuel Management and continuously variable valve timing, which support an advanced combustion system.
Direct injection is a primary contributor to the engine’s combustion efficiency, ensuring a more complete burn of the fuel in the air-fuel mixture. That’s achieved by precisely controlling the mixture motion and fuel injection spray pattern. Direct injection also keeps the combustion chamber cooler, which allows for a higher compression ratio. Emissions are also reduced, particularly cold-start hydrocarbon emissions, which are cut by about 25 percent.
Active Fuel Management, or cylinder deactivation, is a first-ever application on the Corvette. It helps save fuel by imperceptibly shutting down half of the engine’s cylinders in light-load driving. Continuously variable valve timing is refined to support the LT1 AFM and direct injection systems to further optimize performance, efficiency and emissions.
These technologies support the all-new, advanced combustion system, which incorporates a new cylinder-head design and a new, sculpted piston design that is an integral contributor to the high-compression, mixture motion parameters enabled by direct injection.
In addition, the Corvette Stingray’s powerplant features: Advanced oiling system with oil-spray piston cooling and available dry-sump oiling; Engine-mounted, camshaft-driven fuel pump; Intake manifold with “runners in a box” design; and High-flow, four-into-one exhaust manifolds.
Corvette Stingray Convertible images
Edited: GM – Chevrolet