2014 Corvette Stingray boasts fuel economy?
Source: By Jack Kazmierski, Toronto Sun
The Stingray offers an irresistible combination of power and fuel economy.
The 2014 Corvette Stingray boasts a 6.2L V-8 powerplant certified at 460 hp and 465 lb-ft of torque (when equipped with the optional performance exhaust) or 455 hp and 460 lb-ft, with the standard exhaust system.
GM says they’ve managed to boost power and maximize fuel economy with the use of advanced technologies. The company estimates the Corvette will sprint from 0 to 60 mph in less than four seconds, while still offering an overall fuel economy as low as 9 L/100 km.
How did they do it?
GM says it’s a combination of direct injection, active fuel management, continuously variable valve timing, and an advanced combustion system.
Direct injection is the biggest player in this power/fuel economy formula, GM notes, because it ensures a more complete burn of the fuel in the air-fuel mixture. This is achieved by precisely controlling the mixture motion and fuel injection spray pattern.
Direct injection also offers another key benefit – it keeps the combustion chamber cooler, which allows for a higher compression ratio.
Another major player in this formula is the Active Fuel Management system. When peak power is not needed, the system deactivates half of the engine’s cylinders, thereby saving fuel.
Then there’s the all-new combustion system. GM says it 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.”
Finally, there’s all the support mechanisms – an advanced oiling system with oil-spray piston cooling; an engine-mounted, camshaft-driven fuel pump; and advanced intake and exhaust manifolds.
All these pieces fit together nicely, promising Stingray drivers a combination of power, performance and fuel economy.