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2014 Corvette Stingray Certified at 460 HP, 465 Lb-Ft

That's with the performance exhaust, but c'mon, who wouldn't buy the performance exhaust?

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  • 2014 Chevrolet Corvette Stingray
  • 2014 Chevrolet Corvette Stingray
  • 2014 Chevrolet Corvette Stingray
  • The Corvette Stingray's LT1 6.2L V8
  • 2014 "LT-1" 6.2L V-8 VVT DI (LT1)
  • 2014 "LT-1" 6.2L V-8 VVT DI (LT1) for Chevrolet Corvette
  • 2014 Chevrolet Corvette Stingray convertible
  • 2014 Chevrolet Corvette Stingray convertible
  • 2014 Chevrolet Corvette Stingray convertible
  • 2014 Chevrolet Corvette Stingray convertible
  • 2014 Chevrolet Corvette Stingray convertible
  • 2014 Chevrolet Corvette Stingray convertible

We like horsepower. We like torque. We like trying to find every single one of them in the cars we drive. But we also like being able to go as far as possible on a gallon of gas when we’re not hooning the tires off. So yeah, we’re pleased that Chevy’s new LT1 small-block V8 in the 2014 Corvette Stingray makes more power and delivers better fuel economy than the engine it replaces.

The new Corvette motor has been SAE-certified at 460 horsepower and 465 lb-ft of torque when equipped with the sport exhaust system—24 horsepower and 37 horsepower than the sport exhaust-equipped 2013 Corvette’s LS3 motor. Sans performance exhaust, the Stingray’s LT1 makes 455 horses and 460 lb-ft—25 ponies and 32 torques more than the LS3. Chevrolet says the new engine should vault the 2014 Corvette Stingray through the 0-60 sprint in “less than four seconds;” we bet it’ll run a three-eight, easily.

That power figure, Chevy is happy to point out, works out to more power per liter than even the Corvette Z06’s LS7 V8, while the sport exhaust-equipped model’s peak torque comes up only five lb-ft shy of the Z06 motor. With 316 lb-ft available at 1,000 rpm and 90 percent or more of peak torque on tap between 3,000 and 5,500 rpm, the Corvette Stingray looks like it’ll maintain the low-end and mid-range grunt that’s always made the ‘Vette such a fun drive.

And while the Corvette always got surprisingly good fuel economy for a small-block-powered sports car, the C7 should do even better, thanks to its new engine and that new seventh gear. Chevrolet claims the 2014 Corvette Stingray will get better than 26 mpg; considering we saw that in the outgoing car, that seems like a fair bet. Man, we wish this car would just get here, already. [via GM]

Press Release:

2014 Corvette Stingray Cranks Out 460 Horsepower
SAE certifications confirm new Corvette has most powerful standard engine ever

DETROIT – The 2014 Corvette Stingray’s all-new LT1 6.2L V-8 engine is SAE-certified at 460 horsepower (343 kW) at 6,000 rpm and 465 lb-ft of torque (630 Nm) at 4,600 rpm, with the available performance exhaust system, Chevrolet announced today.

The Stingray is SAE-certified at 455 horsepower (339 kW) and 460 lb-ft (624 Nm) with the standard exhaust system. They are the highest standard power ratings ever for the Corvette, delivered with efficiency that is expected to exceed 26 mpg on the highway.

“The 2014 Corvette Stingray’s LT1 engine is a triumph of advanced technology, delivering more power and torque than ever before with greater efficiency,” said Jordan Lee, Small Block chief engineer.

“The LT1’s performance complements the Corvette’s low mass with a tremendous feeling of power that builds as the rpm climbs. Drivers will experience more power and acceleration than ever before with the standard engine – in fact, its power and torque surpass many uplevel engines offered by competitors.”

At 74 horsepower 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. It also produces comparable torque to the LS7 – up to 4,700 rpm – and its peak torque is within 5 lb-ft of the 7.0L engine. That torque is generated early and sustained across the rpm band, with 316 lb-ft available at only 1,000 rpm and 90 percent of peak torque available from 3,000 rpm to 5,500 rpm – giving the lightweight Corvette Stingray excellent acceleration at all speeds.

Chevrolet estimates the Corvette will run from 0 to 60 mph in less than four 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 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.

Additional engine features include:

Advanced oiling system with oil-spray piston cooling and available dry-sump oiling
Engine-mounted, camshaft-driven fuel pump to support the direct injection system
Intake manifold with “runners in a box” design that allows for high-efficiency airflow packaged beneath the Corvette’s low hood line
High-flow, four-into-one exhaust manifolds based on the design of the LS7 engine.
Small Block legacy

The 2014 Corvette Stingray’s LT1 engine is the fifth generation of the Small Block engine family, which debuted in the Corvette in 1955. It displaced 4.3L (265 cubic inches) and was rated at 195 horsepower, drawing air and fuel through a four-barrel carburetor. Five years later, Small Block power helped Corvette secure its first victory at the 24 Hours of Le Mans.

In 2012, the Small Block-powered Corvette Racing C6.R beat Ferrari, BMW and Porsche to sweep the drivers’, team, and manufacturer championships in production-based American Le Mans Series GT class. These championships make Corvette Racing the most successful team in ALMS history, with a total of 77 class wins, eight drivers’ championships, and nine manufacturer and team championships since 2001.

The 2014 Corvette Stingray coupe goes on sale this fall, with a convertible following by the end of the year – each sharing an all-new aluminum frame structure and enhanced chassis, as well as completely new exterior and interior designs.


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