{"id":1050,"date":"2013-05-28T14:15:08","date_gmt":"2013-05-28T19:15:08","guid":{"rendered":"http:\/\/v8passion.com\/?p=1050"},"modified":"2013-06-04T12:51:52","modified_gmt":"2013-06-04T17:51:52","slug":"460-hp-for-corvette-stingrays-lt1","status":"publish","type":"post","link":"https:\/\/v8passion.com\/en\/news-vehicules-v8-passion-magazine\/460-hp-for-corvette-stingrays-lt1\/","title":{"rendered":"460 HP For Corvette Stingray\u2019s LT1"},"content":{"rendered":"

Chevrolet announced that the 2014 Corvette Stingray\u2019s all-new LT1 6.2L V-8 engine is SAE-certified at 460 horsepower at 6,000 rpm and 465 lb-ft of torque at 4,600 rpm, with the available performance exhaust system.<\/p>\n

The Stingray is SAE-certified at 455 horsepower and 460 lb-ft with the standard exhaust system.<\/p>\n

They are the highest standard power ratings ever for the Corvette, delivered with efficiency that is expected to exceed 26 mpg (7.7L\/100km) on the highway.<\/p>\n

\"2014-Corvette-LT1-V8-TorqueHP-medium\"<\/a>\u201cThe 2014 Corvette Stingray\u2019s LT1 engine is a triumph of advanced technology, delivering more power and torque than ever before with greater efficiency,\u201d said Jordan Lee, Small Block chief engineer. \u201cThe LT1\u2019s performance complements the Corvette\u2019s 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 \u2013 in fact, its power and torque surpass many uplevel engines offered by competitors.\u201d<\/p>\n

At 74 horsepower per liter, the LT1 has greater power density than the C6 Corvette\u2019s LS3 6.2L engine and even the C6 Z06\u2019s racing-derived 7.0L LS7. It also produces comparable torque to the LS7 \u2013 up to 4,700 rpm \u2013 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 \u2013 giving the lightweight Corvette Stingray excellent acceleration at all speeds.<\/p>\n

Chevrolet estimates the Corvette will run from 0 to 60 mph in less than four seconds.<\/p>\n

The new LT1 engine\u2019s high output, and high power density and efficiency are due to the combination of several technologies, including direct injection, Active Fuel Management and continuously variable valve timing, which support a specific combustion system.<\/p>\n

Chevrolet said direct injection is a primary contributor to the engine\u2019s combustion efficiency, ensuring a more complete burn of the fuel in the air-fuel mixture. That\u2019s 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.<\/p>\n

\"LT1_Stingray_FuelInjection\"<\/a>Active Fuel Management, or cylinder deactivation, is a\u00a0 first-ever application on Corvette. It helps save fuel by imperceptibly shutting down half of the engine\u2019s 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.<\/p>\n

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.<\/p>\n

Chevrolet also listed these additional engine features:<\/p>\n