2012 GM Ecotec 2.0 L is new SAE specific-output king (video)

  • 21-Jun-2011 08:22 EDT
12-Buick-Regal-GS-1805.jpg

Ecotec 2.0-L turbo highlights include direct injection, a twin-scroll turbocharger with optimized intercooler, continuously variable valve timing, and a forged steel crankshaft.

General Motors claims its 2012 Buick Regal GS sedan features the most power-dense engine ever offered by GM and ever certified by SAE International. The Ecotec 2.0-L delivers an SAE-certified 270 hp (201 kW), for a specific output of 135 hp/L. At 295 lb·ft (400 N·m), the four-cylinder provides more torque than competitors including the Acura TSX V-6, Audi A4 Sport, Lexus IS 250, and Volvo S60 T5, according to GM. The direct-injected gasoline engine features a twin-scroll turbocharger, continuously variable valve timing, and a forged steel crankshaft. The engine, known internally as the LHQ, is mated to a six-speed manual transmission. GM expects the powertrain to achieve 28 mpg on the highway. (See GM engineers describe the car here.)

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