Confusion 2.0: GM Readies New Turbo Four-Cylinder
Expect the new 2.0 turbo to have at least 270 HP.
October 4, 2011
By: Nick Saporito
Debuting back in 2006, General Motors first became famous for the 2.0-liter displacement with the coveted LNF. The Ecotec four-cylinder was quickly made famous for its 260 horsepower and 260 foot-pounds of torque. Since then the 2.0-liter has been a hot topic in regards to GM applications, but GMI hears it’s about to get hotter with the launch of an all-new 2.0-liter turbo.
Today the LNF is no longer being utilized in any vehicles, however a variation of the engine is still in production for the Buick Regal Turbo and Regal GS in North America, and the Opel Insignia in Europe. The 2.0-liter mill in all three applications wears the name LHU.
In the Regal Turbo and Insignia the engine generates a modest 220 horsepower and 258 foot-pounds of torque, while the high-output Regal GS generates 270 horsepower and 295 foot-pounds of torque.
Much confusion has surfaced that the 2.0-liter turbo in the Regal GS is the "new" 2.0-liter, but that is incorrect. In the Regal GS GM has upped the boost level on the turbocharger and increased exhaust flow to generate the increased power figures. Because the modifications are minimal, it is simply referred to as the high output version of the LHU.
According to sources familiar with engine development, GM is readying an all-new Ecotec 2.0-liter turbo engine. The engine is expected to debut in 2012 in the upcoming Cadillac small sedan, codenamed ATS. Sources also state that the engine will be the V-6 replacement for the all-new Chevrolet Malibu.
Exact power figures for the new 2.0-liter turbo are not known at this time, however sources told GMI to expect it to generate between 270 and 280 horsepower. The engine is reportedly an all-new design and will be part of the new family of Ecotec four-cylinders at GM, joining the recently announced Ecotec 2.5-liter, also found in the 2013 Chevrolet Malibu.
Back in August GMI confirmed that future GM midsize sedans would only see four-cylinder power. The news of this new 2.0-turbo suggests that the V-6 exodus in the GM midsize sedan lineup may not be as much of a problem as originally thought.
GMI's source concluded by saying that the new 2.0-liter turbo will be "The engine of choice" at GM going forward.