Technology expands the Ecotec's reach

Turbocharging, DI, and more boost 2011-12 vehicle applications for GM's do-it-all global four-cylinder.

The transformation of General Motors' North American powertrain portfolio continues at a rapid and in many ways dramatic pace. In 2011 more than 33% of GM's North American engine volume will be four-cylinder engines. Approximately 21% will be turbocharged-seven times more turbo engines than in 2007.

Powertrain analysts at IHS Automotive forecast these trendlines to continue. While V6s in the 3.0-4.0-L range are expected to remain core product for the U.S. market in the short to mid-term, GM Powertrain (GMPT) engineers have their eyes on U.S. EPA fuel economy regulations for 2016 and beyond, as well as Euro 6, which put significant focus on developing the automaker's global inline-four-cylinder range.