DETROIT The upcoming and highly anticipated Pontiac Solstice GXP will feature General Motors' first North American application of a gasoline direct-injection or GDI system, a report says.
The setup will improve fuel economy, boost torque and lower cold-start emissions. The GDI system on the Solstice GXP comes on a turbocharged Ecotec 2.0-liter, four-cylinder engine, according to AutoTech Daily. It will produce 260 horsepower and 260 pound-feet of torque, with the highest specific output for any GM engine ever: 2.1 horsepower per cubic inch of displacement. Buyers will have the choice of a standard five-speed manual gearbox or an optional five-speed automatic.
GM engineers in the United States and Europe jointly developed the engine. GDI injects fuel directly into the combustion chamber instead of into an intake port. Audi has pioneered GDI technology in Europe and North America and has said it plans to convert nearly all of its gas engines to a direct-injection configuration in the next 10 years.
source:http://www.edmunds.com/insideline/do/News/articleId=109644