Chrysler Group has announced plans to begin production of a new line of fuel-efficient V6 engines referred to as "Phoenix" engines. The new engines will utilize advanced technologies, including dual-VVT and cylinder deactivation.

The company is investing $1.18 billion to build the engines at new facilities in Wisconsin and Michigan. Altogether the new plants are expected to employ 1185 full-time workers when they reach full production in 2010.

The Phoenix engines will use dual-VVT to vary the timing of the engine's intake and exhaust valves, thereby improving efficiency. The technology was first used by Chrysler Group on its I4 World Engines.

Additionally, cylinder deactivation will shut down three of the Phoenix engine's cylinders during light driving conditions when they are not needed. The cylinders will automatically turn back on when driving conditions become more demanding. This technology is currently used on Chrysler Group's V-8 engine in the Jeep Grand Cherokee.

Together, these advanced engine technologies will make the Phoenix engines 6 to 8% more efficient than conventional V-6 engines, while also improving their performance.

The two plants are expected to produce 400,000 engines each when they reach full capacity. The engines will be used on Chrysler Group vehicles in the 2010 model year.

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