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5Mazda to run Skyactiv-D diesel engine in 2013 Grand Am GX class

Race teams in the Grand Am GX class can now get their hands on a new diesel powerplant. Mazda has announced the company will supply the new Skyactiv-D for the 2013 season. The race engines will use a stock 2.2-liter block with a two-stage turbo, just like the production version. Redline sits at a relatively lofty 5,200 rpm and the engine uses a very low 14:1 compression ratio. If you're keeping track, that's the lowest diesel compression ratio in the world.

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