Cadillac ATS’s Potent Turbo

Consider some new power density (displacement and horsepower relationship) figures from Audi and BMW. Clearly, that’s some serious power density. 

 

Consider these power density (displacement and horsepower relationship) figures:

  • *Audi A4 2.0-liter turbo: 105.5 hp/liter
  • *BMW M3 V8: 103.5 hp/liter
  • *Lexus IS F V8: 83.2 hp/liter
  • *Mercedes-Benz C250 1.8-liter turbo: 111.6 hp/liter

 

Now consider this:

  • *135 hp/liter

 

 Clearly, that’s some serious power density. 

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And that’s what General Motors says will be delivered by a new 2.0-liter turbo that will be offered in the second half of 2012 in the forthcoming 2013 Cadillac ATS. (The ATS is designed to compete with cars like those in the list above.)

According to Mike Anderson, chief engineer for the engine, “The 2.0T is one of the most advanced and efficient engines of its kind, and contributes to the ATS’s exceptional balance of performance and great fuel efficiency.”

As the engine is still being developed, fuel efficiency numbers aren’t established, and the overall 270-hp rating is an estimate.

However, what is tangible right now is the fact that it is a direct-injection twin-cam, four-valve-per-cylinder engine with continuously variable valve timing; twin-scroll turbocharger with air-to-air intercooler; forged-steel crankshaft with modular balance shaft system; and a two-stage variable-displacement oil pump with jet-spray piston cooling.

Anderson says that one of the means by which engine efficiency is being achieved is through the reduction of friction in the engine. It is reduced by 16% compared to the 2.0-liter turbocharged engine that’s available in the Buick Regal GS.

The engine will be manufactured at the Tonawanda Engine Plant in New York. It will be built at the Lansing Grand River Plant in Michigan.