Those who have been keeping score at home were probably already expecting this, but Cadillac has officially announced that the 2013 ATS will debut an all-new 2.0L turbocharged Ecotec four cylinder engine rated at an estimated 270 horsepower and 260 pound-feet of torque. That translates to 135 horsepower per liter, which is equal to the current 2.0L Ecotec turbo found in the larger 2012 Buick Regal GS, but 35 lb.-ft. behind in the torque department. Fuel economy numbers have yet to be published, but don’t be surprised to see a rating of 30 MPG or more in the future.
What’s different about the new 2.0L is significant. For instance, the exhaust and intake are now opposite from where they used to be. The exhaust manifold has now been integrated into the cylinder head, and the engine will rev to a significant 6,800 RPM. Additionally, the new twin-scroll turbocharger supplied by Eaton will replace the Borg-Warner spool seen in the Regal GS. Then there is the attention to detail in noise reduction efforts, with significantly more fasteners clamping everything together. The 86mm x 86mm bore and stroke dimensions stay the same. The new engine will be assembled at GM’s Spring Hill, TN and Tonawanda, NY engine facilities.
Cadillac also mentions that GM’s naturally aspirated, more docile 2.5L Ecotec engine will make its way into the ATS, along with the popular 3.6L LFX V6 engine, which produces 318 horsepower in the larger CTS. There is a significant power difference between the three mills, and should give consumers the luxury of performance variety when the ATS launches in the summer of 2012. As for what will power the impending V edition, all signs point to something along the lines of a twin-turbo V6 flavor.