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    Detroit 2012: The 3 Engines Of ATS



    William Maley

    Editor/Reporter - CheersandGears.com

    December 14, 2011

    Today, Cadillac has revealed the powertrain lineup for their new ATS sedan. The lineup includes two fours and a six.

    The base ATS engine will be naturally aspirated 2.5L I-4 engine. GM hasn't released any details about it, but it looks like to be the same engine found under the new Chevrolet Malibu, which gets 190 HP and 180 lb-ft of torque.

    The next engine up is a 2.0L turbocharged I-4.Now before you go out and think this is the same engine you find in the Regal Turbo and GS, it's not. This 2.0L turbo is a part of a new Ecotec engine lineup and will use an electronically controlled twin-scroll turbocharger to keep its torque curve flat. The 2.0L Turbo is rated at 270 HP and 260 lb-ft of torque. The ATS will be the first vehicle to use this engine and could possibly find it's way into the new Malibu.

    The top engine is the venerable 3.6L direct injected V6 making 318 HP and 275 lb-ft of torque.

    Press Release is on Page 2


    New 2.0L Turbo Engine Boosts the Cadillac ATS

    • 135 horsepower per liter among top-performing engines in the world
    • Compact ATS debuts at North American International Auto Show in Detroit

    DETROITA new high-performance 2.0L turbocharged four-cylinder engine will debut in the all-new 2013 Cadillac ATS compact luxury sedan, which will be revealed at the 2012 North American International Auto Show in January.

    The Cadillac-tuned, direct-injected engine will produce an estimated 270 horsepower (201 kW). At 135 horsepower per liter, it will be one of the most power-dense automotive engines, besting the highest-performing engines from luxury competitors such as Audi, BMW and Mercedes.

    “This engine is the perfect match for the new ATS, which will be a refined performance luxury sedan,” said Don Butler, Cadillac vice president of Global Marketing. “The 2.0T has an exceptionally smooth and responsive power curve that will make the ATS nimble, quick and fun to drive.”

    The new 2.0T highlights a broad engine lineup that will power the ATS which is slated to begin production next summer. Cadillac will also offer a normally aspirated 2.5L four cylinder engine and a 3.6L V-6 engine in the ATS.

    The 2.0T builds on the advanced-technology heritage of previous GM turbo engines with features that enhance efficiency, durability and refinement.

    Among the 2.0T engine’s highlights: 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.

    Overall engine friction is reduced by up to 16 percent. The low-friction design means engine power is delivered more efficiently.

    Proprietary computational fluid dynamics analysis techniques were used to develop an all-new combustion system with a higher compression ratio, which also helped boost efficiency.

    “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,” said Mike Anderson, chief engineer for the 2.0T engine.

    The 2.0T has a wide torque curve, delivering 90 percent of its peak 260 lb-ft. of torque (353 Nm) from 1,500 rpm to 5,800 rpm – giving the ATS the feeling of immediate power, whether from launch at a stop light or during higher-speed maneuvers, such as passing.

    The turbocharger generates up to 20 pounds of boost and its twin-scroll design helps optimize power availability, virtually eliminating turbo lag and helping deliver a broad power band.

    “It has the exhilarating, responsive power available when you want it, yet can provide the fuel efficiency that will make the ATS a fully competitive vehicle in global markets,” Anderson said.

    At 135 hp/L, the ATS 2.0T four-cylinder turbo engine has the highest power density among key competitors, including:

    • Audi A4’s 2.0L turbo (105.5 hp/L)
    • BMW M3’s V-8 (103.5 hp/L)
    • Lexus IS F’s V-8 (83.2 hp/L)
    • Mercedes-Benz C250’s 1.8L turbo (111.6 hp/L)

    Additional details on the ATS will be announced at the 2012 NAIAS. The ATS will be built at the Lansing Grand River plant alongside the Cadillac CTS Sedan, Coupe and Sport Wagon and V-Series performance cars.

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    The Turbo will finally get a chassis that will let it show what it can really do.

    I now really don't expect a V8 in the V but I still expect a lot of power.

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    Naturally aspirated 2.5L sounds like a fail. Hope the 2.0T improves on what's offered on the Opels, Buicks, and Saabs, as they've been generally underperforming engines with lousy NVH.

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    2.5 N/A To cater EU Market. Infiniti and Lexus have the smaller displacement 2.5 with around 200hp. I think Cadillac is covering the entire spectrum.

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    I think the 2.5 might see a hp bump for the ATS.

    GM usually bumps the power when they turn their engines 90 degrees, so I agree.

    By how much do you think?

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    I just looked up competitors.

    The ATS will be matched only by the C-Class in the number of mainstream engine offerings (three). BMW, Infiniti, and Lexus only offer two, and Audi only has one.

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    I don't like the idea of the 2.5 liter, that belongs in Chevy, not a Cadillac. If they want a 3rd engine, it should be a turbo diesel 4-cylinder because they need it in foreign markets anyway. I do like the 2.0T and V6 choices. Although I think the V6 needs more torque to set itself apart from the 2.0T and compete better with the 335i.

    Problem is Cadillac is stuck with a 6-speed transmission while Infiniti, Mercedes and BMW have 7 or 8. So will the fuel economy and acceleration numbers be able to match up what that class has to offer.

    This new 2.0T has less horsepower and torque than a Hyundai Sonata Turbo, so I hope the tail pipe emissions from the ATS can cure birth defects in baby seals.

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    Well the Dodge Dart is going to have a nine-speed ZF transmission. Shame BMW is "stuck" with a lousy seven or eight, when an economy car... from DODGE... will have them beat by two cogs.

    What kind of rinky dink operation are they running? Get with the times, Germany.

    BMW has 8-speed ZF, Mercedes though makes their own transmission and will have a 9-speed by they time the Dodge Dart does. But kudos to Dodge, it will be the Dart and the S-class ushering in the era of 9 forward gears. Although Hyundai has already begun working on a 10-speed transmission so the Book of Genesis may be rewritten to "in the beginning, there was a V8 and RWD and then God said "let their 10 forward gears" and there were 10 forward gears.

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    I don't like the idea of the 2.8 liter, that belongs in a Mini, not a BMW. :P

    Huh? The biggest MINI engine is a 1.6, albeit a turbocharged one.

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    The 2.0 is not by any means stressed with the torque it will have. It will perform fine and run well into the six figures in miles with no issue. It is only now going to be in platform that it deserves.

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    I don't like the idea of the 2.5 liter, that belongs in Chevy, not a Cadillac. If they want a 3rd engine, it should be a turbo diesel 4-cylinder because they need it in foreign markets anyway. I do like the 2.0T and V6 choices. Although I think the V6 needs more torque to set itself apart from the 2.0T and compete better with the 335i.

    Problem is Cadillac is stuck with a 6-speed transmission while Infiniti, Mercedes and BMW have 7 or 8. So will the fuel economy and acceleration numbers be able to match up what that class has to offer.

    This new 2.0T has less horsepower and torque than a Hyundai Sonata Turbo, so I hope the tail pipe emissions from the ATS can cure birth defects in baby seals.

    The Hyundai is not an issue since this will not be the highest powered engine in this car as time moves on. This turbo is more like the 220 Turbo in the Regal. It is the better engine not the best to be offered.

    As for tranny GM does transmissions better than anyone. I am sure this car will be right no matter if it has 6-8 or 10 gears. Many of their six speeds now most people could not tell what gear they are in as they as so smooth. Even my 6 speed in the Malbu will suprise me on where it is at when I pull it into manual.

    Edited by hyperv6
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    Changing the LFX from transverse to longitudinal takes the power from 305 to 317. So I would expect the 2.5 to be over 200 in the ATS.

    Why just 317 from the LFX when it makes 323 in the Camaro?

    I would agree, and hope that you're right, on the 2.5.

    Edited by Lamar
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    Changing the LFX from transverse to longitudinal takes the power from 305 to 317. So I would expect the 2.5 to be over 200 in the ATS.

    Why just 317 from the LFX when it makes 323 in the Camaro?

    I would agree, and hope that you're right, on the 2.5.

    Probably different intake or exhaust..and the Camaro is probably 300-500lbs heavier, so it needs more power..

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