Redesigned 2014 Cadillac CTS Snarls With New 420-HP Twin-Turbo V6 |

Redesigned 2014 Cadillac CTS Snarls With New 420-HP Twin-Turbo V6

Just the Facts:
  • The 2014 Cadillac CTS will launch later this year with an all-new, twin-turbocharged 3.6-liter V6.
  • The new V6 is unexpectedly stout, developing 420 horsepower and 430 pound-feet of torque.
  • The new-generation 2014 CTS also will offer a 2-liter turbocharged four-cylinder and the current CTS's 3.6-liter V6.

DETROIT — The new-generation 2014 Cadillac CTS hasn't been seen yet — General Motors Co.'s premium-vehicle division will unveil it at the 2013 New York Auto Show next week — but Cadillac today announced its totally redesigned midsize sedan will come to market with a rollicking new engine: a 3.6-liter twin-turbo V6 that generates an SAE-certified 420 horsepower and 430 pound-feet of torque.

And no, this engine and its 420 hp, long speculated by the industry gossip mill, is not for the CTS-V. Instead, it will put Cadillac firmly ahead of forced-induction six-cylinder midsize models from direct rivals such as the Audi A6 and BMW 5 Series.

If a V8-toting, V-Series version of the new-age CTS is in the cards, Cadillac officials said nothing about it today, instead keeping the focus on the new and most powerful V6 GM has ever produced. The company said the twin-turbo V6, a "comprehensive upgrade" of the current 3.6-liter, also is the most powerful six-cylinder in the midsize luxury segment. The new engine also will be available in the 2014 Cadillac XTS full-size sedan.

Cadillac said the all-aluminum twin-turbo V6 has its own specific block and head castings, reinforced connecting rods and an all-new design for its direct injection, among other features that differentiate it from the CTS's conventional 3.6-liter V6. The engine also borrowed its close-coupled "twin-brick" intercooler design from the current CTS-V's supercharged LSA 6.2-liter pushrod V8. The two intake circuits converge in a single, centrally located throttle body, helping to improve throttle response, engineers said.

The new twin-turbo V6 has a modest 10.2:1 compression ratio but will require premium unleaded, Cadillac said. Redline is 6,500 rpm. The engine develops 99 hp more than the projected 321 hp from the 2014 CTS's normally-aspirated 3.6-liter, but is 136 hp in arrears of the thumping supercharged 6.2-liter V8 of the current CTS-V, seemingly still leaving plenty of space for a V-Series powertrain for the new-generation CTS.

Backing the new twin-turbo V6 is an eight-speed, paddle-shifted, torque-converter automatic, GM's first confirmation of an eight-speeder for a production model. Unusually for GM, however, it is not a GM-made transmission; the unit is supplied by Japan's Aisin. GM's own eight-speed automatic, likely to be derived from a joint-venture development program with Ford, is not yet ready.

Along with the new twin-turbo V6, Cadillac said the 2014 CTS also will offer the existing 2.0-liter turbocharged four-cylinder (272 hp) introduced in the 2013 ATS and the normally aspirated 3.6-liter V6 (321 hp). The 2.0-liter will be hooked to GM's six-speed automatic with paddle-shift ability while the normally aspirated 3.6-liter V6 will get upgraded to the eight-speed automatic; rear drive is standard and all-wheel drive available. So what's missing here is a manual transmission for any driveline configuration and all-wheel-drive for the twin-turbo CTS.

To accompany power and torque figures for each of the 2014 CTS's three engines (preliminary for the 2.0-liter and 3.6-liter), Cadillac even went so far as to offer fuel economy projections: the new twin-turbo/eight-speed auto is expected to yield 17 mpg in the city and 25 mpg on the highway. The 2.0-liter, rear-drive CTS manages 19/30 in rear-drive configuration and 18/28 for the AWD model and it's 19/28 for the rear-drive 3.6-liter and 18/27 for AWD.

Edmunds says: With the smoking new twin-turbo V6, the 2014 Cadillac CTS is laying down the law to its European rivals.


  • greenpony greenpony Posts:

    It's not as impressive when you consider most automakers are running (or have recently run) higher specific outputs on other engines (GM included).

  • Shouldnt the ATS-V announcement be coming shortly?? While ill always be a sucker for V8's, this is exactly what the CTS needs. Having no option between ~330 HP and 556 was a really big gap. Cant wait for the new CTS!!

  • stovt001_ stovt001_ Posts:

    This engine sounds like it would be perfect for the ATS-V too. Greenpony - GM doesn't always go for the highest specific output - look no further than the LS series for evidence of that - but they generally deliver on torque and efficiency and the numbers provided here seem to back that up.

  • jederino jederino Posts:

    Yeah, specific output is interesting, but hardly the most useful measure of quality. I'm interested in the weight vs. the V8 and the european rivals' turbo sixes.

  • rwatson rwatson Posts:

    Please help me see things correctly. We're getting excited about another turbo engine? What happens in a couple years of ownership when you feel your power slipping away? Sure, they're awesome when new, but after 40 or 50k, they suffer from numerous boost leaks (many undetectable), "heat soak," and generally increased turbo-lag from the bearings slowly cooking. We, the consumer are once again taking it in the shorts, starting with the feds' CAFE standards (telling a manufacturer what they'll sell) and in the end being offered the choice between NA 4 cylinders and turbos that become less fun to drive each year. Please someone, help clear my mind and convince me to be happy about all this.

  • bizzle1 bizzle1 Posts:

    That is one beautiful engine. A work of art. I can't wait to see the new CTS!!!

  • ramjr ramjr Posts:

    sweeeeeeeet..... now just make the car cost under 50k

  • _driver72_ _driver72_ Posts:

    Surprised nobody at GM mentioned it and nobody at Edmunds did either, but my money is that this is also the engine that will be used for the Cadillac ATS-V.

  • tbone85 tbone85 Posts:

    I think it's logical for this to be the ATS-V engine. If all the goodies only add 50-100 lbs (plumbing wheels/tires,etc.) this has the potential to be a very nice engine for the V. 420 hp/430lb-ft torque has the potential to move 3500 pounds of RWD vehicle quite crisply. If that car maintains or even betters the ATS handling formula, it will be a nice achievement.

  • greenpony greenpony Posts:

    All I'm saying is that this engine is not special when placed in perspective in the marketplace. Turbo six cylinder engines are offered by BMW, Ford, Porsche, and Nissan (and probably others that I can't remember). Although GM is apparently proud of joining that club, that's hardly "laying down the law".

  • jederino jederino Posts:

    Well, greenpony, this is a more powerful unit than the other turbo-sixes, save the Porsche. If I lived at high elevation, I may consider this motor, but I prefer the Corvette's new N/A V8!

  • shatner shatner Posts:

    jederino Don't forget the Nissan GT-R a v6 with 530hp or whatever it is these days.

  • This would be a great engine in an Impala police cruiser version, or even the Chevy Caprice police car. I hope GM uses it alot, tuned differently of course depending on the application.

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