2009 CTS to get diesel V-6 (in Europe, at least)

W ell, we knew that this was coming…but now GM has officially unveiled the first of its new line of diesel engines. This one is a 2.9l V-6 co-developed with Italy’s VM Motori and will make its first appearance in the 2009 CTS.

2.9l DieselOf note is the output (250hp and 406lb*ft of torque – nope, that’s not a typo…400+ lb*ft) and the use of state-of-the-art technology that should give us in the States a good chance of seeing this or some related diesel engine in either a Cadillac (can you say ‘Escalade’) or at least some other GM products.

Expect to see some of these in car applications here if gas prices continue to rise.

Now for the press release:
GENEVA – General Motors Corp. unveiled a new 2.9-liter V-6 turbo-diesel engine that features state-of-the-art injection and combustion technology for low emissions and high performance.

The new engine (184 kW/250 hp) will be sold mainly in Europe and makes its debut at the Geneva Motor Show (March 8-18). Its first production application is scheduled for 2009 in the new Cadillac CTS.

“We expect the V-6 diesel to be highly competitive in the European luxury segment,” said Jim Taylor, Cadillac general manager. “With its excellent low-end torque and its high power output, it is a great fit with Cadillac’s performance-oriented brand character.”

The compact dual overhead cam, four-valve V-6 engine belongs to a new GM family of diesel engines, featuring an innovative closed-loop combustion control system designed to meet future emissions standards. The engine can be installed in a longitudinal or transverse layout and can be adapted to a wide range of two- or four-wheel-drive vehicles.

GM’s development of the new engine is being coordinated under the leadership of GM Powertrain’s European operations in Turin, Italy, in cooperation with VM Motori based in Cento, Italy . GM Powertrain will focus on the development of the clean combustion process, electronic engine control and exhaust-gas aftertreatment, as well as calibration and integration into GM vehicles. VM Motori will build the new unit at its plant in Cento, Italy, and is responsible for the mechanical aspects of the engine’s design, development and bench testing.

“The V-6 diesel integrates leading technologies and will deliver outstanding performance, fuel economy and low emissions,” said Roger Johansson, GM Powertrain Europe vice president.

The V-6 engine management system enables optimal fuel economy as well as reduced emissions and noise by using a recently developed combustion control technology. Key enablers of the system are high-speed, piezo-resistive cylinder pressure sensors that are integrated within the engine glow plugs. These specialized sensors acquire real-time data from the combustion process, enabling instantaneous fine-tuning of the fuel injection process. In the future, this clean combustion control technology will be introduced in other GM Powertrain diesel engines.

The high-pressure, common-rail system provides up to 2000 bar (29,000 psi) injection pressure. The injectors are quick-firing, piezo-electrically actuated, allowing up to eight injections per engine cycle. The aftertreatment system includes an oxidation catalyst and a particulate filter that are close-coupled to the engine to achieve future emissions standards.

An electronically controlled variable geometry turbocharger generates boost pressure. The engine has a torque of 550 Nm (406 lb.-ft.) beginning at 2000 rpm, while providing effective fuel economy and reduced emissions.

The new, compact V-6 powerhouse features aluminum cylinder heads and a 60-degree bank angle, 83.0 mm bore and 90.4 mm stroke, which results in displacement of 2935 cubic centimeters. The engine block is made of stronger and lighter Compacted Graphite Iron (compared to lower-strength aluminum or heavier grey cast iron) to optimize engine packaging, weight, refinement and performance.

  • WoodyR

    PLEASE can we have this in the USA?

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