Cadillac to Debut GM's Powerful New V-6 Clean Diesel
-GM’s first production application of innovative, closed-loop combustion technology
-Cadillac CTS adds engine to its portfolio in 2009
-Low emissions, high performance and excellent fuel economy
-184 kW/(250 hp), 550 Nm (406 lb.-ft.) torque, 2.9-liter displacement
-Compact design enables transverse and longitudinal installation
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.
>>>For Sale? Clicky!<<<
-----The orginal Mr.Goodwrench on the JBO since 11/99-----
nice looking , but id rather see a some twins on it
since i dont get putting a single on it , and putting it next to the intake , when you still gotta run intercooler piping
they still need to bring some of the diesel stuff back to cars here , now that they have been away from that gawd awefull 350 gas diesel motor
call it a eco-dura-tec
Edited 1 time(s). Last edited Tuesday, March 06, 2007 9:16 AM
Hope this one becomes a world engine.
Looks awesome.
I would imagine that if they put it in a cts ... that thing would fly
Nice numbers by the way!
Also, Im with GAM on this one, it should be available to the world, espeically if they want to compete with the european market
dan
Seriously.. There's a reason why Diesels are so bloody successful in Europe... it's the same reason it'd be successful here.
Nice. I wonder if that will make it into any light duty trucks.
05 M6 YJ GTO 1 of 447 12.767@109.93
The problem with diesels is that they don't conform to US antipollution standards. Europe only allows them because, as we all know, they are very lax on this air pollution thing.
Yeah, that must be it...
This engine has impressive numbers on paper, just look as it compares to one of the best diesels in world today.
Mercedes-Benz E320 Bluetec:
Engine 3.0L DOHC 24-valve V-6.
Aluminum cylinder block with cast-iron cylinder sleeves.
Net power 208 hp @ 3,800 rpm
Net torque 388 lb-ft @ 1,600 - 2,400 rpm
Compression ratio 16.5:1Fuel requirement Ultra-low-sulfur diesel fuel.
Cadillac has a smaller engine, but has more torque and hp, nice!
>>>For Sale? Clicky!<<<
-----The orginal Mr.Goodwrench on the JBO since 11/99-----
They also have a turbo.
05 M6 YJ GTO 1 of 447 12.767@109.93
Knoxfire wrote:The problem with diesels is that they don't conform to US antipollution standards. Europe only allows them because, as we all know, they are very lax on this air pollution thing.
Yeah, that must be it...
I heard something like that today on the radio. GM has this new design to where the fuel injection is controlled by a computer putting in the right amount of fuel when needed, thus lowering emissions. With this technology it should open up to the european market, since they have higher emision standards.
dan
That engine would be perfect in a Colorado, as the 2500HD Silverado's little brother. And if you look at both pics, there's a turbo compressor outlet right near the turbo and the inlet into the engine in the front, kinda similar to the Duramax that's the in Silverados.
Also the new tech of GM's is called Common Rail, it uses high pressure (27,000psi max) fuel in a shared rail similar to gas fuel injected cars. The new Duramax diesel pickups have catalytic convertors already, and I've seen a few with the exhaust particulate filters come thru the shop I work at already.
Lifes too short to drink cheap beer.
As we in the automotive world know, this has the makings for a great engine. And, the way modern diesels are constructed, they're excellent on fuel and not as pollution-heavy as many think. However, we are the informed ones. The general public only thinks of one thing when they put "Cadillac" and "Diesel" together:
And THAT is the reason that they will ultimately not sell in the North American market, regardless of how well constructed they are.
Here is my question, lets say a part on the turbo takes a dump. Will you have to replace the whole turbo (all of the parts) or will you just have to replace that part? I know that is a downfall when buying a turbo GM truck vs a turbo Ford truck.
dan
