New Light-Duty V-8 diesel after 2009

[More Power]

GM announced today that they will introduce a new V-8 turbo-diesel sometime after 2009 that was designed for the 1500-series applications. The goal is to improve fuel economy by 25 percent over that of the current gas V-8, and yet take up no more space than a current small-block gas engine. :cool:

Jim

[DieselDavy]

Jim,
Here is some more info on that engine as posted in "Automotive News" yesterday (Aug 24th).
Dave

"GM V-8 diesels for light trucks may be ready for 2010 models

Richard Truett | | Automotive News / August 24, 2006 - 3:51 pm




DETROIT -- General Motors will offer a 330-hp V-8 diesel engine for its light-duty trucks in the United States, possibly as early as the 2010 model year.

The engine is new and will meet the strictest emissions standards in all 50 states, said Tom Stephens, GM group vice president in charge of powertrains. The company plans to use a urea injection system to control emissions.

The automaker would not give the displacement of the engine but said it has double overhead cams and four valves per cylinder.

A GM spokesperson said likely candidates for the engine will be the GMC Yukon, Chevrolet Tahoe and Cadillac Escalade SUVs.

The automaker said the engines will provide 25 percent better fuel economy than the gasoline engines they replace. That would mean a fully equipped Tahoe with the diesel engine would get about 26 mpg in city driving. The current gasoline-powered Tahoe gets about 21 mpg in the city.

This would be GM's first light-duty diesel engine for North America since the disastrous car diesels it built in the late 1970s and early 1980s. Those engines were plagued by mechanical faults.

The Chrysler group will be first to the light-duty market with a diesel in its 2007 Jeep Grand Cherokee."

[Jake99Z71]

Why wait that long?
How much emissions garbage are they going to have on it? I doubt it will get that mileage the way emissions are going and the extra weight for all of it.

[16gaSxS]

GM at it's best 10 years between Diesel 1500 trucks. :rolleyes:

oh 4.4 L displacement......also why so many horses, cost money (fuel) to feed more ponies. Why not just use th 3.6 v-6 that is based on that produces about 270 hp. Thats more than 6.5 TD and would make it an easie fit in more engine bays.




GM to Introduce New Light-Duty Diesel for North America

High-efficiency V-8 scheduled for pickup trucks under 8,600 pounds Gross Vehicle Weight

MILFORD, Mich. - General Motors Corp. will introduce a new V-8 turbo-diesel that improves engine fuel efficiency by 25 percent for North American light duty trucks after 2009.

The premium V-8 diesel is expected to deliver class-leading torque, power and refinement while maintaining a significant fuel efficiency advantage over comparable output gasoline engines.

The new dual-overhead cam, four-valve V-8 diesel engine will fit within the same space as a small-block V-8 gasoline engine. This compact size is made possible by using an integrated air system and narrow block.

"This new GM light duty diesel is expected to become a favorite among customers who require excellent towing ability and fuel efficiency," said Tom Stephens, group vice president, GM Powertrain. "It will meet the stringent 2010 emissions standards, and it will be compliant in all 50 states, making it one of the cleanest diesel vehicles ever produced."

Environmental benefits of the new engine include a 13-percent reduction in CO2 versus gasoline engines, and at least a 90-percent reduction in particulates and NOx compared to diesel vehicles today. This will be GM's first engine to use a NOx after-treatment system with a diesel particulate filter to help achieve the Tier 2 Bin 5 and LEV 2 emissions standards.

Technical highlights of the engine include aluminum cylinder heads with integrated manifolding, compacted graphite iron (CGI) block for a strong engine base and fracture-split main bearing caps and connecting rods for a precise fit. A high-pressure, common-rail fuel system is used, which has the ability to inject fuel five times per combustion event to control noise and emissions.

GM (Opel, Saab, Vauxhall, GMDAT, Isuzu and Suzuki) currently offers 17 diesel engine variants in 45 vehicle lines around the world. GM sells more than one million diesel engines annually, with products that offer a range of choices from the 1.3L four-cylinder diesel engine sold in the Opel Agila and Corsa, up to the 6.6L V-8 Duramax diesel sold in full-size vans, heavy duty pickups and medium duty trucks in the U.S.

GM introduced the Duramax diesel 6.6L V-8 in the U.S. in the 2001 model year and since then, customer enthusiasm for this heavy duty diesel has been outstanding.