SEMA eNews, Vol. 10, No.26 - Jun 28, 2007
GM'S NEW DIESEL FOR 2009


According to a recent WardsAuto.com article, the Hummer H2 and Chevrolet and GMC light-duty pickups built after 2009 will come available with an all-new 4.5L V8 Duramax turbodiesel. The new powerplant will be produced at General Motors Corp.'s Tonawanda, New York, plant.

According to the article, the 4.5L Duramax is a means of improving the fuel efficiency of some of the automaker's biggest vehicles. The new engine is expected to emit 13% less carbon dioxide than existing gasoline engines. It will also reduce the particulates and oxides of nitrogen emissions by 90% over today's diesel powerplants. Tom Stephens, group vice-president of GM's global powertrain and quality, says that the new diesel "is expected to become a favorite among customers who require excellent towing ability and fuel efficiency." The new Duramax will meet all 2010 emissions standards in the United States and will be 50-state compliant.

The 4.5L will be a DOHC V8 with more than 310 hp and 520 lb.-ft. of torque. It will also be the first GM engine to feature selective catalytic-reduction exhaust aftertreatment and a diesel particulate filter, which will help it meet the new U.S. Tier 2 Bin 5 emissions standards. The powerplant will feature a graphite-iron block, aluminum cylinder heads with integrated manifolds, an intercooled variable-geometry turbocharger and a high-pressure common-rail fuel-injection system capable of five injection events per cycle.

GM officials who were on hand for test drives of the 2008 Hummer H2 and H3 Alpha declined to confirm any details on the aftertreatment technology. However, a urea-injection system will likely be needed to meet future emissions standards, according to the WardsAuto.com article. One of the most interesting features of new Duramax is its ability to be mounted in the same space as GM's small-block V8 lineup. This allows for easier adaptation for a wide variety of vehicles, as the diesel market continues to grow. Could we see this Duramax in any of GM's passenger cars?

Not only will the new Duramax serve to boost the fuel efficiency of vehicles such as the H2, but as WardsAuto.com points out, it will also help to improve the image of the Hummer brand, which is under constant attack by the environmentalists. The 4.5L Duramax will also be capable of running on some mix of biodiesel, according to Martin Walsh, Hummer General Manager. GM will be investing $100 million in the Tonawanda, New York, plant where the new diesel will be produced. GM will also dispense an additional $41 million for vendor tooling, containers and investment at other locations. Output of the new diesel is slated to get underway in the fourth quarter of 2009, and the project is expected to retain 150 hourly jobs at the plant.

Source: Sutton, Mike. (June 15, 2007). "Hummer H2 to Feature All-New Diesel After 2009." WardsAuto.com. Retrieved June 18, 2007 from www.wardsauto.com.

Really does look like a replacement for gas engines. I would say that will mean THREE Duramax diesels being sold in US.:D

Now if only they'd get the 4th over here in the US. Isuzu has a "D-MAX" Pick-up thingy overseas, about the size of the Colorado/Canyon with about a 2.5L turboed diesel in it.

What are the THREE duramaxes sold in the U.S. going to be?

The new 4.5L one, the 6600, and the 7800 (I think it's 7.8 Liters) Inline 6 in the 6500+ Series Trucks.

I have seen a 7.8 duramax. Very impressive as far as a medium duty engine in acceleration.

However, a urea-injection system will likely be needed to meet future emissions standards

So what's this... a hose you strap on. You gotta pee to make your truck go down the road!

Talk about eliminating stops on road trips! :D

I'm glad I have an '08 on order. Get your 6.6 while you still can!

urea=piss

I'm glad I have an '08 on order. Get your 6.6 while you still can!


I like your thinking ;), but it is not designed to be a replacement for the 6.6L. From my understanding it is more for the Silverado 1500, Tahoe and Suburban.

FYI...(even though I hate to say it) Ford has one in development for their half tons also. They are supposedly further along. Sources say, it will probably be out before GM's :(

I like your thinking ;), but it is not designed to be a replacement for the 6.6L. From my understanding it is more for the Silverado 1500, Tahoe and Suburban.

FYI...(even though I hate to say it) Ford has one in development for their half tons also. They are supposedly further along. Sources say, it will probably be out before GM's :(

Like everything else. I gotta tell ya. If I wasn't such a Chevy guy, I'd almost buy a Ford. Except of course for the Flames out the exhaust! :eek:

As soon as I the H2's hit the lot with the four-five I will be getting one.

Here is an update from todays news:

Driven to Diesels (http://www.magnetmail1.net/ls.cfm?r=12883380&sid=2474882&m=329984&u=NADA&s=http://www.autonews.com/apps/pbcs.dll/article?AID=/20070702/SUB/70629028/1175)

The Detroit three are racing to install fuel-saving diesel engines in their U.S. light trucks. Nissan and Toyota may be in the race, too. Diesels are common in domestic brands' heavy-duty pickups. But fuel economy concerns and competitive pressures are prompting automakers to put them in light-duty trucks as well. In 2009, Ford Motor Co. likely will be first to market when it puts a diesel in the F-150 pickup. Diesel engines, which boost fuel economy by 25 to 30 percent, can't get here soon enough for dealers who sell trucks. Diesels also attract customers because they can tow heavier loads and have higher resale value. "That's what people have been waiting for," says Shaun Laird, new-truck sales manager at Hummer of Orlando in Altamonte Springs, Fla. "They'll want the diesel engine for both the added towing capability and the fuel economy." A diesel costs a consumer an average of $6,660 more than a comparable gasoline engine. But after 4 and a half years of ownership, a diesel truck is worth $4,700 more than a gasoline-powered truck, according to a study by the Martec Group, a marketing and consulting firm. Also after 4 and a half years, the diesel owner has spent about $4,200 less on fuel than the gasoline engine owner, Martec says. Diesel truck sales generate at least $1 billion in additional profits to the Detroit three, Martec says.
Source: Automotive News (http://www.magnetmail1.net/ls.cfm?r=12883380&sid=2474883&m=329984&u=NADA&s=http://www.autonews.com/apps/pbcs.dll/article?AID=/20070702/SUB/70629028/1175)

Which diesel is in the gm 2500 van, I looked at one for work but went with 2500 pu.

6.6L DuraMax detuned to 250HP/460LB. FT with a 4L85E Heavy Duty Hydromatic Transmission.

Damn i was hoping they were coming out with at least a 500hp new duramax

Thanks chevy dealer. A person could tune it up, but how much more could the tranny hold . I still might be interested. I need to buy 2 more vehicles for work. The vans still have possibilities. Do you know what the fuel mileage has been.

Why does it need to make as much power as an LB7? How about a 200 hp/360 ft lb diesel........that actually gets decent mileage.

How bout a diesel electric truck that gets 30mpg.

If this diesel is supposed to fit in where the 5.3 fits, and there wanting to put the 5.3 in the colorado. Why not put the 4.5 in the colorado too. That would be a fast and powerful colorado.

Light Duty Diesels in the pipeline

GM DuraMax 4.5L Turbo V8 for the Silverado/Sierra and H2 in 2010. At least 310hp and 520lbs-ft Torque.

Ford 4.4L Turbo V8 for the F150 and possibly the Expedition in 2009. This is a larger version of the 3.6L used in the European Land Rover/Range Rover.

Dodge Cummins 4.2L Turbo V6 for the Ram 1500 in 2010. Early version cranked out 190hp and 570 Torque.

Nissan Iffy. May use a V6 or V8 Diesel in the Titan from International around 2010

Toyota Iffy. Diesel for the Tundra might come from truck affiliate Hino in 2010 at the earliest.

I didn't really know where to start this thread but here is an article about an upcoming 4.5L V8 Duramax.

http://www.sedans.autoblog.com/2007/06/15/gm-announces-clean-diesel-v8-for-pickups-and-the-hummer-h2/

beautiful!

all gm,no outside involvement from isuzu...

those 1/2 tons are gonna haul arse :D :D


-Colin

Ahhh, the return of the diesel 'burb. :ro)

I want a diesel Avalanche, hell, I think I'll have 2!!

I could see myself in a short bed 1/2 ton with 20's and and this in it with EFI live pushing 400+ HP.:D

Day dreaming again...:rolleyes:

A Hummer H2 for me. :D Mike

I work at the Tonawanda Engine plant in buffalo NY, where the new duramax wil be built. We have been told that the engine parts are going to be shipped to us fully machined and we are just going to assemble the engine components. Unlike our other engine lines where we machine the block, crank, cams, rods, and heads. I have also been told base hp will be 310 and 520 ft.lbs. of torque. I will keep you posted on any updates I get.

ill take a diesel denali thank you..

dam that thing puts out as much power as my lb7 did:eek:

400rwhp should be no problem for that thing;)

Well its about time!! Yukon xl denali please-the wiff already has one, but she needs a diesel, she just doesn't know it yet.:D

i can't make up my mind which one I want 1500, avai, h2, tahoe, this will be a great day for america.

What other engines do you make at the plant Hemieater?

anyone know what tranny these things will have? 5 speed alli?

Holy cow, that's cool. very impressive numbers as stated. I may need another company vehicle when those things come out and we find a way to defeat the emissions.

I decided to restore my wife's '86 Ford stepside - she can drive it until this new engine is available then switch to a Sierra 1500 or Yukon. Can't get enough of anything Duramax. Hope it isn't a "vaporware engine" planed but never delivered.

anyone know what tranny these things will have? 5 speed alli?

Ally won't fit or it would already be in there.

That will be truly impressive.

"Pickuptruck.com's Mike Levine has learned from GM that despite sharing its name with the older 6.6L Duramax diesel that was developed in partnership with Isuzu, the new 4.5L Duramax was developed completely in-house by GM."

That paragraph there coupled with the fact that its 1st year production tells me all I need to know about reliability.

^ most unfortunately.... i hope not.

Reg cab short bed 4wd for me... I'm excited already :)

i think a DMAX Vette...hehe... i would really enjoy that!!!! :eek: :cool:

-Colin

Finally I can get rid of this gasser yukon xl and get another FREAKIN DIESEL!!! Bring it on GM...By the time it comes out my yuk will be paid off anyways...I'll NEED a new toy then...

this will definitely put ford out of business

Everything should have a duramax, the wifes car, the tractor, the lawnmower, my four wheeler............:)

Put mine in a Corvette please...

this will definitely put ford out of business

Ford will put Ford out of business. We should concentrate on putting Nissan and Toyota out of business.

:beerchug: I'll second that rcpd34... a toast to their demise!:nutkick:

People that don't have a Duramax in the house, don't realize how things have changed. They still have this image of a noisey stinkin motor. I'd swap my wifes Expedition in a Chevy heart beat for a Yukon with a little bidy Duramax.
Imagine the milage we can get out a one a those with a few tweaks.

People that don't have a Duramax in the house, don't realize how things have changed. They still have this image of a noisey stinkin motor. I'd swap my wifes Expedition in a Chevy heart beat for a Yukon with a little bidy Duramax.
Imagine the milage we can get out a one a those with a few tweaks.


Sorry, but i disagree. The LAST thing we need is Soccer mom's doing AWD burnouts on game day loaded with the kiddies.

And imagine the 80 ear old blue hair that cant drive too well.... and we unleash something like that on him.


Oh wel, on the brite side, Integrated manifold and turbo will make upgrade decisions easier.

How would you like your Twins sir?

Big
Real Big
Holy Shi!
:D

:iamwithst I like twins:D

maybe they'll even offer a hybrid/diesel...just think of the mileage you could get then...

ha, I'm just happy that the diesel will be coming out for the SUVs...:D

I was just thinking about how much I would have to drop into my gasser in order to convert it to a diesel...a bit much, I'll just be patient and wait...well.....try to anyways

Here we go another converted gas engine :eek:

nah...i'm not going to convert...i'll just wait

I read a similar article a few weeks ago and I am glad. I wont be looking at a Mazda, Honda, or Saturn SUV with 3rd row seating anymore since the ole lady didn't want the gas guzzler Tahoe or Suburban. I think she will no longer have any say. Hello 2500 Suburban!
:beerchug:

I read a similar article a few weeks ago and I am glad. I wont be looking at a Mazda, Honda, or Saturn SUV with 3rd row seating anymore since the ole lady didn't want the gas guzzler Tahoe or Suburban. I think she will no longer have any say. Hello 2500 Suburban!
:beerchug:


haha... cant wait to see them in production!

-Colin

ill take a r/c s/b 2wd lowered on 24's withi airride and lil dmax with stacks

Damnit, I wish these would have come out this year, just bought my Wife a new Denali, and the damn thing eats gas like crazy. Put a Duramax in it and it'd be freaking sweet!

Did anyone notice the following in the release:

"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 selective catalytic reduction NOx aftertreatment system with a diesel particulate filter to help achieve the Tier 2 Bin 5 and LEV 2 emissions standards.

Selective Catalytic Reduction (SCR) commonly uses as a reductant urea or ammonia with the special catalytic converter to combat NOX emissions. Generally, SCR requires an on vehicle storage tank and periodic refills to accomplish this. Due to the lack of a distribution infrastructure for both ammonia and urea, the US EPA has been reluctant to certify any diesel engines fitted with SCR. Since there is no infrastucture in place for urea or ammonia tank refilling, it can only be presumed that this will involve on board generation of a reductant for the SCR to work.

There will still be a diesel particulate filter (DPF) so there will still be the regen process to rid the DPF of accumulated soot.

This whole process (Diesel Oxygen Catalyst, Selective Catalyst Reduction, Diesel Particulate Filter) is the way that diesel engines in trucks, stationary engines, coal burning plants, smaller vehicles, etc will be headed in the future, not only in the US, but also worldwide.

I love the idea of a smaller Duramax for the 1/2 tons.

As far as the engine being built in-house, didn't GM retain DMAX after they split with Isuzu? So technically, they still have access to all the knowledge and engineers used to develop the Duramax, they're just working solely for GM now, allowing GM to say it's in-house? If so, they'll be no need to even second guess the future success of the new motor.

I'm not too happy about the urea injection though. Maybe after heaing how they plan on making it work, I'll be ok with it. Does anyone know what kind of urea will be used? My family owns a lawn spraying business, so I can get my hands on all kinds of granular urea, which would be a plus.

Did anyone notice the following in the release:

"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 selective catalytic reduction NOx aftertreatment system with a diesel particulate filter to help achieve the Tier 2 Bin 5 and LEV 2 emissions standards.

Selective Catalytic Reduction (SCR) commonly uses as a reductant urea or ammonia with the special catalytic converter to combat NOX emissions. Generally, SCR requires an on vehicle storage tank and periodic refills to accomplish this. Due to the lack of a distribution infrastructure for both ammonia and urea, the US EPA has been reluctant to certify any diesel engines fitted with SCR. Since there is no infrastucture in place for urea or ammonia tank refilling, it can only be presumed that this will involve on board generation of a reductant for the SCR to work.

There will still be a diesel particulate filter (DPF) so there will still be the regen process to rid the DPF of accumulated soot.

This whole process (Diesel Oxygen Catalyst, Selective Catalyst Reduction, Diesel Particulate Filter) is the way that diesel engines in trucks, stationary engines, coal burning plants, smaller vehicles, etc will be headed in the future, not only in the US, but also worldwide.

Tried not to notice but I imagine most of us did. I think we are all just excited that this could possibly happen and we would have the power to pull something with the Suburban or Tahoe and all the rest of the rigs it could be placed in. I know lots of people that have more than 4 passengers and could use the 3rd row seating (instead of taking 2 vehicles) and so they settle on the gasser Suburban or tahoe when they need the power of a Dmax to tow that 30+ foot toy hauler. The Ford Excursion with Power Stroke just don't do it and the Dmax Suburban would.....IMHO.

Hemi eater,is their any truth in a 6 cylinder dmax?

http://digiads.com.au/car-news/images/synd/media74_36_58_802007072510_pic-lrg_article_10492-img_0.jpg (http://digiads.com.au/car-news/latest-GM-news/2007_GMs_New_4_5L_V8_Duramax_Turbo_Diesel_200706.h tml)

http://blogs.edmunds.com/Straightline/2935 - this should be a link to one page i read.

Anyone hear anything about the new duramax engine that rumor has it may find its way into the 1/2 ton trucks? Just ran a cross it online and wondered what everyone had heard. Is it rumor to not

http://www.dieselplace.com/forum/showthread.php?t=165361

I keep telling my friends when I first caught word of this to hold off a few more years "if they can" on buying a 1/2 ton Pick Up because of these new optional engines coming out.

How about that new 4.5 duramax being capable of doing 30mpg highway:D
http://www.pickuptruck.com/html/news/gm/fullsize/newdieselsfromgm.html

I just wish they could do away with the particulate filter and urea. I think Honda is doing it with a different cat converter. Maybe GM could get a license to use it. I think a 4.5 Tahoe might be in the future.

Toyota has a new 4.5 turbodiesel in the Australian market 70 Series Land Cruiser work trucks. Click on this link:

http://www.toyota.com.au/toyota/vehicle/Content/0,4664,4119_1612,00.html

Bet they'll work out the bugs Down Under, then put the 4.5 in the Tundra by 2010. The real competition for GM's new 4.5 package.

2010 is gonna get interesting.

http://www.autoblog.com/2007/06/15/gm-announces-clean-diesel-v8-for-pickups-and-the-hummer-h2/

http://www.blogsmithmedia.com/www.autoblog.com/media/2007/06/x08pt_8c091.jpg

Mark your calendars, because we're calling today a watershed moment for the advancement of diesel's acceptance in the U.S. General Motors has just announced a new 4.5L V8 Duramax turbo-diesel powerplant it plans to use in the Chevy Silverado (http://autos.aol.com/chevrolet-silverado-1500-2007:8646-overview) and GMC Sierra (http://autos.aol.com/gmc-sierra-1500-2007:8645-overview) half-ton pickups, as well as the HUMMER H2 (http://autos.aol.com/hummer-h2-suv-2007:8400-overview). The new oil burner is expected to produce at least 310 horsepower and 520 ft-lbs. of torque. It features dual-overhead cams, four valves per cylinder, a variable-vane turbocharger and aluminum cylinder heads with integrated manifolding that helps keep the overall package small enough to fit in the same space as the automaker's small-block gas V8s.

That's right, just imagine the possibilities. Wherever GM uses a small-block V8 gas engine, it could potentially use the 4.5L V8 Duramax diesel. In a few years we could be driving diesel Impalas, diesel Camaros, maybe even a diesel Corvette! To quote GM's press release, the engine's small size gives it "the flexibility to introduce this engine in a wide variety of vehicle applications should there be future market demand." Indeed.

GM estimates that the engine will improve fuel efficiency by 25%, reduce CO2 emissions by 13% and decrease particulate and NOx emissions by at least 90% in its GMT900 pickups and the HUMMER H2. Whoever said the HUMMER H2 was on its way out will likely be proven incorrect after this engine debuts. Scheduled to be built at the GM Tonawanda engine plant outside Buffalo, NY, the 4.5L V8 Duramax diesel will be 50-state emissions compliant and meet 2010 diesel emissions standards, as well. GM claims its new diesel will also have NVH (Noise, Vibration and Harshness) levels approaching those of today's current gas V8s, though we'll have to wait and see if that wish comes true. That wait should end in a couple of years, as the automaker states the engine will be available in Silverado, Sierra and H2 models built after 2009.

UPDATE: Pickuptruck.com's Mike Levine has learned (http://www.pickuptruck.com/html/news/gm/fullsize/newdieselsfromgm.html) from GM that despite sharing its name with the older 6.6L Duramax diesel that was developed in partnership with Isuzu, the new 4.5L Duramax was developed completely in-house by GM.

Check out GM's full press release after the jump for more details.

[Source: GM]

PRESS RELEASE:

GM Plans First Light Duty V-8 Clean Diesel For North America

High-efficiency V-8 scheduled for pickup trucks under 8,600 pounds Gross Vehicle Weight and HUMMER H2
Low emissions, high performance and excellent fuel economy
Expected to deliver class-leading torque, power and refinement
Manufactured at the GM Powertrain Tonawanda engine plant TONAWANDA, N.Y. – General Motors Corp. will introduce a new, state-of-the-art 4.5L V-8 Duramax turbo-diesel that improves engine fuel efficiency by 25 percent, reduces CO2 emissions by 13 percent and cuts particulates and NOx emissions by at least 90 percent for North American light duty trucks and the HUMMER H2 built 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 of a small-block V-8 gasoline engine. This compact size is made possible by using integral cylinder head exhaust manifolds, integral cam cover intake manifolds and a 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 Global Powertrain and Quality. "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 selective catalytic reduction NOx aftertreatment 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; a variable-vane turbocharger with intercooling; a Compacted Graphite Iron (CGI) block for a stronger and lighter engine base (compared to lower-strength aluminum or heavier grey cast iron); and fracture-split main bearing caps and connecting rods for a precise fit. An electronically controlled, ultra-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.

"This new V-8 is not only a clean diesel meeting the toughest emissions requirements in North America, it also delivers an effortless performance feel because of its high torque across the speed range," said Charlie Freese, executive director of GM Powertrain Diesel Engineering. "It is also significantly quieter than other diesels on the road today, with noise and vibration performance approaching gasoline V-8 levels."

Freese said the new V-8's compact size enables it to fit in the envelope of a gasoline small-block engine, which provides GM the flexibility to introduce this engine in a wide variety of vehicle applications should there be future market demand.

The premium V-8 diesel engine is expected to deliver class-leading refinement, horsepower and torque and fulfill multiple vehicle applications with ratings in excess of 310 horsepower and 520 lb-ft of torque.

GM (Opel, Saab, Vauxhall and GMDAT ) 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 first 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. In fact, GM's heavy duty pickup truck market share has jumped nearly tenfold in the six years that Duramax engines have been offered.

General Motors Corp. (NYSE: GM), the world's largest automaker, has been the annual global industry sales leader for 76 years. Founded in 1908, GM today employs about 280,000 people around the world. With global headquarters in Detroit, GM manufactures its cars and trucks in 33 countries. In 2006, nearly 9.1 million GM cars and trucks were sold globally under the following brands: Buick, Cadillac, Chevrolet, GMC, GM Daewoo, Holden, HUMMER, Opel, Pontiac, Saab, Saturn and Vauxhall. GM's OnStar subsidiary is the industry leader in vehicle safety, security and information services. More information on GM can be found at www.gm.com.

cooool!

Not sure where to put this since it's not one of the current engines for which there is a header. Check it out. Diesel Power claimed 340HP/590ft-lb.

http://www.autoblog.com/2007/06/15/gm-announces-clean-diesel-v8-for-pickups-and-the-hummer-h2/

Wow. That little V8's putting out LB7/LLY power. Imagine the performance possibilities w/ that engine. Dual overhead cams, 4 valves per cylinder, aluminum heads... seems to be stout.

This article is also in this months Diesel Power Magazine. Think I know what my next truck is going to be...that much power in a 1500!

What transmission is most probable for this engine? If they are saying 25% increase in mpg, then what is the range to be expected?

These trucks are gonna move all that power and being that it is the 1/2 ton series less weight

This has been posted about as many times as that "World's Biggest Diesel Engine" has. ):h


http://dieselplace.com/forum/showthread.php?t=173474

http://dieselplace.com/forum/showthread.php?t=165361

http://dieselplace.com/forum/showthread.php?t=171006

http://dieselplace.com/forum/showthread.php?t=167618

http://dieselplace.com/forum/showthread.php?t=163970

Be nice to see 30mpg,and EFI tunable :D .

Sounds like a winner. Just hope, being a inhouse design, that they learned a lot from Isuzu. I remember the Corvair disaster in the early 60's when GM fooled around with the Porsche/VW designed air cooled engine.

Diesel Suburban! I'll keep my fingers crossed.

Saw my latest issue of Diesel Power Magazine today...and according to them GM has finally wised up. A 4.5L Duramax will be in the MY 09 half ton pickups. They are saying about 310-340 hp and 500+ in torque. Is it possible that an automaker is actually listening to what we have been wanting all along???? Although that can't be possible, that would make sense.

Every 4.5L thread has been moved and merged to this one thread. Please post on this thread if you have any further updates and all future threads posted will be merged with this one as well.

Thanks...

This was what I was really hoping for in a half-ton. I talked to a acquaintance with 40 years of diesel experiece. After reading the info, he was discouraging saying it seems like they are attempting to make it a one size fits all engine and noted that the componets that were mentioned as strengthened were probably found to be weak points.

He mentioned that another large diesel maker abandoned the V-style configuration in the past due to inherent problems. I was not aware of that. I was pretty upbeat about this motor, but now wonder if I need to hope for a Toyota with a CAT. :(

n e one know what the base price for say a 1500 with the 4.5 would be?

n e one know what the base price for say a 1500 with the 4.5 would be?

Pricing? On an imaginary truck? GM couldn't even provide pricing on my '08 until after it had been built and shipped!

:funnypost, so true :D Mike

They'll probably mate that w/a 4L80 for the pseudo "HD" version and a 4L60 for the everyday half-ton types.

This was what I was really hoping for in a half-ton. I talked to a acquaintance with 40 years of diesel experiece. After reading the info, he was discouraging saying it seems like they are attempting to make it a one size fits all engine and noted that the componets that were mentioned as strengthened were probably found to be weak points.

He mentioned that another large diesel maker abandoned the V-style configuration in the past due to inherent problems. I was not aware of that. I was pretty upbeat about this motor, but now wonder if I need to hope for a Toyota with a CAT. :(
It's a known fact that the Cummins V-8 was a disaster, however, it's funny you mention CAT because they had decent success in their "V" engines:D We built quite a few Motorhomes withthe 3208 CAT and really never had many problems outta them. In fact, they would "scream".

Is it just me or do none of the Press releases not mention a single thing about putting it in anything with 3rd row seating? H2 just wond do it for me, I need a tahoe or suburban and I havent read anything about these happening anywhere.

Enclosed is an article from Automotive Engineering. It contains the most information I've seen to date on the 4.5L Duramax for 1/2 ton pickups.

It has some interesting design features:

Fractured joint main bearing caps
Cylinder heads have exhaust ports to inside of V (shorter distance to turbo)
Intake ports are in top of cyl. head to reduce width

wow, great find!!!!!!!1

310HP, 520TQ...

Not to shabby...:cool:

I just read that write up in SAE this morning. I'm kind of excited. I'm thinking I'll hang on to my ride, but my wife's SUV is do for replacement; she's a diesel fan and I think we'll be in the market for a CCSB 1/2ton or a Tahoe.

Yeah they gotta compete with the new ford f150 diesel!

I really wish they'd start utilizing these motors in the yukons/suburbans.

Can you imagine a Xtreme S-10 w/ one of these puppies in it... woaw :)

Great...Looks like Jim might be having a bad hair day in the picture...:D

Very interesting head design and flow routing...

I would like that in a H2 Hummer

Yeah they gotta compete with the new ford f150 diesel!
It doesn't take much to compete with a ford.

I would like that in a H2 Hummer


I agree wish they put it in the H2

I agree wish they put it in the H2

That's what the original press release stated:
http://dieselplace.com/forum/showthread.php?t=165361


SEMA eNews, Vol. 10, No.26 - Jun 28, 2007
GM'S NEW DIESEL FOR 2009


According to a recent WardsAuto.com article, the Hummer H2 and Chevrolet and GMC light-duty pickups built after 2009 will come available with an all-new 4.5L V8 Duramax turbodiesel. The new powerplant will be produced at General Motors Corp.'s Tonawanda, New York, plant.

According to the article, the 4.5L Duramax is a means of improving the fuel efficiency of some of the automaker's biggest vehicles. The new engine is expected to emit 13% less carbon dioxide than existing gasoline engines. It will also reduce the particulates and oxides of nitrogen emissions by 90% over today's diesel powerplants. Tom Stephens, group vice-president of GM's global powertrain and quality, says that the new diesel "is expected to become a favorite among customers who require excellent towing ability and fuel efficiency." The new Duramax will meet all 2010 emissions standards in the United States and will be 50-state compliant.

The 4.5L will be a DOHC V8 with more than 310 hp and 520 lb.-ft. of torque. It will also be the first GM engine to feature selective catalytic-reduction exhaust aftertreatment and a diesel particulate filter, which will help it meet the new U.S. Tier 2 Bin 5 emissions standards. The powerplant will feature a graphite-iron block, aluminum cylinder heads with integrated manifolds, an intercooled variable-geometry turbocharger and a high-pressure common-rail fuel-injection system capable of five injection events per cycle.

GM officials who were on hand for test drives of the 2008 Hummer H2 and H3 Alpha declined to confirm any details on the aftertreatment technology. However, a urea-injection system will likely be needed to meet future emissions standards, according to the WardsAuto.com article. One of the most interesting features of new Duramax is its ability to be mounted in the same space as GM's small-block V8 lineup. This allows for easier adaptation for a wide variety of vehicles, as the diesel market continues to grow. Could we see this Duramax in any of GM's passenger cars?

Not only will the new Duramax serve to boost the fuel efficiency of vehicles such as the H2, but as WardsAuto.compoints out, it will also help to improve the image of the Hummer brand, which is under constant attack by the environmentalists. The 4.5L Duramax will also be capable of running on some mix of biodiesel, according to Martin Walsh, Hummer General Manager. GM will be investing $100 million in the Tonawanda, New York, plant where the new diesel will be produced. GM will also dispense an additional $41 million for vendor tooling, containers and investment at other locations. Output of the new diesel is slated to get underway in the fourth quarter of 2009, and the project is expected to retain 150 hourly jobs at the plant.

Source: Sutton, Mike. (June 15, 2007). "Hummer H2 to Feature All-New Diesel After 2009." WardsAuto.com. Retrieved June 18, 2007 from www.wardsauto.com (http://www.wardsauto.com/).

DIESEL SUBURBAN!!

GM will we showing a "Suburban HD Z71" (their words not mine) with the 4.5L at the SEMA 2007 show next week:

http://media.gm.com/servlet/GatewayServlet?target=http://image.emerald.gm.com/gmnews/viewpressreldetail.do?domain=12&docid=40563
(read down under "Chevrolet")

Well thats good news, I just bought an 02 Excursion with the 7.3L as i needed something now. I look forward to the pics of the burb at SEMA...

Hopefully I can afford the new subruban when it comes out.

And I thought that this 4.5 L was a V6...interesting.
I could handle a machine like that .. Black ECSB 1500 SLT 4.5L V8 D'max mmmmmm-yea baby (no kids then either..!!).

cheers,

stk

310HP, 520TQ...

Not to shabby...:cool:

Bu notice how all the articles on this engine say "more than 310" or "in excess of 310hp" :D.

I hope I'm wrong but I can not see a 1500 DMax that close to the tail of it's big brother (power wise) I mean stock we're talking LLY/Lb7 horsepower, correct???

I can only IMAGINE the idiots w/ a 1500 towing a house because 'well hell, it can pull it...." LMAO

I hope I'm wrong but I can not see a 1500 DMax that close to the tail of it's big brother (power wise) I mean stock we're talking LLY/Lb7 horsepower, correct???

I can only IMAGINE the idiots w/ a 1500 towing a house because 'well hell, it can pull it...." LMAO

So True..

But, That thing is going to run!!!

So True..

But, That thing is going to run!!!

Oh hell yeah it will, a 1500 chassis some EFILive i have a feeling is going to suprise/madden alot of LBZ/LLY racing guys.

Mike L. needs to get a service manual for that tranny and then we'll be ready to make it like it shoulda came from the dealer lots... :)

Im ready!!! Lets do it!!! :D

How about in a 'Burb?:

http://dieselplace.com/forum/showthread.php?t=165361&page=10

I will buy this truck the second it's available. bet you guys will never guess what comes out first. :D

I will buy this truck the second it's available. bet you guys will never guess what comes out first. :D

floor mats??? :p:

floor mats??? :p:

:funnypost

Damn you robert! I was gonna name my truck Optimus Prime!:D

I will buy this truck the second it's available. bet you guys will never guess what comes out first. :D

Sierra Denali 1500 w/ 4.5L Duramax... or am I just dreaming again?

EDIT...oh you meant what part of the truck will come out, ha I'm an idiot. I did just wake up though. I change my answer to muffler bearings.;)

I am going to guess the driveshaft. LOL

tranny?

tires:D

I will buy this truck the second it's available. bet you guys will never guess what comes out first. :D

dpf??:)

drivers side rear window pop out latch screws.....

I'd sure like to have one of those engines in a '55 Nomad. Twin-turbo'd and with a Mike L transmission of course......

DIESEL SUBURBAN!!

GM will we showing a "Suburban HD Z71" (their words not mine) with the 4.5L at the SEMA 2007 show next week:

http://media.gm.com/servlet/GatewayServlet?target=http://image.emerald.gm.com/gmnews/viewpressreldetail.do?domain=12&docid=40563
(read down under "Chevrolet")


Only problem is that it doesn't have a 7.1L Duramax. It has the 4.5L.

That is all. :D

http://www.blogsmithmedia.com/www.autoblog.com/media/2007/10/suburban_hd_z71_01.jpg

http://www.blogsmithmedia.com/www.autoblog.com/media/2007/10/suburban_hd_z71_02.jpg


http://www.autoblog.com/2007/10/29/sema-2007-chevy-suburban-hd-z71-diesel/

I think I'm about to get a hardon. :drool: That is one sexy sexy piece of equipment. I'm loving those wheels, the marker lights on the rear fender, the mirrors (on that body), the....HEY, what'd they change on the DURAMAX Emblem? It's probably got that big Hydramatic 6-speed (6L80E ???) transmission instead of an Allison, so what's the badge say now?

Ummm looks like the marker lamps off of the Quadrasteer......maybe making a come back in the HD version of things rather than the 1500 crap.

Dang that thing looks good!

Ummm looks like the marker lamps off of the Quadrasteer......maybe making a come back in the HD version of things rather than the 1500 crap.
I don't know, the Quadrasteer didn't have a locking diff, plus it was weaker then the usual axle. I think there is a reason they didn't put it on HDs, it wasn't strong enough.

Only problem is that it doesn't have a 7.1L Duramax. It has the 4.5L.

That is all. :D

http://www.blogsmithmedia.com/www.autoblog.com/media/2007/10/suburban_hd_z71_01.jpg

http://www.blogsmithmedia.com/www.autoblog.com/media/2007/10/suburban_hd_z71_02.jpg


http://www.autoblog.com/2007/10/29/sema-2007-chevy-suburban-hd-z71-diesel/


Holy crap that thing looks SWEET!!! :cool: :drool:

Only problem is that it doesn't have a 7.1L Duramax. It has the 4.5L.

That is all. :D

http://www.blogsmithmedia.com/www.autoblog.com/media/2007/10/suburban_hd_z71_01.jpg

http://www.blogsmithmedia.com/www.autoblog.com/media/2007/10/suburban_hd_z71_02.jpg


http://www.autoblog.com/2007/10/29/sema-2007-chevy-suburban-hd-z71-diesel/

The hero in the next Transformer movie:D It's name: Wildfire
According to..
http://www.cartoonnetwork.com/games/activities/transformers/namegenerator/index.html

I would buy it. :D Mike

It doesn't look like a quadrasteer axle under there, looks more like the AAM 1050. Anyone else wondering what's going on with the cover over the hitch location? And is it me or did they smooth the mirrors out some? Also on the HD Z71 "Big Red" concept the mirrors look different:



http://www.blogsmithmedia.com/www.autoblog.com/media/2007/10/big_red_1.jpg

I think it looks OK, I just want something that will haul the whole family and get decent milage. If it looks something like that when it comes out I will get one.

Dang that thing looks good!


I don't know, the Quadrasteer didn't have a locking diff, plus it was weaker then the usual axle. I think there is a reason they didn't put it on HDs, it wasn't strong enough.
yes they did do it onthe 2500hd............ with the 6.0 and maybe the 8.1? but not the dmax

yes they did do it onthe 2500hd............ with the 6.0 and maybe the 8.1? but not the dmax

They did? Hmm, they told us it wasn't an option down here...

It doesn't look like a quadrasteer axle under there, looks more like the AAM 1050. Anyone else wondering what's going on with the cover over the hitch location? And is it me or did they smooth the mirrors out some? Also on the HD Z71 "Big Red" concept the mirrors look different:

Hitch cover is just that, a hitch cover. Sclades have them as well.

here are two pic from sema of a 4.5 duramax suburban. i should of taken more but i didn't think about it at the time.

What do you think the added demand will do to fuel prices? Lets hope they build more refineries. I am paying $3.18 for no2 right now and I don't like it.

$3.30+ around here.

What do you think the added demand will do to fuel prices? Lets hope they build more refineries. I am paying $3.18 for no2 right now and I don't like it.

$3.30+ around here.

Quitcherbitchin..... 4.61 up here.:mad:

Wow, that suburban looks exactly like the Family Truckster from Vacation. Almost the same pea-green too! All that's missing is the wood paneling down the sides. -:t Geez, those new front ends kill me.


I do like those low-profile cab lights on both trucks though...I'd like to add those to mine. :cool2:

I also got a few pics

http://www.dieselplace.com/forum/attachment.php?attachmentid=48398&d=1194142306
http://www.dieselplace.com/forum/attachment.php?attachmentid=48399&d=1194142306
http://www.dieselplace.com/forum/attachment.php?attachmentid=48400&d=1194142306

anybody look to see what the badge said?

anybody look to see what the badge said?

What badge?

on the hood..thought it might give us a clue as to the tranny..but it looks like it just says duramax 4.5L

Look at the SEMA pics in the last couple posts....thats the same badge as on the hood.

I dunno bout you guys, but why would GM put the 4.5 in a 2500 Burb? Makes more sense to have it in the 1500 Burb, wouldn't it? Makes me wonder....

Makes more hp and torque than a lb7 i thought....??

I dunno bout you guys, but why would GM put the 4.5 in a 2500 Burb? Makes more sense to have it in the 1500 Burb, wouldn't it? Makes me wonder....

Emissions and marketing is my guess. It's easier to pass emissions with a vehicle with a GVWR over 8600 lbs in most states. I know that'll be changing soon, but the limits won't be as tight as below 8600 lbs GVWR. Less add ons to meet emissions, lower cost to consumer :rolleyes:. And they could use it to introduce the engine and the 'new' Suburban HD. Just my opinion, and I've been worng before.:confuzeld

Either way, Build already GM, I NEED ONE BAD!!!!

Hope they heard me.:think:

I also got a few pics

http://www.dieselplace.com/forum/attachment.php?attachmentid=48398&d=1194142306
http://www.dieselplace.com/forum/attachment.php?attachmentid=48399&d=1194142306
http://www.dieselplace.com/forum/attachment.php?attachmentid=48400&d=1194142306

Did anyone get a look at the rear axle? Those clearance lights on the fender indicate at least an 80" rear axle, right? Why would a lighter-engine diesel need the wider track?

Quadrasteer on the concept vehicle?

Oh, diggin the 20" 8-lugs too.

-P.

In some of the pics the front tires are turning but the rear is still perfectly straight. I think it could be a wide axle for better stability when towing and the lights are for a big truck look.

I cant wait for the new d-max.I will be one of the first to order.:)

Pictures look nice!

I cant wait for the new d-max.I will be one of the first to order.:)

Ima beat you to it!

Quitcherbitchin..... 4.61 up here.:mad:
Holy cow. THAT's PAINFUL.

Unless its an HD, it shouldnt have a diesel in it. :D I love my 6.6 but it would take a miracle for me to buy a smaller engine!

Unless its an HD, it shouldnt have a diesel in it. :D I love my 6.6 but it would take a miracle for me to buy a smaller engine!

I couldn't disagree more. I'd like to have a diesel in everything I drive and I have no need or desire to own a HD truck. I'm one/third there:p:. I drive a Jetta TDI and am anxiously awaiting the 4.5 to become available to replace my gas truck. Also I am dreaming about the rumors that VW and Chrysler are making plans to make their vans available in the states with a diesel:D

with the 4.5 making that power that was suggested, should the 6.6 hp and tq numbers increase as well? i would imagine so but just wondering if anyone has any info on it. thanks

by the time the 4.5 is out there might not be a 6.6 being made :D

454 Dmax:rolleyes:

I'll likely be replacing my 6.5L with a 4.5L quad cab and the mini box!

with the 4.5 making that power that was suggested, should the 6.6 hp and tq numbers increase as well? i would imagine so but just wondering if anyone has any info on it. thanks

Talking to the techs at the stealer. He says that an engine half the size of the dmax (3.3l) can be made to make the same power. Which makes sense The only reason they make them so big, "is that we as Americans like everything bigger, better, faster."

And I would really like to see it reach over 400 out the line, in the next 6 years.

And I would really like to see it reach over 400 out the line, in the next 6 years.

We can do that now; just turn your tuner up a level! :D

What i meant, out the line is out the manufacturing line;)

What i meant, out the line is out the manufacturing line;)

I know, but I couldn't resist! :D

hehe rock on !:ro)

Sounds like a good motor to me! That thing will move in a 1/2 ton!

Sounds like a good motor to me! That thing will move in a 1/2 ton!

Whoa... niiiiicccccccce avatar. Me likey. problemchild you better step it up in the avatar dept.

Im glad quadra-steer is coming back. That was a great option.

Its coming back????

Im glad quadra-steer is coming back. That was a great option.

That's how rumors get started. I wish it was!!!!

Im glad quadra-steer is coming back. That was a great option.

Who said it was coming back??

Im glad quadra-steer is coming back. That was a great option.


He did^

:confuzeld

Yeah, I read it on duramaxdiesel.com. Somebody had something that looked like a GM build code sheet. Said that all the bugs had been worked out and a renewed contract was in the works. It even said something about a version for duallies.

I'll believe it when I see it.

I'll believe it when I see it.

:exactly:

if it did come back i would then have to start look at new trucks agian

Yeah, I wish I had quadra-steer. I really hope they do bring it back. It was just ahead of its time.

I'll believe it when I see it.

X2

dually quadrasteer????? Yeah right. :(

imagine the scrub radius, trying to turn dual rear wheels...!

Talking to the techs at the stealer. He says that an engine half the size of the dmax (3.3l) can be made to make the same power. Which makes sense The only reason they make them so big, "is that we as Americans like everything bigger, better, faster."


Not buying it. I'd believe you could get the power as stated, but don't believe it'd be reliable enough for mass production.
Ford (pronounced TURD), and Dodge both had to increase the displacement of their new gen diesels just to maintain the same power level as their prior, more emissions-producing predecessors

yes they did do it onthe 2500hd............ with the 6.0 and maybe the 8.1? but not the dmax

Actually GM did build 3500s with Quadrasteer an a dmax, but they only sold a few, to the Army...

Actually GM did build 3500s with Quadrasteer an a dmax, but they only sold a few, to the Army...

and they were IRS too...


or am I thinking of something else?

Something else, they did have a CVT and an APU though,,,,

and they were IRS too...


or am I thinking of something else?

Really; I'd love to get one of those!

Told ya.

weird i was at sema did not see it

cant wait to get one and take all that plastic sh!t off!

Doubt its gonna have as much plastic, guessing they didnt want ppl seeing what was underneath

I may have missed it but anyone know what the estimated weight of this thing is going to be? I'm thinking it may be kinda cool to put one in my Cruiser and run biodiesel.

Kevin

I am glad I purchased my H1 Alpha when I did. What a great combo, the Duramax and Allison. Perfect together!

I am glad I purchased my H1 Alpha when I did. What a great combo, the Duramax and Allison. Perfect together!

Shame they quit making it...

I am glad I purchased my H1 Alpha when I did. What a great combo, the Duramax and Allison. Perfect together!

H1 with a Dmax..... now thats a cool ride:cool:

Shame they quit making it...
they still make it... just the plant is 100% millitary surplus now...

they still make it... just the plant is 100% millitary surplus now...

I meant the H1 Alphas;)

I meant the H1 Alphas;)
it the same basice chassis.....;)

it the same basice chassis.....;)

same basic chassis but not the same thing...;)