Here I am

GM Boost Power on Duramax (Automotive News Press Release)

Attention: TDR Forum Junkies
To the point: Click this link and check out the Front Page News story(ies) where we are tracking the introduction of the 2025 Ram HD trucks.

Thanks, TDR Staff

Fuel heaters

Cummins '600'!!!!

Status
Not open for further replies.

dkosheba

TDR MEMBER
GM boosts power on Duramax V-8





By Richard Truett

Automotive News / December 05, 2003



DETROIT – The diesel engine horsepower race gained speed Friday with General Motors announcing a power increase for its hot-selling 6. 6-liter Duramax V-8.



GM says that starting in January, the diesel engine, which is optional in heavy-duty models of the Chevrolet Silverado and GMC Sierra, will make 310 hp and 590 pounds-feet of torque. That’s an increase of 10 hp and 70 pounds-feet of torque, compared to its current version of that engine.



The move comes just days after Dodge announced a new high-performance version of its Cummins turbodiesel, which makes 600 pounds-feet of torque and 325 hp. That engine is optional in the Ram heavy-duty pickup.



Ford Motor Co. ’s 6. 0-liter Power Stroke V-8 available in F-250 and bigger trucks and the Excursion SUV, is rated at 325 hp and 560 pounds-feet of torque.



GM, Ford and DaimlerChrysler have been slugging it out for the title of most powerful diesel truck engine for more than two years. All three automakers recently have replaced their diesel engines with new models and have boosted horsepower or torque — which increases a vehicle’s towing capacity — numerous times.



All three automakers’ diesel trucks sell at near sticker price and are highly profitable. The diesel-powered trucks typically are bought by consumers who use them to pull heavy loads and drive tens of thousands of miles per year.



GM also says the re-tuned Duramax will run cleaner. The engine, developed with Isuzu Motors, features a new turbocharger, updated fuel injectors and a revamped engine computer. GM and Isuzu engineers also installed an electronically controlled exhaust gas recirculation valve, which helps cut emissions.



Tom Stephens, GM’s vice president of global powertrains, said the automaker is weighing a decision to boost production of the Duramax engine from its current level of about 150,000 per year. Stephens would not specify a number. A decision is not expected until at least next year, he said. GM is expected to sell out of Duramax diesels this year.



Don



If they plan to sell out, I guess we should not waste our time to test drive one. Hope my Cummings gets here soon!
 
Ok Ford time to make up some numbers, or I mean have a press release with new found torque and horsepower ratings. :D



Let's see 326hp and 601trq: Yeah that should work. Hee Hee. .
 
Originally posted by dkosheba

GM boosts power on Duramax V-8



GM and Isuzu engineers also installed an electronically controlled exhaust gas recirculation valve, which helps cut emissions.







So GM haas EGR now huh? Did anyone else catch that? :p
 
None of the press releases I've seen on the CTD 600 mentions whether it has EGR or not. Typical press release, all upbeat info, no downside mentions.
 
Hello,



I heard on another website, that Ford is to come out with 350 HP, and 620 foot pounds of torque. I think that they need to get the buggs worked out of the trucks, before planning to increase their power.



But, we as the consumer are the ones who benefit!



Happy Holidays to all!



Mark
 
Originally posted by dkosheba



The move comes just days after Dodge announced a new high-performance version of its Cummins turbodiesel, which makes 600 pounds-feet of torque and 325 hp. That engine is optional in the Ram heavy-duty pickup.








did anybody catch this?
 
Last edited:
Originally posted by RankRam

Ok Ford time to make up some numbers, or I mean have a press release with new found torque and horsepower ratings. :D



Let's see 326hp and 601trq: Yeah that should work. Hee Hee. .



EXACTLY! I was thinking the same thing. I think dynos are more important now than they ever were, as the OEM's seem to have found they can make up any numbers they want and the unwashed "sheep" (us, in their opinion) agree blindly and believe what they say. After all, some PR-type sitting at a computer writing this crapola up is much cheaper than actually making engineering changes on the engines.



Once again Ford and GM, where are those press releases touting all your "improvements" that increase your HP and torque over the new Cummins (I'm sorry to say I even wonder about our own beloved company's claims for the 2004. 5)?



:D
 
Re: Re: GM Boost Power on Duramax (Automotive News Press Release)

Originally posted by JHardwick

did anybody catch this?



Yes, the 5. 7 hemi is standard. The CTD is the only option. Keep hearing rumors about a 6. 1 hemi to replace the V10. From 5. 7 to 6. 1 is only about a 7% increase in displacement. Doesn't seem like enough bigger to make a diffference.



I was NOT impressed with the power, or lack thereof of my hemi 1500. Can't imagine how a hemi dually would run!
 
Motorhead, I'm down south of you in the Tampa Bay area. There are quite a few Hemi powered duallies and 2500s running around here as work trucks. My favorite is a 2500 reg cab SLT black with 5spd standard transmission and Hemi. It really is "sweet"! Just to hear him roll through the gears makes my window roll down.

On our last trip out with our 5th wheel, I was in front of another 2500 towing his 5th wheel down a busy six lane road. I purposely drove slow so he'd catch up and I could see what he had. I was looking for a stick on the floor of column. It was automatic and a Hemi. He was pulling a Carriage Cameo 5th wheel of about the same size as my Jayco but not smaller. When he left the lights, he accelerated with no difficulty at all. His Michigan tags would suggest that he made it accross the blue ridge mountains. He probably does fine with the exception of fuel mileage. My two co-workers sure like their Hemi's. I've only rode in one a few times and his will pin your ears back. I'll keep my Cummins but I can't knock their trucks a bit. :D
 
Ha, ford needs to get the engine they have now running right before they add any more hp or torque Oo. :D Oo. :D Oo. :D Oo. :D
 
Originally posted by Steve M

Motorhead, I'm down south of you in the Tampa Bay area. There are quite a few Hemi powered duallies and 2500s running around here as work trucks. My favorite is a 2500 reg cab SLT black with 5spd standard transmission and Hemi. It really is "sweet"! Just to hear him roll through the gears makes my window roll down.

On our last trip out with our 5th wheel, I was in front of another 2500 towing his 5th wheel down a busy six lane road. I purposely drove slow so he'd catch up and I could see what he had. I was looking for a stick on the floor of column. It was automatic and a Hemi. He was pulling a Carriage Cameo 5th wheel of about the same size as my Jayco but not smaller. When he left the lights, he accelerated with no difficulty at all. His Michigan tags would suggest that he made it accross the blue ridge mountains. He probably does fine with the exception of fuel mileage. My two co-workers sure like their Hemi's. I've only rode in one a few times and his will pin your ears back. I'll keep my Cummins but I can't knock their trucks a bit. :D



Hey Steve, the last time I looked at a Florida map, the Keys was south of you, not vice versa. Big Pine is 29 miles from Key West.



I suspect there are a bunch of work truck 2500 & 3500s with the hemi. It's the standard engine & unless you pull, why spend the extra $5500+ for the CTD, especially for a company that turns their trucks over every few years. My complaint with the hemi is the peak torque of 375 is at, I believe, 4500 rpm. So, you have to wind the crap out of it to get it to pull. That sucks the gas. My 1500 has only the 26 gallon gas tank, so, at 9 mpg pulling my bike trailer, loaded, fuel stops are more frequent than what I want. Also, perspective of what is "fast" is relative. One of my other toys was a Vortech supercharged 351 cid '88 Mustang. It would smoke the 265/55/16s anywhere in the first three gears and still get 22+ mpg. That car would pin your ears back! I don't think my hemi 1500 is fast. You might. JOIBO!
 
Last edited:
Originally posted by Moterhead

None of the press releases I've seen on the CTD 600 mentions whether it has EGR or not. Typical press release, all upbeat info, no downside mentions.



According to DC customer service: No EGR and no post combustion treatment; no cat.
 
Originally posted by DLeno

According to DC customer service: No EGR and no post combustion treatment; no cat.



i'll believe that when i see it for myself or someone here who get's to see one posts about it. anything that is posted by DC customer service is something to be taken very lightly in value
 
roger that. the muffler itself might be a Fleetguard post combustion treetment! I hope the next TDR issue addresses this
 
Status
Not open for further replies.
Back
Top