Attention: TDR Forum Junkies 
http://www.car-truck.com/chryed/buzz/b042302.htm
I've heard from several Buzz Patrollers who've recently had close encounters with the new 3/4 and 1 ton Dodge Ram trucks. Dodge is currently wrapping up their testing cycles on the new trucks so several groups of engineers are tooling around the west in convoys of test trucks pulling various loads etc.
Several of my Ace Buzz Patrollers have encountered these trucks at gas stations (etc. ). Every one of them has reported being amazed at how quiet the new Cummins diesel is. "It sounded just like a regular (gas) engine" reports Gary P. "If I didn't see the Cummins badge and the bigger pipe I'd have sworn it was a (gas) V8!" adds Mark L.
The only complaint I've heard over the years about the super tough and powerful current Cummins ISB engine is that it is too loud (especially when its cold). The new engine seems to solve that while adding even more power and superior emissions control. About this time last year I told you about a patent that Cummins had received on a new block design, The description of the patent goes a long way to explain how Cummins engineers got rid of the noise (click here for the details).
Aside from the block design, the engines new high-pressure, common rail fuel-injection system utilizes pilot injection - the injection of a small amount of fuel that starts combustion before the main, power-producing, fuel charge is injected. This has the effect of smoothing out combustion pressure in the cylinder, which can be the primary source of low- and mid-range speed noise in diesel engines.
A gear-driven injection pump delivers fuel to the rail and is electronically controlled to optimize fuel pressure at the individual injectors. The system provides injection pressures up to 23,200 psi (1600 Bar) and is less dependent on engine speed than traditional pump-line injection system. The result is cleaner combustion and higher low-speed torque with better vehicle response and acceleration.
In addition to the use of pilot injection to smooth combustion pressure, the fuel-injection calibration - timing, pressure and quantity- has been refined across the entire range of speeds and loads to ensure smooth, quiet combustion. The use of pilot injection during starting also provides gasoline engine-like cold starting capability (verified at -40 F).
The all-new high pressure common rail turbo diesel delivers 555 lb. -ft. of torque at 1,400 rpm and 305 horsepower at 2,900 rpm. According to Dodge the new 5. 9-liter HO Cummins Turbo Diesel is the most powerful turbo diesel engine available in the 3/4 1 ton market. The new diesel also delivers a class-leading trailer towing rating of 23,000 lbs. GCWR (Gross Combined Weight Rating).
It will definitely be a key ingredient in the Ram 2500/3500's success considering that nearly 75 percent of Ram 2500/3500s sold today are equipped with the current diesel engine. "Dodge Cummins owners are very exacting in what they want," said Dennis Hurst, Executive Director, Cummins Engineering. "Simply put, they want the strongest and most durable product available and they will not be disappointed with this engine. We have delivered the most powerful diesel available in this class, while improving the drivability, durability and fuel efficiency. This new engine is also much quieter than its predecessor, but still retains the diesel power, torque and toughness that our customers demand. "
The new 5. 9-liter Cummins Turbo Diesel is so tough it is certified to a longer engine life compared to the diesels offered by its competitors from Chevrolet and Ford. The new engine has an average major overhaul interval of 350,000 miles. Not only is the High Output Cummins Turbo Diesel the most powerful diesel engine available in a full-size pickup, it is also one of the most drivable throughout all operating ranges. Maximum torque for the common rail injected Cummins Turbo Diesel occurs 400 rpm lower than the GM Duramax, and 100 rpm lower than the Ford Power Stroke.
The new engine also produces 20 percent more torque at 1000 rpm, and 10 percent higher clutch engagement torque than its predecessor. That relates to noticeably better vehicle launch when towing and accelerating, better drivability and fewer and smoother shifts.
I've heard from several Buzz Patrollers who've recently had close encounters with the new 3/4 and 1 ton Dodge Ram trucks. Dodge is currently wrapping up their testing cycles on the new trucks so several groups of engineers are tooling around the west in convoys of test trucks pulling various loads etc.
Several of my Ace Buzz Patrollers have encountered these trucks at gas stations (etc. ). Every one of them has reported being amazed at how quiet the new Cummins diesel is. "It sounded just like a regular (gas) engine" reports Gary P. "If I didn't see the Cummins badge and the bigger pipe I'd have sworn it was a (gas) V8!" adds Mark L.
The only complaint I've heard over the years about the super tough and powerful current Cummins ISB engine is that it is too loud (especially when its cold). The new engine seems to solve that while adding even more power and superior emissions control. About this time last year I told you about a patent that Cummins had received on a new block design, The description of the patent goes a long way to explain how Cummins engineers got rid of the noise (click here for the details).
Aside from the block design, the engines new high-pressure, common rail fuel-injection system utilizes pilot injection - the injection of a small amount of fuel that starts combustion before the main, power-producing, fuel charge is injected. This has the effect of smoothing out combustion pressure in the cylinder, which can be the primary source of low- and mid-range speed noise in diesel engines.
A gear-driven injection pump delivers fuel to the rail and is electronically controlled to optimize fuel pressure at the individual injectors. The system provides injection pressures up to 23,200 psi (1600 Bar) and is less dependent on engine speed than traditional pump-line injection system. The result is cleaner combustion and higher low-speed torque with better vehicle response and acceleration.
In addition to the use of pilot injection to smooth combustion pressure, the fuel-injection calibration - timing, pressure and quantity- has been refined across the entire range of speeds and loads to ensure smooth, quiet combustion. The use of pilot injection during starting also provides gasoline engine-like cold starting capability (verified at -40 F).
The all-new high pressure common rail turbo diesel delivers 555 lb. -ft. of torque at 1,400 rpm and 305 horsepower at 2,900 rpm. According to Dodge the new 5. 9-liter HO Cummins Turbo Diesel is the most powerful turbo diesel engine available in the 3/4 1 ton market. The new diesel also delivers a class-leading trailer towing rating of 23,000 lbs. GCWR (Gross Combined Weight Rating).
It will definitely be a key ingredient in the Ram 2500/3500's success considering that nearly 75 percent of Ram 2500/3500s sold today are equipped with the current diesel engine. "Dodge Cummins owners are very exacting in what they want," said Dennis Hurst, Executive Director, Cummins Engineering. "Simply put, they want the strongest and most durable product available and they will not be disappointed with this engine. We have delivered the most powerful diesel available in this class, while improving the drivability, durability and fuel efficiency. This new engine is also much quieter than its predecessor, but still retains the diesel power, torque and toughness that our customers demand. "
The new 5. 9-liter Cummins Turbo Diesel is so tough it is certified to a longer engine life compared to the diesels offered by its competitors from Chevrolet and Ford. The new engine has an average major overhaul interval of 350,000 miles. Not only is the High Output Cummins Turbo Diesel the most powerful diesel engine available in a full-size pickup, it is also one of the most drivable throughout all operating ranges. Maximum torque for the common rail injected Cummins Turbo Diesel occurs 400 rpm lower than the GM Duramax, and 100 rpm lower than the Ford Power Stroke.
The new engine also produces 20 percent more torque at 1000 rpm, and 10 percent higher clutch engagement torque than its predecessor. That relates to noticeably better vehicle launch when towing and accelerating, better drivability and fewer and smoother shifts.
If that makes me a dinosaur then just call me crocodylian cause it's lasted thru the ages
on any of our trucks will beat the HP and Torque numbers that the new engine is claiming. God help us when/if they change to the EGR design. Talked with a Cummins guy at their last open house and he said that it has not yet been determined if they will ever have to go to EGR in the Dodge PU. But if they do you can count on them claiming it is the greatest thing that has ever happened to our engines (Marketing Hype)
