More Proof for 6.7L cummins

[Dieselram]

direct from www.everytime.cummins.com

"The entire Cummins MidRange line will continue to use High Pressure Common Rail fuel systems - enhanced for 2007 with higher injection pressures to optimize fuel economy and increase performance. All engines will use the patented sliding-nozzle Variable Geometry Turbocharger (VG Turbo), which doubles as an exhaust brake with increased braking power in 2007. Also new in 2007, the VG Turbo features a new electric actuator with faster response and improved precision in adjusting airflow to the engine.



The ISB for 2007 will see displacement increase from 5. 9 L to 6. 7 L, providing more horsepower, more torque and, more importantly, more performance for customers. Enhanced electronic engine controls will increase the number of injection events per combustion cycle, so the ISB will continue its position as the fuel economy leader with the lowest total cost of ownership in its class. An automatic Oil Level Sensor option eliminates the need for daily oil level checks. And, a new 18-quart oil pan option allows for standard oil drain intervals to be increased to 20,000 miles (32,000 km).



The ISL, ISC and ISB all share an enhanced ECM with greater speed, memory and flexibility. The ISL and ISC both offer an optional compression brake.



Enhanced top horsepower/torque ratings for 2007 include: ISL 365/1250 (272 kW/1695 N•m); ISC 330/1000 (246 kW/1356 N•m); ISB 325/750 (242 kW/1117 N•m). "

 

[TWilkening]

Just because they make an ISB with those numbers, it does not mean that it will neccesarily be that powerful in the pickups. Although it would definitely be sweet! Might be a little hard of transmissions though.

 

[Coolslice]

I was told by an engineer working on the new engine that the enigine for the Dodge trucks will no longer be known as the ISB. He may just be yanking my chain, but it's something to think about... From what I gather, the new engine for DC is still in testing so I seriously doubt the numbers Cummins has put out will be the same as what ends up in the Dodge. .



I'm just guessing here, but I think it will have more HP and less TQ. I'd think Dodge wants to beat GM. I'd guess 370/680 or somewhere there abouts.

 

[Cattletrkr]

This is getting insane. I already tow way more than any 5500 will be rated for, so I guess I shouldn't care. But, holy crap!!!!!!! There's no way any of the big three can make a pickup to drive like a pickup and withstand those numbers. I guess that's what service bills are for.



WTH am I talking about, I've already got more power than that and haven't breaked anything... ... ... ... ... ... ... ... . yet. Just what I need is more STOCK power...

 

[FATCAT]

From the story on the Cummins site:



"The ISB for 2007 will see displacement increase from 5. 9 L to 6. 7 L, providing more horsepower, more torque and, more importantly, more performance for customers. Enhanced electronic engine controls will increase the number of injection events per combustion cycle, so the ISB will continue its position as the fuel economy leader with the lowest total cost of ownership in its class. An automatic Oil Level Sensor option eliminates the need for daily oil level checks. And, a new 18-quart oil pan option allows for standard oil drain intervals to be increased to 20,000 miles (32,000 km).



The ISL, ISC and ISB all share an enhanced ECM with greater speed, memory and flexibility. The ISL and ISC both offer an optional compression brake.



Enhanced top horsepower/torque ratings for 2007 include: ISL 365/1250 (272 kW/1695 N•m); ISC 330/1000 (246 kW/1356 N•m); ISB 325/750 (242 kW/1117 N•m). "

 

[Spooled-up]

If I read that right, we can get a real jake brake!?



We'll have to add it ourselves I bet.

 

[Grizzly]

Does anyone know what this engine will weigh? The increase in engine weight will have an effect on the GVWR unless that rating is increased. Also how much more will this engine cost?

 

[JFaulkner]

You can't go off of ratings on the cummins site. If you notice there is a special site for "Dodge Ram". The engines you are referencing are for Med. duty. (as tough as you like to think your truck is, it isn't "medium duty")

 

[KCJackson]

If I read that right, we can get a real jake brake!?



We'll have to add it ourselves I bet.

Keep in mind, Cummins has only released the info on the medium-duty spec 6. 7, not the Dodge Ram spec. The current 5. 9 ISBe can be had with front or rear geartrain... medium duty trucks usually have rear, the Ram has front. Dodge also has a higher redline than the medium spec.



The listed 6. 7 rating of 325/750 indicates a pretty steep fall off of torque - from 750 lb-ft to 632 at the hp peak of 2700, a drop of 15. 7%. The Dodge-spec engine has a MUCH flatter torque curve (currently going from 610 to 589 at the hp peak of 2900, a loss of just 3. 5%). I say look for a Dodge-spec 6. 7 rating of 365/675, with the ability to increase to 700 based on the competition. The 4500/5500 Rams may be over 700 from the intro solely because they have the frame to handle higher loads that would require the additional torque, but there's a legitimate liability concern with putting that much twist in a 2500.

 

[jrobinson2]

If I read that right, we can get a real jake brake!?



We'll have to add it ourselves I bet.

From above,

"The ISL and ISC both offer an optional compression brake. "

No mention of the ISB

 

[HoleshotHolset]

"The ISL and ISC both offer an optional compression brake. "



Wait a minute - does this mark the first time the C-series has had a compression brake? I think it might be...



Matt

 

[MMeier]

You can't go off of ratings on the cummins site. If you notice there is a special site for "Dodge Ram". The engines you are referencing are for Med. duty. (as tough as you like to think your truck is, it isn't "medium duty")

True, the truck is not. . but the engines have always been, read your engine data plate!!

 

[hammersley]

Trust me - the new

emissions will NOT be a ++++++++++++ - there is no free lunch here in this new engine IMO..... If it weren't for the EPA Regs this wouldn't be happening... . in fact I doubt that you would have seen common rail...

 

[Cattletrkr]

... . in fact I doubt that you would have seen common rail...

Or VP44's for that matter. Just a go-between motor, but a good one.

 

[NIsaacs]

It looks like with the VG-turbo, it will have a built in exhaust brake





"NICK"

 

[Ol'TrailDog]

Another interesting statement on the Allpar link was:



"while the NV5600 six-speed manual transmission" Plus, something about a six speed auto too.



Sure be nice if the NV5600 went back into production.

 

[Spooled-up]

I'm thinking that because of the extra weight of the new engine that we'll only see the 6. 7 in the 45/5500 and not the 25/3500's. With the reduced weights already with the megacab, they can't afford to reduce it further with a heavier engine with more emissions weight added to it. Just a guess.

 

[KCJackson]

It's just a stroked 5. 9... not like it will gain 200 pounds. The weight gain will be from emissions equipment, and that would be there regardless of engine.

 

[RustyJC]

Well, there might be some slight weight gain if they raise the deck height of the block to accommodate the stroke increase.



Rusty

 

[Scrappy]

I'm thinking that because of the extra weight of the new engine that we'll only see the 6. 7 in the 45/5500 and not the 25/3500's. With the reduced weights already with the megacab, they can't afford to reduce it further with a heavier engine with more emissions weight added to it. Just a guess.

ALL Dodges will get the 6. 7, Cummins is stopping production of the 5. 9 in favor of the 6. 7. do not go on the ag/industrial engine weight because it is a structural block. there will also be a non-structural block for the Dodges and other trucks. The 5. 9 in the Ag/industrial applications is the same way.