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View Full Version : 6.7 Cummins 350hp 650Ft/lbs


CoastalDav
09-10-2006, 10:55 AM
Dodge has a press release that indicates the 6.7 will have 350hp and 650 ft/lbs of torque available 1 Jan 07 in the 2500 and 3500 trucks. 750 ft/lbs in the not yet released medium duty trucks.

For more info and links to other threads that have the new transmissions and other goodies (six speed autos) see my post in the Rumors section of this form titled 6.7 Cummins, Its a reality. http://towrig.com/forums/showthread.php?t=1668&page=3

Dave

RJF's Red Cummins
09-10-2006, 12:39 PM
Still, the 6.7 makes me sick to my stomach thinking of all the smog stuff on the thing. I buy used truck, maybe 2-4 years old with roughly 100K of freeway miles. Does this mean I get to replace the stupid particulate filter that costs thousands? The 6.7 has a water cooled turbo, no thanks.

I think my next truck is going to be a 2006-2007.0 Mega Cab 610 5.9... and I bet the demand and price will be high for them too...

CoastalDav
09-10-2006, 01:52 PM
I agree, I think a better choice will be a late model 5.9 in the shape of your choice. If only a crew cab long box would show up. I could change my mind. I'm about 2 years away from either a new truck or a used truck and I'll need a crew cab dually to haul my fiver. I have trips planned and will need the extra room for adult family members.

Dave

DMAXRIG
09-10-2006, 09:27 PM
Ive read that the 350/650 will only be offered behind the 6 speed auto transmission, and that it will be 305/610 behind the 6 speed manual.:doah:Agree with ya on the Smog crap RJF, the last truck I'll probably ever buy will be an 06 or early 07 Diesel pickup, hate this emmissions crap!!!!

rocknbronco
09-16-2006, 10:43 AM
pretty much sounds like what ford is toutin with the 6.4 350/650

DMAXRIG
10-02-2006, 04:41 PM
http://i14.ebayimg.com/04/i/08/7d/74/06_3.JPG (http://cgi.ebay.com/ebaymotors/Dodge-Ram-3500-07-DODGE-3500-CUMMINS-DUALLY-4WD-CHASSIS-SIX-SPEED_W0QQcmdZViewItemQQcategoryZ119144QQihZ009QQi temZ190036688052QQrdZ1#ebayphotohosting)
This scares me, look at all that crap on there. The Cummins use to be the one with all the room under the hood. Now, they're all stuffed under the hood.

budkole
10-09-2006, 09:39 PM
the good ole days when trucks had real engines are long gone....what a shame:doah:

coloradok5
10-12-2006, 10:19 AM
Some more info: http://towrig.com/forums/showthread.php?t=2788

duckmanquacker
10-19-2006, 08:10 PM
http://i14.ebayimg.com/04/i/08/7d/74/06_3.JPG (http://cgi.ebay.com/ebaymotors/Dodge-Ram-3500-07-DODGE-3500-CUMMINS-DUALLY-4WD-CHASSIS-SIX-SPEED_W0QQcmdZViewItemQQcategoryZ119144QQihZ009QQi temZ190036688052QQrdZ1#ebayphotohosting)
This scares me, look at all that crap on there. The Cummins use to be the one with all the room under the hood. Now, they're all stuffed under the hood.

yeah but I bet it still pulls like a maddog:stir:waytogo

Dieseldees
10-20-2006, 12:48 AM
yeah but I bet it still pulls like a maddog:stir:waytogo

Yeah, and will demolish any building's foundation.

cm cows
10-20-2006, 02:17 PM
wow i didnt know there was so much crap on those motors! on that emision stuff its probally illegal to cut that partical collector out? or is it like the oxygen sencer like on the gas motors on gmc's. i wish that the companies would leave the motors alone and just turn them up and not put all curciut board stuff on there. just wanted to rant.

strai8up
10-22-2006, 06:27 PM
No Thanks, I'll Pass

jeremy89chevy
11-02-2006, 11:21 AM
i wonder how that autos gona hold up? will it be like the the ones in the past? or will it be better?

4054x4
11-14-2006, 02:24 PM
They had better be stronger now because if not (with the extra power from factory) they will loose a lot of money on warrenty replacements.:rolleyes:

zippy
11-17-2006, 11:42 PM
that are putting that aisin 6 spd auto in the thing thats supposed to be comparable to the allison. but we'll see about that.

wasted wages
12-28-2006, 02:45 PM
Wow,,Makes me glad I got the "early" 2007 with the 5.9 and 6 speed ....

5.9 + 6 speed manual = tried and true....
6.7 + 6 speed auto = too many unknowns...

2007CUMMINZ
12-31-2006, 08:34 AM
My guess is that the 350 HP being introduced this month will be tuned higher and closer to 375-390HP by 2008 models. The 350 is even now lower than the Durapuke at 365 and the new 6.4L Ferd will push that. DC I don't think will lag behind very long. 2008 model is the time to buy.:stir:

rocknbronco
12-31-2006, 10:23 AM
that are putting that aisin 6 spd auto in the thing thats supposed to be comparable to the allison. but we'll see about that.
Aisin has made stout trannys in the past I do belive it will be a great move for Dodge in the long run.

Bourdon1350
01-24-2007, 11:03 PM
My guess is that the 350 HP being introduced this month will be tuned higher and closer to 375-390HP by 2008 models. The 350 is even now lower than the Durapuke at 365 and the new 6.2L Ferd will push that. DC I don't think will lag behind very long. 2008 model is the time to buy.:stir:

actually its 6.4l ford, and i bet it will the other two a run for the money!

2007CUMMINZ
01-27-2007, 09:40 AM
A friend of mine just got laid off notice from the Freightliner big truck plant in Cleveland, NC. 1200-1500 laid off due to poor sales. They are introducing a new P3 model that is cheaper truck to offset the higher cost of engine. Go figure. They have acres of trucks just sitting around in neighborhood lots.:confused:

rocknbronco
01-28-2007, 09:01 AM
Thats figures our economy is in a slump and we are only going to head deeper in the next four to five years depending on whos economic stratagy we follow or belive.I know my friend in Dayton,Tn is in a slump at Lay Z Boy due to some wanting to go Union and a friend in Pascagulla,Miss is gonna have a strike in March over in the shipyards I would just work and make some money if I were both of them of course I have been lean on money myself here lately so maybe thats just my veiw.

whiterocket5.9
02-06-2007, 05:34 PM
i hear ya housing market sucks rite now too. were laid off but i was ready for that i hate workin during the winter. well hit it again in march sometime.

rocknbronco
02-06-2007, 05:36 PM
Yeah I ma glad I found a job locally that a pays what I was looking to go out of town for.

whiterocket5.9
02-19-2007, 09:35 PM
took my truck into the dealership today, they have no new 6.7's as of yet i wsa talking to one of the mechanics there he said he hasnt even seen one in person yet...no training yet and the way he was talkin he wasnt planning on seeing them any time in the near future...it was almost liek i knew more about it than he did....thats a good thing ..i think lol

gsbrockman
06-06-2007, 02:35 PM
Wow,,Makes me glad I got the "early" 2007 with the 5.9 and 6 speed ....

5.9 + 6 speed manual = tried and true....
6.7 + 6 speed auto = too many unknowns...

Read this link :

http://www.dieseltruckresource.com/dev/showthread.php?t=154114

Greg

rocknbronco
06-06-2007, 04:34 PM
took my truck into the dealership today, they have no new 6.7's as of yet i wsa talking to one of the mechanics there he said he hasnt even seen one in person yet...no training yet and the way he was talkin he wasnt planning on seeing them any time in the near future...it was almost liek i knew more about it than he did....thats a good thing ..i think lol
You may very well have know I know abit more on certain subjects that my friends whom works at dealerships..:doah:

John T Lippold
08-29-2007, 12:33 PM
Hey guy's,
I do agree about adding all that crap on the 6.7,but here is the caviot to that,Have any of you looked ubder the hood of a late model ford or chevy V8 deisel :doah:.I worked @ a dodge dealer as a truck technician for a while and worked on plenty 98' 5.9 with egr.Really no big deal.I just purchased a 07.5-6.7-6 speed g-56.And can say with that the truck is awsome.One thing to remember the auto's will have some slip through the torque converter.Lets face the fact that the torque converter is a viscous coupler.That is maybe why the output numbers are different:stir: .I have pulled my 24' travel trailer with all the trimmings,dog,fam,bikes,boat and all the rest of stuff.I did rough calculation and came up with about 15.5k rolling down the road.I pulled some real good grades in the california sierras in sixth gear a/c cranked,2,000 rpm passing people like they were tied to a tree,and getting 15.9mpg.I know there guys that pull a lot more and like there 5.9's.That being said theres my 25 cents worth,

See yah on the flip side
JOHN T. LIPPOLD
AKA 6.7HVN

cm cows
08-29-2007, 09:06 PM
this has probaly been asked before but what can that egr and stuff be takin off or will it absolutly screw up the computer and stuff

John T Lippold
08-30-2007, 11:53 AM
HEY GUYS,
No ! do not remove any thing,and this is the reason why.The egr has a paramount function.It reintroduces unburned fuel into the cylinders,therefore it lowers cylinder temperature and the result is lower EGT's.All of the fuel mapping created in the software is built around all related sensors working at specified criteria IE..load,rpm,throttle position etc.The real reason for this is to also reburn all excess fuel so that when it hits the cat,the cat and soot burner can work @ optimum efficiency for long term cat and soot burner life.One last thing, the computer is looking for and egr opening at specified times,Therfore if it does not see egr open it will turn your MIL:stir: .It also reduces Nox in the cylinders.Nox is the true indicater of cylinder temperature.The higher the NOX the higher the cylinder temp.and inversely the opposite.
10-4 good buddy
John T Lippold
AKA-6.7hvn

2007CUMMINZ
09-01-2007, 03:27 PM
I have been getting 9-11mpg when towing and maybe 13 on the road. I have problems with my overhead with service engine message. Since replacing overhead and doing most recent flash for DPF/performance (rev.B) my overhead is much more active and while on the road yesterday the overhead would reach as high as 19.6... I would not touch the EGR or DPF for a million bucks.

MrTow
09-09-2007, 11:59 PM
New Diesel Power tested a big red quad cab dually 4X4 with the Aisin auto and tow haul feature. They dyno'd it at 269hp and 473ft.lbs at the rear wheels, much better than the 5.9 but still slower by a full second in the 1/4 mile than the Duramax and Powerstroke. I don't care though; the Cummins will still outpull and outlast them.:D

The auto will keep the motor below 2000rpms at up to 75mph which really helps mileage. They averaged 17mpg @75mph, very impressive. My truck has the G56 which has to run under 65 to stay at 2000 or below. My overhead shows 23-24mpg at 65 and runs 2100rpms there. That's a high number with my caveman method of calculating showing 20-21. My mileage really drops if I run 70.

MrTow
09-10-2007, 12:02 AM
The 6.7 has a water cooled turbo, no thanks. RJF

What's the difference between water cooled and air cooled?

John T Lippold
10-05-2007, 04:08 PM
The stock turbo on 07 and back 5.9's is actually cooled by oil,Hence the need for engine run after driving for X-amount of time of driving under different circumctances,ie towing,freeway and around town.The oil pulls heat away from turbo impeller shaft bearings and a meriod of other internal engine components.I believe the 6.7's are both coolant and oil cooled.Hope the sheds some lightwaytogo

JOHN T. LIPPOLD
AKA-6.7 HVN

mister3
11-08-2007, 10:46 PM
What's the difference between water cooled and air cooled?

oil cooled turbo: turbo uses oil only for lubrication and cooling

oil and water cooled turbo: uses oil mainly for lubrication and the engine coolant to keep the CHRA cooler.

generally oil/water cooled turbos last much longer VS oil cooled only.