Never insult Caterpilliars service department like that ever again! Ford could only dream of that kind of service.

BTW CAT's don't run as long as other brands from our experience with heavy equipment. Our old 466IH's (32,000 hours and still going), Cummins, Deere's, and Komatsu's all run just as long or longer and don't cost 1/2 as much to rebuild or to put parts into as a CAT.

Series 60 for semis....... Thanks.

 

I think you are referring to siamesed cylinders, like the one used the 400 v-8. However, I thought the new 6.7L Cummins diesel was just a stroked and bored 5.9L I-6 motor. I did not hear any mentions of them switching to v-8 diesels. I do not what towing test you are refering to, but I did not know that the 6.0L Chevy could outpull the Ford 6.8L v-10. I am not too sure of the numbers for the Chevy, but I thought it was 360 hp?/375-380lb-ft of tq? The 6.8L V-10 has 362 hp and 457 lb-ft of tq. If all these numbers are true, then that Allison 6 speed with the double overdrive really makes a hell of a difference for that Chevy. The only motor from GM to match the v-10 in torque was 8.1L v-8 which I do not think is offered anymore, at least in the new GM HD trucks.

 

I haven't looked in some time, but I though John Deere is/was just as expensive as CAT. They seem like the "Big 2" as far as heavy equipment goes.

The new 6.7 Cummins puts out 350 horsepower and 650 lbs/ft of torque. It comes with a stock "Jake Brake". I ahev heard from a few that have test driven them and say they are very smooth along with the new 6-Speed auto in the HD Rams. The mileage is a tad below what the 5.9s were putting out. It's almost a liter bigger, so that's understandable.

 

Dont belive that last sentence for a secend haha. vhev needs the 6.0 to be able to out tow the 5.4L. 6.8 pulls 15k.

 

From my experience when you take the engine and tranny out of the question then FORD hands dow. The best of the best would be a FORD truck with a Cummins engine, and a Allison trans IMO. In the gas line up I don't know how the V-10 stacks up agains the 6.0 Chevy Max engine or the 5.7 Hemi of Dodge. I do know the 6.0 Chevy Max gets better fuel mileage. The guys I know that own them get 15-17 MPG. If you go on looks I think the 07 Chevy is the better looking. I think the Ford & Dodge are way to boxy on the front ends.

 

I would actually like the Duramax/Allison combo in the Super Duty.


Regardless.............for me, NONE of those diesel combos are worth the near $7,000 price of admission.

3V V10 for the win.....(maybe with a 6 speed Allison??)

 

ya the cummins is still an I6 design, just with the siamesed cylinders. It is not just a bored and stroked 5.9 like I thought. I was a sucker for that also, but it is not true.

We haven't had motor problems with our deere's, although hydro pumps for 690ELC's are mighty expensive. cough cough

The 6.0HD is no longer mated to the Allison, but rather to a light duty six spped 6L85 ??? trans. That tranny apparantly isn't as big and power robbing as the Allison.

The one magazine noted that 10000 pounds behind the V10 and the new 6.0 Gm that the GM would beat it, and the only spot that the V10 would gain on the 6.0 was from 35mph to 45mph, but from 0-35mph that the gm would get through the gears better, and that the 6.0 would hold a lead above 55mph. This actually surprised me, I am looking for the article as I type. I normally bookmark such items.

 

Ah found it, but it has be revised since the last time I read it, or it is a different source. Not sure. but anyway it was on roadandtrack.com

"In a non-scientific trailer-towing comparison test held at the press introduction of the new Silverado and Sierra HD models, I had a chance to drive both a Sierra 2500 HD Crew Cab 4x4 model with a 6.0-liter V-8 and a Ford F-250 Super DutyCrew Cab 4x4 with the 6.8-liter V-10. Towing 12,000-lb. trailers up a 6 percent grade on Interstate 8 east of San Diego in California, the Silverado HD was able to climb the grade a bit faster than the Ford, and its engine was much less thrashy at high rpm. What's more, the Silverado interior was more plush, quieter, and more refined. In the Ford's defense, however, a new Super Duty is on the near horizon."

-roadandtrack.com- page 2 of the "07 silverado HD & GMC sierra HD" article

 

Dodges cummings aint no slouch but thats the only good thing about the dodge i dont have any exp. with chebby and ford has a grat truck with a powerchoke so imo take the cummings put it in a ford and you got a perfect truck

 

I thought they stopped selling the 8.1 also. Too much of an underachiever with that sweet 6.0 right on it's heels.

6.8 V-10 way good for pulling.

 

Interestingly enough, I was on the highway driving west out of Memphis going back to the Metromess. I had to stop and refuel the Escort and of course tend to other issues. When I came out there was a hotshot with a F350 dually, I think about a 02-03 model. The driver was pumping desiel into a bed tank, so I talked to him for a moment. It had been reengined to a Cummins. And it was an I6, but he didn't know which one. He did love the truck, even though it wasn't his. Said he had it to drive from new. And that when the International V-8 tanked the company he works for put in the Cummins. That was in 04. Still trucking, and according to him it pulls like nobody's business.

I realize that's all heresay, but it's a legitmate offering about recent pickups.

Guys that I work with have Dodge's. And like posted earlier, they are electric headaches on wheels. I only know what I read about the GM trucks, and magazine writers are not professional drivers. In spite of what they tell you.

 

Jonas thats awesome I got a guy at work who we joke with all the time about his dodge dually hes got the cummings we tell him great engine not so great truck

 

Either R&D totally messed up that "test" or you're reading it wrong:

http://www.pickuptruck.com/html/2007.../hd/page5.html


We used a Silverado 2500HD Crew Cab 4WD hitched to a 9,000 pound ballasted trailer with a windscreen for the first run.

Equipped with the 6.0-liter gasser, we pulled onto I8 for an uphill climb against a 2007 Dodge Ram Quad Cab 2500 powered by a HEMI 5.7-liter V8, rated at 345 horsepower and 375 lb-feet, and a 2007 Ford F-250 Super Duty Super Cab with a Triton V10, rated at 362-horsepower and 457 lb-feet.

Both the Ram and Super Duty were pulling identical 9K trailers with windscreens.



We lined up against the Dodge and the Ford separately on the highway. When the trucks were even with each other at around 45 mph, the drivers signaled to each other to hit the gas and pound up the grade.

The Dodge, was quickly dropped but against the stronger V10 things got interesting. The Super Duty initially pulled away from the Silverado HD from 45 to about 52 mph, but from 52 to 70 mph the GM pulled up to and passed the Ford, and from 70 to 75 both trucks stayed the same distance apart from each other until both drivers took lifted the accelerator pedals off the floor. We’re chalking this up to the Chevy’s 6-speed transmission versus the Ford’s 5-speed. Both trucks were sporting 3.73 rear axles.




A few observations:


You can't get 3.73's with the V10....If the V10 had 4.30's, I will be "slightly" disappointed.

The test was from a 45 MPH roll..........I would like to have seen some 0-freeway speed tests.

And while I applaud the GM's performance, it was a GM show. I will give more credence to a non-biased gathering.


Being too lazy to look up GM's max towing numbers with the 6.0 gasser, I would be willing to bet that the V10 would outpull the GM with 15,000 pound 5vers.............If the GM is even rated to tow that with the gasser.


Lastly, I always hate this last excuse; but the Ford has close to a 1,000 higher curb weight than the GM....(at least it has in the past)

 

Ya I am sure the curb weight on the superduty is higher, and prolly still sets higher, but towing is towing. That was the one I read first, but what I quoted was directly from road and track.

Notice my original post I said i thought 10k, but road and track said 12k so take it for what is was worth.

I too would have liked to see it from a dead stop. I thought it was still impressive that the 6.0 would compete AT ALL with the V10.

I wish magazines knew half about what they are talking about. They could screw up a one car funerial.

Although after thinking more about it, the 1000 pound curb weight could make up the difference in both the hp and torque, while the deeper gearing (???) could have helped it (V10) more in the right gear from 45 to 52mph. Don't know, just a thought but the 6.0 is down like 10hp and 50lbft of torque??? No??

 

That GM party also had a tow off with the diesels which included 12K trailers.
I'd bet that's where R&T got confused.
While I like to use mags for hard numbers, this was not an "un-biased" get together.....and you're right about mags....especially when a car mag tests trucks; but GM kinda controlled what tests and how much weight was used.


When you consider the weight difference and the closely spaced gearing of the 6 speed, I am dissapointed but not horribly surprised that the Chev could compete.

Heck, GM 5.3 regular cabs can run away and hide from my V10 Crew Cab even though I have +75 pound feet of torque......I'm sure I'm spotting 2,000 pounds.

And while I honestly don't know what the outcome would be, I'm curious to see the test with another couple thousand pounds.

I remember when Trailer Life hooked up 7500 pound trailers to the V10 and 7.3 PSD and pulled up a grade.....the trucks were almost a dead heat. But I knew at some point that extra 75 pounds of torque from the PSD would start asserting itself.


And believe it or not, the GM 6.0 has been the V10's nemesis in the past. Back in '99, the 6.0 outperformed the 275HP version of the V10. The test was fairly equal in that they recorded numbers with each truck towing the other on a trailer...........so weight was EXACT!!

When Ford upped the V10 to 310 HP in '00, I never heard from the 6.0 again untill now.


One last comment, I've read that GM does some kind of goofy programming so as to not get full power from a standing start untill you're floored for a few seconds.....supposed to lessen drivetrain shock/warranty repairs.
I'd bet that's why there were no standing start tests.