How do Cummins compare to Duramax and Powerstroke ?
 

I'm new to this whole diesel seen....... What years are the best years for the Cummins ? How durable are Cummins and how long do they last ( like how many miles before they need a rebuild on average ) ? How does a Cummins match up against a Duramax or Powerstroke ?

i love my cummins almost 300,000 on it a 1st gen i wouldnt trade it for a chevy or a ford but theres hardcore ford and chevy guys out there that would say the same thing so i think its totally up to the individual and your own likes and dislikes and in my opinion [ you know opinions are like a$$ holes everybody has one] i think the more you bomb one or turn it up the further your rebuild average time falls because the hotter and faster it runs also means the faster it wears out theres my opinion:moon:

Cummins motor is far more superior. Just hate the truck.

Thanks guys !

Ford claims the powerstroke diesel will average 250,000 miles before a rebuild.
Chevy claims the Duramax diesel will average 250,000 miles before a rebuild.
Dodge claims the Cummins will average 350,000 miles before a rebuild.

and there's alot of guys out there in each category that have went way way way over the average rebuild time and their engines are still running strong, however the cummins is the only one out there with a lot of members in the million mile club

Like he said. Plus you always hear of guys swapping in a Cummins into their Ford and Chevy trucks (or a hundred other things for that matter). How many guys have you heard swapping a PowerStroke or Duramax into their Dodge?

X2 :tu:

well thats an easy answer, none, because no one wants the dodge anyway people only by them for the cummins motor

LOL so true I love my duramax and nothing is wrong with it but cummins is a good motor

Funny thing is you dont see anyone wanting to swap a cummins into a Chevy. :w2:

I have owned 2 Fords, 1 chevy. There is nothing wrong with the dodge surrounding the Cummins engine. Sometimes you have to drive one more then a 2 mile test drive to get a feel for the truck.

Their has been more then one 6.5 swapped out for a 5.9:w2:

maybe cause they have a crappy front suspension?:humm:

Hey hey I saw last week someone selling a lifted 2004 chevy 2500 with a 12 valve twinned on ebay too bad he probably didn't try anything in four wheel drive otherwise he would be selling a broke chevy lol I love chevy just wtf is up with IFS I mean it's a "heavy duty truck" solid axle is a must

I drive a ford with a power stroke and will not change anything till it goes bad. Change oil and do what you should it will last longer reguardless of the engine. An old wise man told me once they build engines to last the more you add shorter the life I do think it is true. I have only changed to a K and M air filter that is it. I plain on getting at least 500,000 out of it just by driving ti right and doing what needs to be done on time.:rocking::pca1:

That are a number of Cummins 12Vs that are over a million miles - and thats not rebuilt.

It has been said that they are not sticking power strokes in to any thing else Why did power block use a duramax in place of the cummins :td: in their pulling rig that they made?:tttt::moon:

They just use what is given to them. Banks is also a huge sponsor to them and Gail Banks loves duramax trucks, more then likely will set that truck up will all the goodies.

Hope power block knows more about Duramaxe's then cummins. A week ago on one of the shows they had a story about the 6.7 cummins and they called the fuel pump a VP44:s: that hasn't been used since 2002. For that to get past 3 guys and there editing I don't think they know much about anything

My main thing about any engine out their take care of it and it will last longer. That goes for ford, dodge, or chevy take your pick. The rest is just personal opinions. And for the pulling cummins in other trucks it is cheeper to get a used engine that a new one. Not to dash your dreams if I bought a project truck it would be an old chevy and drop a benz motor in it not a cummins that benz motor will do any thing I want it to and more.:jump::pca1:

Hey guys I was... and still am Chevrolet at heart til the day I die. I now own an 01 QC 5spd Cummins and love it. If Chevy had a swingin 60 under the front end, was commonly seen with a tall stick in the floor, and didnt set me back $25,000 for a decent one thats probably what I would be driving. I do have to admit though the Dodge is the farm tractor of the 3.... and I love it!!!!

im hardcore chevy but imho i think the cummins is a tougher engine, i looked at a 96 power stroke but went with the 12 valve bc the mehcanical, but ive owned all three and have not found one that i didnt have to work on... gm should have just started running cummins with solid front axel

But see that's just too smart an idea for GM to ever use.

when the 7.3 goes in my f-350 (300k miles already on the truck) i'll stick a commonrail 5.9 cummins in it, and back it with a ford 6speed. so i'm planning on it being another 300k till then.

They're really all about the same in my opinion. There are a few million mile trucks out there, but realistically who's gonna put that many miles on a truck?

One picture is worth a thousand words:
http://stuff.is-a-geek.net/PhotoAlbum/1/rods1.jpg
The Cummins will take alot more bombing before anything lets go on the bottom end, that's for sure.

those dmax and 6.0 rods aren't dmax and 6.0 rods :humm:

Ya your right. the cummins rod actually look a lot like 6.0l rods although cummins do have rods that are very similar. the dmax rods look almost like the 7.3 rods without the bottom balencing bulge. and the "6.0l" rods look like dmax rods. :choochoo:

Don't forget the Cummins rods need to be 33% larger anyways to make up for the fact that there's 2 less pistons to make the same power with roughly the same displacement.... Not really a fair comparison comparing an I6 to a V8 connecting rod.

That's an old pic, probably 7.3 PS rods. But the Cummins rod hasn't changed much over the years for obvious reasons. :w2:

I do believe that cummins is the superior motor of the three, I have a 99' with 259k on it with no problems and seems to just be getting broke in, although I also have 00' powerstroke with 376k on it without a rebuild and is still running strong to my surprise. No mods to either.

well that and also due to the design of the bottom end of the motor they have more main caps 7 of them to be precise, while the v8's have 5.

more main caps you can push the tuck harder cause the bottom end is mechanically built to handle more torque. and if its able to do that, then the cranks throws (connecting rod journals) can be placed out further on the crankshaft mechanically increasing the torque though a simple fulcrum principle. and the other parts have to stand up to the extra demands so on and so forth.


each motor was built for its intended purpose and ratings.

every motor should last you a very long time no matter what make, if its maintained right with the right oil at the right intervals you should not have a problems. because there is no metal to metal contact ever if its maintained.

I know on the cummins and the dmax you do have to tear into the valve covers periodically to adjust the valve lash. But on the power stroke they have hydraulic lifters so there is always zero lash and never needs to be adjusted unless there is a serious problem do to the lack of lubrication.

I LOVE my 2005 DODGE dually 4x4, Its stk including the cat converter, it pulls anything I've ever wanted to, gets great milage, easy to work on, ( you don't have to remove the cab like FORD or be a Contortionist for Chevy ) to get to areas low under the hood, hard to beat, and yes I've owned and worked on all three but DODGE is my favorite:tu: Just my opinion:w2:

Cummins, you get more horsepower with less moving parts (6 cylinder in-line engine)

Chevy, V8 motor (made in tokyo)
Ford, V8 motor, I still have one, 96 ford f350 7.3 International (pain to work on, very tight places, very expensive to get a lot of HP

y do almost all the tractors that run wide open there whole life an semi's pull ever mile have inline 6:rocking: if V8 diesels are so great an powerful y arnt they in them. im a ford guy an had a powerstroke for my first diesel an drove many (no power). can't say anything about chevy never pulled with 1 but don't like the motor seen to many go down the track an the manifolds glowing:w2: I rode in a cummins 1 time an 4 months later i had 1 for myself never thought i would ever own a dodge but if ur gonna pull an want to get there faster then ur ford or chevy friends CUMMINS is the way to go. 1 more thing the amount of money u have to put in to get more power is alot less then the rest :tu: (just an opinion)

yeah get a new ford then you can pull your cab off when you want to work on it.

Very nicely put I dont like the whole this is better mine is better game but I think that it is up to the individual as to what they prefer and what they want. For me I have always and always will be a true Chevy fan when it comes to gas engines but for a diesel my preference is always going to be cummins. And as for the Dodge body and ride I like it my dad has an 04 chevy 2500 gasser and I think my Dodge rides every bit as good JMHO :c: :pca1:

Parts an airflow management.


and with the newer technologies people don't even have to lift a finger to make alot of power with any of the newer diesels, how much power you make depends on something else (ill let you figure out that one for yourself)

I don't really under stand this. The way I see it is only 1 piston fires at a time. So if I have a lets say 300 hp 5.9 cummins each cylinder only produces 50 hp?? Wouldn't each cylinder fire have to produce 300 hp because they fire one at a time?:humm:

33% ? 2 less pistons? Fact is, the Cummins parts are comparitively HUGE next to the V8 rods.

Some would use statistics and numbers as a drunk would use a lampost - more for support rather than illumination.