Yeap! sure is in this thread we were talking about Cummins vs. Powerstroke you just altered the thread.

Tony

 

"Simplicity is the ultimate sophistication" Leonardo Da Vinci ... That being said with 40% less moving parts and produces the same if not more power with less stress and better fuel economy if were still talking trucks I choose the good ol Cummins....

 

You are correct TRUCKS is/are the subject.

Ditto! on the Cummins.

Tony

 

I was thinking the exact same thing having worked nuclear reactors for the last 25 years. It's all in the design. I have a 1950 John Deere R model diesel at the house which has a 416 cubic inch two cylinder diesel and one connecting rod alone weighs 26 pounds. I guess by his buddies calcualtions, I should be getting about 1000 HP out of that engine if bigger is better. It puts out 48 HP bone stock.

https://www.dieseltruckresource.com/...0&ppuser=19433

https://www.dieseltruckresource.com/...4&limit=recent

https://www.dieseltruckresource.com/...3&limit=recent

 

I'm not sure if there's any topic left of this thread, but consider this:

A PSD has lighter pistons and shorter stroke than an L6-- hence, the internal don't have to be as heavy duty.

All popular Class 8 engines are inline 6 designs. Detriot was most famous for Vee engines, but look now at the 60 series.

The Cummins has a pretty enviable record of bottom-end strength. Not to say the PSDs are weak, but cost cutting with PM rods and such doesn't help them in the long term. Ford's track record of late has been less than stellar, though they certainly have the engineering talent to pull it off if they so choose.

Comparing the Comparing the new 6.7L Cummins to the new 6.4L PSD based on the histories of the 5.9L Cummins and the 6.0L PSD (respectively) is essentially apples-to-oranges. The reality is that the new 6.7CTD doesn't have enough hours to know for sure just how good it is. We *suspect* that it's continuing the Cummins legacy of toughness, durability, and grunt-- but we don't KNOW that yet-- it's still too new. That said, there's no major reason to think it won't be as great-- the displacement and DPF is the only significant change over the most recent 5.9L

So, with the caveat that "past performance is no guarantee of future performance" (like the stock market, I guess), it's reasonable to think that the Cummins will be a great engine, and that Ford will continuue to screw it's customers by trying bleeding-edge technology and expecting their all-too-loyal customer base to finish the R&D for them, as they've been doing for the last 5 years.

jmo

 

Does that mean that inane generic "VEE DESIGNS ARE WANNABEES" comments have no place in here as well?

Sorry for continuing to follow than unrelated tangent.

 

I thought that the 6.7 has been used in agricultural equipment for several years now and is proving to be just as good if not better than the 5.9.

Sorry for the off topic remark, Tony.

 

You are forgiven,sometimes I just have to consider the source I'm dealing with.

Tony

 

Gee after reading all the Post & Replies I still DONO? as an Honest question was Asked? & Never Actually Answered? & thanks for the Photos of the RODS as Common Scense Dictates!--all streight engines have Longer & Heavyer Rods!--I Really liked the Train Diesel & the Floor Model both very NICE but Nothing to DO! w/ the Question Really! & being an Older Guy & Not favoring any Brand the Pros & Cons of ALL the Componants are the Final Judge the Quality of any Machine the DODGE! Cummins Diesel is a Great engine but Dodges Auto Tranny is their Weak POINT & their Steering? has to be Modifyed-- FORD has a Better Frame & their Body is as Good as Any & thier Auto Tranny has Less Problems than DODGE or GMC & Fords 7.3 is One Very Tough engine & to Make My POINT! WE All have Freinds that Own GMC & Chevy Pick Ups & We all Know! GMC Guys that Claim! GMCs are Built Better than Chevys & Vicer Verser! & We all KNOW! their the Same TRUCK w/only the LOGOS Differance--& all this Chatter about DODGEs Cummins & FORDS Power Stroke is Just THAT! Personal Preferance! I being Older & really having NO brand Preferances I Do get a kick out of the DODGE Guys knowing their Auto Tranies are the Weakest Point! Still Tweak UP their Cummins engines! WHY? so they can Blow UP their Weak auto trannies? as I think? the Stock Cummins Dose a Pretty Good JOB right from the Factory! so WHY Screw w/IT? I DONO?--Ole JIM--

 

Warning: Caps Lock Failure predicted on Smart Disc - back up Data ASAP

 

I under stand where you are coming from. IMO it does not really TRUELY matter what truck you drive, it gets down to its your money or in my case my friends money, he can buy what ever he wants. I told him to take drive in all three and go from there, just make sure to drive the one that he wants, package etc. IMO, I will not own another 3/4 ton or bigger without a diesel. I bought the Dodge because of the Cummins. It is just my preference.

 

It is kinda foolish to ask on a site that is preliminarily Dodge / Cummins what is the best diesel if that is the question? I'm sure I would be shot down in flames if I asked that question on one of the non IL6 sites don't you think?

The original question was asking for internal component sizes actually and I believe it was never answered, other than the rod comp pics, except to say that comparing sizes was not necessarily a good way to predict longevity. Hence my discussion on my old R model.

 

first of ALL I as Not the One that asked? the Question & Reguardless of the Make? if? IT Runs Good? its a Good TRUCK! & If? it Don*t? WE All know the Answer to that One! & where I have driven E*M ALL I*M Happy w/the One I have!--Ole JIM--

 

7.3 PowerStrokes used forged rods until 2002 then they switched to the PM rods. Even the PM rods were considered reliable up thru 500 HP.