It just cost more to do it to the PSD.

Stock vs stock they actually make identical hp and the cummins makes more torque. If your talking about towing then thats different. The PSD is very fast. I wonder if pickup truck . com is gonna do an in depth test this year. Id really like to read one like they did when the 03s hit the market. Itd be more fun now that the hp is closer than ever. With duramax and cummins being the big dogs on torque.

Psychostroker blew his up. He was at the forefront of big power. Big power is hard to acheive. Thats why so few know what actually happens when you get there. Research it. Its interesting to read about the mods necessary.

Sorry bigsnag. Ive spent years digging up info on the subject. I was bigtime into performance enhancements on diesels. I came to my conclusions after I read all pertinent information. The inline 6 is a more durable platform for ridiculous uprates. Maddog was one of the first big power 7.3s. He took it as far as he could get it. Realised there was another engine with a lot more power potential and jumped on it.

 

One guy blew his up, when he was making probably 3X the hp and torque as stock. Whoop-ity-dooo!!! I'm sure in the history of modding diesels that absolutely ZERO Cummins have ever broken. Yeah, uhh-huh. I was born at night, but it wasn't last night.

 

If the other thread has nothing to do with this comparison then why do you want it to die? Did you just become owner of this board? FYI, the "other" thread has to do with HP potential.

 

one has 325-600
another 325-560

big number wins

 

"one has 325-600, another 325-560, big number wins"

Yes, that's correct. When the red needle is on 325 hp (2900 rpm on Cummins, 3300 rpm on PSD) ... the RPMS out the rear is a bigger number for the PSD (see math on durability thread). When the gear says 1 on both, again the RPM out the rear is a bigger number for the PSD. In fact ... the RPMS out the rear end are bigger from the PSD in all gears, all engine rpm combinations. This is due to "gearing".

A lawn mower of 5hp can (via a gear) put out 600 ft-lbs of torque. It would take a few days to do the quarter mile. An engine of 325 hp can put out 600 ft-lbs of torque and go much faster. However ... the PSD also puts out 325 hp, but puts out MORE rpms when doing do. Axle turns faster. Wheels turn faster.

Faster come from bigger RPM number on rear wheel. Bigger RPM on rear will = win ... win race. Win race big time.

Engine with 1000 ft-lb torquem and still only 325 HP no better than engine w/ 600 ft-lb. Why?

Law of physic say ... torquem is smokem drug for dumdum who not know better. 325 horsempowerum is the speed-of-light for how much workem and how fast workem get done.

Two engine at 325 horsum both do same workum in same timeum. Unless, one engine wastum powerum with lower gearum. THis be Dodgem. Dodgem puttem out less RPM that it have to. Must change transmissionum for better RPMum.

Get cluem? Probably not.

Tonto leave you alone in desert ... think plenty big ... I'll come back and check if more brain cellums grow between ears.

 

There you are wrong. GM has had a diesel in their trucks since '82. Ford since '84, and Dodge since '89.

 

Actually Ford had an inline 4 diesel as an option in 69 too. Seen one minus the engine. So technicaly he may just be right.

 

Guess your right. Gm beat ford to market by one year. There was no comparison between the two engines though. 6.9 all the way. Ford was using the 6.9 since 1982 but not in the f250s as I believed. They started using em in f250s 350s and econline vans in 83.
When did they make the diesel rangers?
See what was omitted on the bottom. Am builds h1 but it dont say nothin bout h2's. Weird.

 

Dumdum thinks you must movum peekum hp upem in the rpmem band not regearum transmissum. DumDum thinks you not thinkun well. Dumdum says puttum downum the peace pipe.

Using less rpms to do the same amount of work is not worse. Its better.

Granted he who makes more torque at higher rpms will be faster. The one who does it down low will have better driveability.

Using less rpms to do the same amount of work promotes durability. Youll lose a few races but will win the toughest challenge of all. Time.

Its too bad that engine has to spin so many rpms just to make some hp. Maybe theyll get it right next time.

 

Just because it's different doesn't mean it's wrong. 3300 RPM is hardly "so many." Think outside the box and give it a chance.

Ford says the engine will go 250,000. That is a higher factory mileage rating than ever before. I'll let you know when mine hits 249,999 and is still running strong.

 

My first diesel was a new 87 6.9 with 4 speed manual transmission.After eleven years and 300k miles, with no drive train problems, I bought a used 96 F350 CC 7.3 auto. Which now has 204k miles on it with no drive train problems. And yes I have pulled heavy loads behind then both. The guy who bought the 87 tells me he has almost 500k on the truck.
Guys with Dodges and GM's talk bad about my Fords, which I am still driving and they have replaced theirs. One friend leased a Dodge 5.9 and told me how much better It was that Ford. I handed him the keys to my F350 CC for a test drive. His lease ran out he now owns a PSD.

 

It was tongue in cheek. I though his responses have been a bit childish lately.
If high rpm torque is so all fired important. Lets ditch these diesels and get a v10. Or an 8.1. Or a hemi. Id rather have 325hp at 2000 rpms than at 3500 or 6000. Works work. For racing. It would be better at 6000. For working its better as low as possible. True work diesels dont see much over 2500 rpm.

If I want to race Ill get a cobra svt. For overall driveability the lower you make the power the better it drives.

Any of these trucks will do the job fine. I never thought id see a light duty diesel making over 300 factory hp in my life. Specially since 220 will move these trucks fine at their gcwr. Everything else is just cream.

 

Hey injunear. Friends dont let friends drive Dodges. Get in a superduty for a day theyll be ownin one the next. Thats what I felt when I rode in a friends. Looks like Built Ford Tough described your trucks to a T. Hey welcome to FTE. Your going to love this site.

 

Been reading the comments for months, just thought it was time to jump in the frey.

 

Its about time. You joined the same time I did. Look like I jump in to often. Post up we need your input.