Yeah but when you get a 6.7 going good, they enter the regen process and your egts go sky high and you have to ease off the throttle.(personal experience.)Our ford 6.0 service truck has nothing at low rpm. towing uphill with one is a nightmare. I love my 5.9. I wouldnt have a ford if you gave me a million dollers and a ride on a rocketship to take one. You need totalk some sense into your friend, or send him over this way and we'll greet him with a cloud of blacksmoke, blackmarks, and no doors on his little ford.

 

I guess the question then is, what is considered lugging to a Cummins?

Mine pulls very cleanly without too much of a load right from idle...... Heck, I can just let out the clutch without throttle and it never even drops the RPMs.....

I guess I wouldn't try and leave from the stoplight at 500 RPMs.

 

I suppose if you define all the terms, a case could be made for the 8cyl as the better "lugger." As has been said, lugging is not good, the Dodge will pull out fine with no throtle at all, yada, yada. But what is lugging?

Low RPM load. Key word "load." Give the Cummins enough fuel under load with timing at low RPM and you're going to see pistons in pieces. It's simple math. 8 hits equals more smoothly applied power for a single turn of the crank than 6.

Is there a practical application for this? Not in the automotive world. Maybe for the big ship diesels running at max 300rpm with 16 cylinders. Methinks not if you are going to drive a pickup truck in a sane manner. Ford guys will grasp at any straw sometimes.

Simple math, and a facetious argument. I'll take the Cummins anyway.

 

I dont know if this is true but i have heard that on the old two-stroke diesels if you lugged them down enough they would actually reverse and run backwards.

once again dont know if this true but while we are on lugging I thought i might see if anybody else had heard it

 

Don't respond to that letter. In Arizona you have to be "personally served" with a citation. Just ignore it, and it will go away. I doubt that the TPD will send a process server to Hobbs, NM to serve you. Also, if you get a FedEx letter from Tucson, just refuse to accept it. They have tried that one too, in an attempt to get you to sign for it so they can prove "personal service".

Everyone here hates the photo radar.

 

I would consider lugging as running any engine at such a low RPM with a load at a gear ratio, that when extra fuel is given, there is no ability for RPM to pickup. This can cause piston slap and rod&main bearings being hammered. Harley Davidson owners very well what lugging is.

 

To the OP. Find a 2% to 6% grade. Take both trucks out there with a 10K load. Stop with the load on the grade. Now, with no "gas" pedal input, let the clutch out and see which one dies and which one takes off. Yes, that's at idle. A Chevy won't. A Ford won't. Only Dodge is capable of that feat. Ford and Chevy have crappy pedal modulation and you'll never keep the motor running besides the lack of power at idle.

 

Where did all your scientific information come from? Is that with 3.73, 4.10. 4.30 or 4.56 rear? Is that in 1st., 2nd., 3rd., or 4th. gear? Just curious where you seen or read about this experiment.

 

I used to work at DCX as a Design Release Engineer and helped perform said tests.

1st gear start. Rear gear doesn't matter.

 

[QUOTE=sallyman1;2546031]A buddy of mine says the 5.9 is a decent engine -


Sal, if you ever need a sheep picked out in a herd of goats --------------


HE IS YOUR MAN

 

correction rear gear does matter and this comes from real world experiance. The taller the gears the more it takes to get in to motion. For example a 4.56 will take less to start moving than a 3.73 will.

Also what is this stuff about testing on a grade.

 

WOW, I didn't know that. The questions were pertaining to "the test".

Prime example of difficulty of starting on a hill, where you are on the brakes and trying to start the truck in motion. Riding the brakes and the go pedal is difficult, so it's designed to allow you to start off at idle, with no input.

 

They'll just send you a picture of handcuffs

 

[QUOTE=morpheus;2547415][QUOTE=rednekroper05;2547413]correction rear gear does matter and this comes from real world experiance. The taller the gears the more it takes to get in to motion. For example a 4.56 will take less to start moving than a 3.73 will.Ok then did the chevy, dodge, and ford in the test that you mention all have the same rear gearing? If so what gear?

 

So tell me if one truck has 3.54 rear gears and another truck has 5.38 rear gears, there is no difference in tests.