Gas vs PSD
Senior User
Joined: Dec 2008
Posts: 362
Likes: 0
it actually was kinda fun.lol
I talked to buddy who has a 5.4 250 the other day and he laughed when i said that the bench racers are bettin on a 5.4 to outpull a diesel.lol And my other buddy that has a v10 which he uses to pull light loads for work is gettin out of it and into a diesel cuz he says the damn thing wont pull it self out of its own shadow.lol
maybe i got the fire stirred up again.lol
I talked to buddy who has a 5.4 250 the other day and he laughed when i said that the bench racers are bettin on a 5.4 to outpull a diesel.lol And my other buddy that has a v10 which he uses to pull light loads for work is gettin out of it and into a diesel cuz he says the damn thing wont pull it self out of its own shadow.lol
maybe i got the fire stirred up again.lol
Posting Guru
Joined: Sep 2008
Posts: 2,498
Likes: 2
The difference between the V-10 and the Power Stroke Diesel:
Spec's from a 2001 Excursion:
Horsepower Torque
5.4 255 @ 2500 RPM 350 Ft. Lbs.
6.8 310 @ 3250 RPM 425 Ft. Lbs.
7.3 250 @ 1600 RPM 505 Ft. Lbs.
6.0 325 @ 3300 RPM 550 Ft. Lbs. @ 1600 RPM this is for a 2004 model.
If you have a 3000 pound trailer and you want to take your girlfiend to the prom the 5.4 will do the job.
If you have a 3000 pound trailer and you want to take the whole class to the prom the 6.8 will do the job.
If you have a 3000 pound trailer and you want to take the whole school to the prom then the Power-Stroke Diesel will do the job.
And if you are in a hurry and have a heavy load then the 6.0 is the quickest route from point A to point B.
This is why the four combinations of engines make the Ford so unique. Each set up is designed to handel a different application. So, depending on your application whatever it may be, would make the difference.
Spec's from a 2001 Excursion:
Horsepower Torque
5.4 255 @ 2500 RPM 350 Ft. Lbs.
6.8 310 @ 3250 RPM 425 Ft. Lbs.
7.3 250 @ 1600 RPM 505 Ft. Lbs.
6.0 325 @ 3300 RPM 550 Ft. Lbs. @ 1600 RPM this is for a 2004 model.
If you have a 3000 pound trailer and you want to take your girlfiend to the prom the 5.4 will do the job.
If you have a 3000 pound trailer and you want to take the whole class to the prom the 6.8 will do the job.
If you have a 3000 pound trailer and you want to take the whole school to the prom then the Power-Stroke Diesel will do the job.
And if you are in a hurry and have a heavy load then the 6.0 is the quickest route from point A to point B.
This is why the four combinations of engines make the Ford so unique. Each set up is designed to handel a different application. So, depending on your application whatever it may be, would make the difference.
Laughing Gas
Joined: Jun 2009
Posts: 903
Likes: 0
From: So Cal
(Yes, being a " 7.3" guy, this makes me a hypocrite, ... which is, as always, ok when I do it. )Idea for a new PSD drinking game: (preferably with a designated driver) - Gather as many V10 and 7.3 guys as you can - and make them buy a round every time they utter the words "yeah, well my... " or mention their drive train in a drunkenly pious manner.
A similar game involves the pious or bragging individual doing the drinking. This version might be more affordable for anyone who loves their V10 or 7.3 as much as we do.
I'm hoping to make this a new tradition if I make it to the next tech day.
Thread Starter
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Modular motor junkie
Joined: May 2009
Posts: 6,190
Likes: 8
From: Texas
I compare my V10 to the 7.3 because of the year it was made.
Thread Starter
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Modular motor junkie
Joined: May 2009
Posts: 6,190
Likes: 8
From: Texas
it actually was kinda fun.lol
I talked to buddy who has a 5.4 250 the other day and he laughed when i said that the bench racers are bettin on a 5.4 to outpull a diesel.lol And my other buddy that has a v10 which he uses to pull light loads for work is gettin out of it and into a diesel cuz he says the damn thing wont pull it self out of its own shadow.lol
maybe i got the fire stirred up again.lol
I talked to buddy who has a 5.4 250 the other day and he laughed when i said that the bench racers are bettin on a 5.4 to outpull a diesel.lol And my other buddy that has a v10 which he uses to pull light loads for work is gettin out of it and into a diesel cuz he says the damn thing wont pull it self out of its own shadow.lol
maybe i got the fire stirred up again.lol
Senior User
Joined: Dec 2008
Posts: 362
Likes: 0
lol Ive had two buddies get out of there v10s for diesels. One went to a 7.3 and the other is lookin at cummins right now.
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Laughing Gas
Joined: Mar 2009
Posts: 843
Likes: 6
From: Jessup, PA
Don't forget you are talking about a load that is well beyond the design limits of the truck no matter what engine or trans it has. He didn't say what size truck he used, but even a '09 F550 2wd drw chassis cab with the 6.4 is rated in the low 20,000 lb range, well under the load being towed.
"There is virtually no wear incurred if done with an automatic..." please elaborate/explain that one.
Posting Guru
Joined: Jun 2004
Posts: 2,433
Likes: 1
From: Apex, N.C.
Why are most folks scared of more gear. If you are towing alot, gear the truck appropriately. What good is a truck with 3.73's if you have to keep the OD locked out, manually shift it, and/or matt it to the floor to get over the next grade. Take the same truck, put something such as 4.30's under it get it up to speed, set the cruise, and enjoy the trip without the transmission constantly hunting or having to lock out the OD. And you will most of the time get better mileage also.
If I have to constantly think about what gear, OD on or off, or can't use the cruise, then I've got the wrong truck for the job.
Super Moderator
Joined: Aug 2003
Posts: 25,479
Likes: 742
From: Isanti, MN
There is no friction clutch in a torque converter. It's a fluid coupling. Also, the TorqShift transmission is used in everything up to the F-550, and is used in combined weights up to 33,000 lbs. WITH the automatic transmission.
With the manual, the max capacity of a Super Duty is "only" 28,000 lbs.
Posting Guru
Joined: Jun 2004
Posts: 2,433
Likes: 1
From: Apex, N.C.
Crazy001, the point I was trying to make is that if you take a truck that is underpowered and/or under geared the automatic isn't a magic pill. The wear may not occur in the torque converter, however the rest of the transmission must be taken into consideration.
Laughing Gas
Joined: Mar 2009
Posts: 843
Likes: 6
From: Jessup, PA
What I said. When a clutch slips it wears the friction materials within the clutch. Like rubbing two sticks together, there is wear there.
There is no friction clutch in a torque converter. It's a fluid coupling. Also, the TorqShift transmission is used in everything up to the F-550, and is used in combined weights up to 33,000 lbs. WITH the automatic transmission.
With the manual, the max capacity of a Super Duty is "only" 28,000 lbs.
There is no friction clutch in a torque converter. It's a fluid coupling. Also, the TorqShift transmission is used in everything up to the F-550, and is used in combined weights up to 33,000 lbs. WITH the automatic transmission.
With the manual, the max capacity of a Super Duty is "only" 28,000 lbs.
So, automatics don't have internal clutch packs, eh?
You are correct in what you listed for towing capacities between the manual and auto. It is about 4,000 to 5,000 lb difference on the F550.
That difference is probably because in order to boost the towing capacity up on the manual any further means a much higher friction compound. Meaning that you won't be able to ride out the clutch as easy without it grabbing harshly. Probably too much driveablity will be sacrificied. It's not that it can't be done.
Laughing Gas
Joined: Mar 2009
Posts: 843
Likes: 6
From: Jessup, PA
Right, you got more clamping power, but it took away a little of the driveablity, in your case in reverse.