Gas vs PSD
Freshman User
Joined: Apr 2008
Posts: 45
Likes: 0
Not to mention the state police EDITED in this state love to pull over vehicles that are over their GVWR and issue citations. Its a $1 per pound that a person exceeds that.
Last edited by phillips91; Oct 6, 2010 at 07:42 PM. Reason: Language
Thread Starter
|
Modular motor junkie
Joined: May 2009
Posts: 6,190
Likes: 8
From: Texas
Bill, I thought about all of you V10 fellas today on my way into work and this is no joke. Watched a V10 w/ duals pull out onto the highway w/ a light load behind it. They definitely had it floored. I chuckled b/c it really wasn't going anywhere and turned back around and I heard a bang and the truck had to pull over. I pulled up there to see what happened after I got my can of snuff. Hole in the oil pan. Wonder what that might have been.... I found it funny and figured it would give you V10 guys something to defend. LOL.
As soon as the truck is running right I will take it to the track with you.
Lead Driver
Joined: Jul 2007
Posts: 7,868
Likes: 9
From: Rhode Island
...and guess what? Semis accelerate dog slow, have low top speeds, and often have to slow down on steep grades. Why? Because they only have around 400-500HP on average. It has been discussed numerous times in here before, HP is the power an engine can do, how fast it can do work. Get two equal HP engines at the RPM they make peak power, and they will be able to pull the same load.
A 350HP gasser in 3rd gear doing 5000 RPM @ 75MPH will pull the same load just as well as a 350 diesel in 5th gear doing 2500 RPM @75MPH. It won't get as good of fuel economy, and won't sound very happy doing it, but it will still do it.
As far as the V10 that broke, I wonder how many 6.0s have done the exact same thing, or had some other kind of catastrophic failure stranding the owner?
A 350HP gasser in 3rd gear doing 5000 RPM @ 75MPH will pull the same load just as well as a 350 diesel in 5th gear doing 2500 RPM @75MPH. It won't get as good of fuel economy, and won't sound very happy doing it, but it will still do it.
As far as the V10 that broke, I wonder how many 6.0s have done the exact same thing, or had some other kind of catastrophic failure stranding the owner?
Thread Starter
|
Modular motor junkie
Joined: May 2009
Posts: 6,190
Likes: 8
From: Texas
You have to think it gave warning too.
Freshman User
Joined: Apr 2008
Posts: 45
Likes: 0
...and guess what? Semis accelerate dog slow, have low top speeds, and often have to slow down on steep grades. Why? Because they only have around 400-500HP on average. It has been discussed numerous times in here before, HP is the power an engine can do, how fast it can do work. Get two equal HP engines at the RPM they make peak power, and they will be able to pull the same load.
A 350HP gasser in 3rd gear doing 5000 RPM @ 75MPH will pull the same load just as well as a 350 diesel in 5th gear doing 2500 RPM @75MPH. It won't get as good of fuel economy, and won't sound very happy doing it, but it will still do it.
As far as the V10 that broke, I wonder how many 6.0s have done the exact same thing, or had some other kind of catastrophic failure stranding the owner?
A 350HP gasser in 3rd gear doing 5000 RPM @ 75MPH will pull the same load just as well as a 350 diesel in 5th gear doing 2500 RPM @75MPH. It won't get as good of fuel economy, and won't sound very happy doing it, but it will still do it.
As far as the V10 that broke, I wonder how many 6.0s have done the exact same thing, or had some other kind of catastrophic failure stranding the owner?
I don't think anyone said a gasser couldn't do it I think the point that was being made was that at highways speeds with a load at its designed limit the V-10 doesn't pull the load as well as a PSD given the same circumstances. Thats all I was trying to point out in my narrow definition thru my personal experience.
Postmaster
Joined: Apr 2008
Posts: 4,724
Likes: 4
From: Rogersville, TN
I was using the 2 and 1 numbers because they are easy numbers just to show that twice the gearing will produce twice the torque, making a less powerful engine put more power to the ground. When I hit a decent sized hill at 65 mph I can downshift my 7.3 to 4th and be at the redline. That is a 4.10 final drive ratio. I can downshift my 5.4 to 3rd if I need to and still have 2,000 rpm left before I redline it. That is a 6.56 final drive ratio. So not quite a 2 to 1 ratio, but 1.6 to 1 is pretty close. That is using two trucks that both have 4.10's too.
Elder User
Joined: Dec 2009
Posts: 882
Likes: 0
From: Ohio
I'm guessing that the 85,000 lb GCVW that some of them are toting around might have a bit to do with it as well, dontcha think?
You ever been run down by dead-headin semi? Slow is something those things are NOT when a driver is unladen and has places to be, and even unloaded they STILL dwarf us weight wise.
And tell us again why allll those drivers, whose very bank accounts depend on the operational costs of the vehicles they drive, have a big fat diesel under the hood rather than a big fat gasser? And brother let me tell you. There ain't nobody that can bitch about the cost of doing business like your average trucker.
Enquiring minds and all that.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Elder User
Joined: Apr 2009
Posts: 685
Likes: 0
From: Spokane, WA
But when a v10 pulls 100,000 pounds on a regular basis, you can put semis into this picture.
Elder User
Joined: Apr 2009
Posts: 685
Likes: 0
From: Spokane, WA
But Bill, I thought v10s did not require maintenance? How can you need to "get the truck running right"
Lead Driver
Joined: Jul 2007
Posts: 7,868
Likes: 9
From: Rhode Island
I'm guessing that the 85,000 lb GCVW that some of them are toting around might have a bit to do with it as well, dontcha think?
You ever been run down by dead-headin semi? Slow is something those things are NOT when a driver is unladen and has places to be, and even unloaded they STILL dwarf us weight wise.
And tell us again why allll those drivers, whose very bank accounts depend on the operational costs of the vehicles they drive, have a big fat diesel under the hood rather than a big fat gasser? And brother let me tell you. There ain't nobody that can bitch about the cost of doing business like your average trucker.
Enquiring minds and all that.
You ever been run down by dead-headin semi? Slow is something those things are NOT when a driver is unladen and has places to be, and even unloaded they STILL dwarf us weight wise.
And tell us again why allll those drivers, whose very bank accounts depend on the operational costs of the vehicles they drive, have a big fat diesel under the hood rather than a big fat gasser? And brother let me tell you. There ain't nobody that can bitch about the cost of doing business like your average trucker.
Enquiring minds and all that.
Semi's are always slow. Even with an empty trailer. I've been in one with an empty trailer and 65 MPH was about the end of the world. Their massive torque lets the engine live happilly at low RPM, but the lack of horsepower limits the acceleration and top speed.
Super Moderator
Joined: Aug 2003
Posts: 25,479
Likes: 742
From: Isanti, MN
Even bobtail I don't think I could do 0-60 in less than 15 seconds. With a trailer I'm sure it's over 20. I have some friends who drive trucks, I'll have one of them time themselves 0-60 empty.
As Ian said, lots of torque down low and relatively low horsepower output for the large size of the engines. My 6.7L PSD has more power than many semi trucks on the road today.
Postmaster
Joined: Apr 2006
Posts: 3,524
Likes: 2
From: CA Bay Area
...and guess what? Semis accelerate dog slow, have low top speeds, and often have to slow down on steep grades. Why? Because they only have around 400-500HP on average. It has been discussed numerous times in here before, HP is the power an engine can do, how fast it can do work.
Than another time me and my wife drove BMW to Utah to pick up older Mercedes I was buying. On the way back my wife got tailgated by semi truck. She didn't like it and took off. With unknown Mercedes I lost them at 95 mph.
In both instances the semis had big trailers.
Cargo Master
Joined: Jan 2005
Posts: 2,413
Likes: 11
You are still missing what we are saying. Yes, the tranny is the same and the gears are the same, but the ability to use those gears is not the same. What happens with the 6.0 when you pull out in 1st gear and hit 3,500 rpm? It shifts to 2nd. With the v10 it is just hitting it's powerband and will pull another 2,000 rpm before shifting. By that time the psd is shifting to 3rd
Junior User
Joined: Sep 2010
Posts: 83
Likes: 0
From: BC Canada
Facts? You want facts? Fact: Your 2WD isn't going to take that gooseneck, let alone loaded with that excavator very far "off-road". That's a FACT. You make it sound like you go 4X4ing with a 2WD truck...In those Texas mountains...lol That is a pavement queen. And a slow one, to boot.
Chain up the tires and learn to drive correctly.
I guess logging trucks need to have driven front wheels now to, I see them going up steep snow covered roads daily, no issue once chained up.