Coast Resorts Open Roads Forum: Tow Vehicles: Diesel vs gas......................


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rcpd34

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Posted: 08/20/12 08:56pm

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All I need to know is when I push down on the right pedal, my diesel truck goes a whole lot faster and tows a whole lot better than my gas truck ever did.

Brian
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64thunderbolt

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Posted: 08/20/12 10:40pm

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OhhWell wrote:

Hannibal wrote:

ken white wrote:

transamz9 wrote:

So in other words, HP ain't everything, right? [emoticon]

LOL...

It can't be since it can't exist without torque and velocity...

[emoticon]

And without both torque (force) and rpm (velocity), together kanown as horsepower, there will be no motion. [emoticon]

Torque is a component of horsepower. Horsepower is the value that determines how fast we tow. [emoticon]

Man, I sure wish we could leave it at that and get back to arguing about fuel economy and cost of ownership.

If I was worried about fuel economy I would buy a Prius and stay in a hotel.

Glen
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rhagfo

Portland, OR

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Posted: 08/21/12 01:43am

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blt2ski wrote:

transamz9 wrote:

Hannibal wrote:

ken white wrote:

transamz9 wrote:

So in other words, HP ain't everything, right? [emoticon]

LOL...

It can't be since it can't exist without torque and velocity...

[emoticon]

And without both torque (force) and rpm (velocity), together kanown as horsepower, there will be no motion. [emoticon]

Torque is a component of horsepower. Horsepower is the value that determines how fast we tow. [emoticon]

So if it is all about hp and speed and numbers, answer me this. How fast will 350 hp pull 80,000 pounds down the road on level ground?

The problem with this question is many fold....

Gear ratios, tire diam, even the tread type, aerodynamics of the rig, How may tires, width of the tires, type of ground you are on, ie concrete vs asphalt vs lose gravel vs tar/pebble vs.............

All of these issues and MORE will decide the final speed of a rig!......we can go into tranny types too, alt size, AC or not, on or off.........

Marty

HP is what gives you speed, torque is what moves the load! You can't just have one!

They work together to get the job done, older low HP diesels would move big loads up hill all day, just not very fast!
High HP gassers could fly down the road, but without extremely low (4.10 or lower) they couldn't even think about going up a hill.

I will take torque over HP any day, yes I drive a diesel 01 Cummins 5.9 DS Power Puck 285 HP 610 ft. lbs of torque. That 360 ci engine moves 12K of 5er up 6 percent grades at 55 mph with 3.55 gears, do that with the same size gaser with even the same HP, as it will not have the same torque!
I know that Diesel isn't for everyone, but it sure works for me.

Can we get back to cost of operation and maintenance please. I am getting close to 7,000 miles on current oil change, and may have Blackstone see how far I can go on the Delo 400 LE that is in there, sure would like 10K oil changes.
I think I can go 10K without needing to add any oil to my 252,000 mile engine.

Russ & Paula the Beagle Belle.
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ken white

Ohio

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Posted: 08/21/12 09:23am

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Hannibal wrote:

ken white wrote:

transamz9 wrote:

So in other words, HP ain't everything, right? [emoticon]

LOL...

It can't be since it can't exist without torque and velocity...

[emoticon]

And without both torque (force) and rpm (velocity), together kanown as horsepower, there will be no motion. [emoticon]

Torque is a component of horsepower. Horsepower is the value that determines how fast we tow. [emoticon]

HP is the rate at which work is accomplished -> Work/Time. One definition of Work is Force x Distance.

So a high HP value can be accomplished by applying a large force over a very short distance for a given time period, or a small force over a very large distance for the same given time period...

Both of the above examples can have the same high HP numerical value, but only one scenerio will move the object fast while the other scenario will move the object very slowly...

Like I said, HP is the rate of energy consumption or delivery, and it is not defined exclusively by speed...

[emoticon]

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WormDudeMike

East Texas

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Posted: 08/21/12 12:17pm

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I have had both gas and diesel. I put a high value on being able to drive with the cruise control on even when I have my 30' camper loaded down with all of our junk. It rarely even shifts out of overdrive. I think my gas trucks would have blown the engine before the cruise control gave up. Now I have a 2012 F250 Powerstroke.

Hannibal

Tampa Bay Area

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Posted: 08/21/12 04:21pm

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I've always towed with cruise control on gas or diesel. My trucks shift constantly in town loaded or not. Doesn't bother me a bit if it shifts every mile or so on the interstate with our 30' 5th wheel.

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Jarlaxle

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Posted: 08/22/12 01:45pm

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transamz9 wrote:

Hannibal wrote:

ken white wrote:

transamz9 wrote:

So in other words, HP ain't everything, right? [emoticon]

LOL...

It can't be since it can't exist without torque and velocity...

[emoticon]

And without both torque (force) and rpm (velocity), together kanown as horsepower, there will be no motion. [emoticon]

Torque is a component of horsepower. Horsepower is the value that determines how fast we tow. [emoticon]

So if it is all about hp and speed and numbers, answer me this. How fast will 350 hp pull 80,000 pounds down the road on level ground?

Fast enough to get a speeding ticket.

John and Elizabeth (Liz), with Briza the size XL tabby
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transamz9

Lawrenceburg Ky

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Posted: 08/22/12 02:33pm

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I don't think a 350 hp gas pick-up motor now days will tow 80,000 pounds down the highway fast enough to get a speeding ticket.

2016 Ram 3500 Mega Cab Limited/2013 Ram 3500 SRW Cummins(sold)/2005 RAM 2500 Cummins/2011 Sandpiper 345 RET (sold) 2015 Sanibel 3601/2008 Nitro Z9 Mercury 250 PRO XS the best motor made.