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Old Dec 1, 2010 | 11:36 AM
  #9541  
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Originally Posted by RUFFSTUFF
Good to see you know what you are talking about.

Now for the kicker... How do you measure horsepower, excuse me, how do you measure mechanical horsepower?
I see you've already discussed this more, but here's the basics of what I would have said.

Since power is force x speed (D/T), the easiest way would be to either apply a constant load (force) to the device being measured, and see how fast it can move it (speed), or set the device at a constant speed, and increase the load until the device can no longer maintain the speed. Both methods would have their advantages and disadvantages. I think that is the basic difference in how some of the different dynamometers function also.
 
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Old Dec 1, 2010 | 11:39 AM
  #9542  
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Originally Posted by bill11012

Yes. I don't know that they have ever built them without air in the SuperDuty body style.
.
I think the did Bill, a guy over in the 99-2003 forum posted this a few days ago LINKEY check out the first line of the thread.

A no AC SD will be pretty rare though, probably impossible to find.
 
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Old Dec 1, 2010 | 11:40 AM
  #9543  
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Originally Posted by Old93junk
I converted to metric long ago: 5.56x45mm, 9x19mm, 7.62x39mm, 7.62x51mm, 7.92x57mm, firearms calibers always make mm's and decimal equivalents interesting.
You left out one of my favorites: 10x25mm
 
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Old Dec 1, 2010 | 11:40 AM
  #9544  
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Originally Posted by truckerboy
Do they at least come with manual windows?? (Just asking because the nearest dealer os 50+ miles away and fuel aint exactly cheap here). I'm looking for a work truck with just the basics.
Originally Posted by clem1226
I think the did Bill, a guy over in the 99-2003 forum posted this a few days ago LINKEY check out the first line of the thread.

A no AC SD will be pretty rare though, probably impossible to find.

not sure about the SD's, But a friend of mine had to order his F-150 like that. They dont just sit around on new dealer lots.
 
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Old Dec 1, 2010 | 11:42 AM
  #9545  
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Originally Posted by David N.
Since power is force x speed (D/T), the easiest way would be to either apply a constant load (force) to the device being measured, and see how fast it can move it (speed), or set the device at a constant speed, and increase the load until the device can no longer maintain the speed. Both methods would have their advantages and disadvantages. I think that is the basic difference in how some of the different dynamometers function also.
Exactly.

Rhetorical question: If I measure two variables and combine them with a mathematical formula to come up with a single value, does that make the result an "unmeasurable" value, ala Horsepower?

Does that mean "momentum" is unmeasurable because it's a combination of mass (torque) and velocity (RPM)?

Nope. Hitting a brick wall with a certain amount of "momentum" is sure to break my skull. The faster I hit it, or the heavier my skull, the more "momentum" is experienced.

This is like "how many angels can fit on the head of a pin?"
 
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Old Dec 1, 2010 | 12:02 PM
  #9546  
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Originally Posted by 2001400ex
2008 Ford Super Duty F-250 | Diesel Power Magazine Article at Automotive.com

This was refuted last time it was posted, guess some people had an issue in that it was a diesel magazine.
Is this the source of the dyno's you mentioned? If so, what they tell in the article is at best worthless. They don't show the torque/horsepower curves, so any other information is of little value. However, they didn't even as much as state peak numbers, which would also have been worthless since they admit that the dyno for the gas truck was misleading since it stopped below peak hp. Wouldn't the gas truck hit the speed limiter in 4th gear?

The whole article has a very subjective feel, with very little objective data to support their conclusions. If they were confident in the accuracy of their tests, they should have published the data like other magazines do. The mpg claims for the diesel also look very suspicious, considering that the 6.4 has a reputation for getting worse mileage than the 7.3 or 6.0 due to regen. All in all, it looks like they could have written their conclusions before they set foot in either truck.
 
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Old Dec 1, 2010 | 12:16 PM
  #9547  
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Originally Posted by ChargersFanInCO
Same guy also says he "checked the badges" when he went by them both, but, the 6.4 doesn't have a badge other than the F250 badges (the right one is an actual CAI port) and there's NO WAY he'd be able to read it saying power stroke at more than 5' away, and especially while passing it. It doesn't say 6.4 anywhere else on it. That alone makes me think "troll".
Diesel is red, gas is black. Very easy to see the difference in color far more than 5 feet away.
 
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Old Dec 1, 2010 | 12:58 PM
  #9548  
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Wouldn't the gas truck hit the speed limiter in 4th gear?
Yes. Easily at that.

Diesel is red, gas is black. Very easy to see the difference in color far more than 5 feet away.
Not to mention the massive dual vented tips on the 6.4l that can easily be seen from behind.
 
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Old Dec 1, 2010 | 01:06 PM
  #9549  
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Originally Posted by David N.
Diesel is red, gas is black. Very easy to see the difference in color far more than 5 feet away.
And if its a split tail pipe 08-10 you know its a 6.4.

EDIT: dkf beat me to it!
 
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Old Dec 1, 2010 | 01:43 PM
  #9550  
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Originally Posted by bill11012
And if its a split tail pipe 08-10 you know its a 6.4.

EDIT: dkf beat me to it!
Which is on the right side of the vehicle, so if the 6.4 had a trailer behind it, he wouldn't see it....DOH!
 
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Old Dec 1, 2010 | 01:51 PM
  #9551  
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Originally Posted by David N.
Diesel is red, gas is black. Very easy to see the difference in color far more than 5 feet away.
Are you talking about the mesh? They look more of a pink, but are heavily shadowed and look black 99% of the time until you get close. If the guy was DRIVING his truck, he would have been at LEAST 15' away on the freeway...Trying to pass...and ascertain the color of a badge...a badge that if the sun were on the other side of the truck, in front of, or behind (that's a 75% chance) would most CERTAINLY appear black.
 
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Old Dec 1, 2010 | 01:52 PM
  #9552  
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I get 14.7 L/100 KM with my stroker dry (chiped) what does the V-10 get probably 20 L/100 KM?
 
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Old Dec 1, 2010 | 02:00 PM
  #9553  
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Originally Posted by David N.
Diesel is red, gas is black. Very easy to see the difference in color far more than 5 feet away.
I can see the difference in the side grills from more than a hundred feet away. And if we're talking pre-'08, the powerstroke badge on the door is pretty easy to spot from just as far away.

Of course, I'm not color blind so red stands way out for me

 
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Old Dec 1, 2010 | 02:20 PM
  #9554  
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Originally Posted by Krewat
I can see the difference in the side grills from more than a hundred feet away. And if we're talking pre-'08, the powerstroke badge on the door is pretty easy to spot from just as far away.

Of course, I'm not color blind so red stands way out for me
Not if the sun is in your eyes... Anyway, there's NO WAY a V10 will accelerate from 50-60 and pass a 6.4 that is giving it everything it had. Not going to happen. Period. Unless the 6.4 has twice the load, and half that load were to equal 10,000lbs...However, the OP did state that by looking at it, he guessed they were the same weight. That's real scientific...
 
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Old Dec 1, 2010 | 03:01 PM
  #9555  
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Originally Posted by truckerboy
Do they at least come with manual windows?? (Just asking because the nearest dealer os 50+ miles away and fuel aint exactly cheap here). I'm looking for a work truck with just the basics.

You need a Ford Fleet vehicle. You can find them through the Ford website...
 
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