Fantastic. You worded it perfectly. This is exactly right!

 

Than not likely you will find a proffesional gardener stupid enough to buy one with gas engine.

 

I have to concur.

I've driven diesels, for work, putting more than 300K miles on them in 5 years.

Never having personally driven a Ford PSD, my experience with others is that yes, they do it differently than a gasser.

They haul at a certain rate, and until you REALLY overload them, they pull the extra weight at about the same rate of acceleration as when empty. They rev out to their red-line, pulling the same all the way until it hits the governor or the automatic tranny shifts.

A gasser acts entirely different. It will accelerate when empty like a rocket. Load it down, it slows down, and there is a point where two similar engines like the V10 and PSD according to many here, where the gasser will not accelerate as fast as the diesel when heavily loaded, but still do the job, and never ever give up for lack of trying.

The differences between the two can be summed up very quickly:

1) The gasser has a lighter crankshaft, rods, pistons, and flywheel. Less rotating weight means when it's unhindered (no load), it will rev up VERY fast. Unlike the diesel which has to fight it's own rotating and reciprocating weight to increase RPMs. Because the diesel spends so much power just accelerating it's own innards, when you load it up, the acceleration doesn't fall off as much, and the turbo can spool up and provide more boost.

2) The diesel has a narrower RPM range because of the heavy innards. While this has been gone over and over as to how it effects overall torque-to-the-ground at certain road speeds using the same transmission, it immediately makes it's presence known in how it "feels".

There is nothing inherently good or bad about either one when engineered correctly.

Some people like boxers, some prefer briefs

 

See, here we go again with the "stupid" thing, which gets either side riled up. Please do not use language like this, it only adds fuel to the fire.

Is it "stupid" to want a mower that can be repaired easily? Is it "stupid" to not have to deal with the smell in residential areas where the soccer mom ain't gonna be happy smelling diesel exhaust through her open windows and makign the house stink for hours, instead of fresh grass clippings?

Is it "stupid" to call people "stupid" because they MIGHT choose something you yourself do not?

I'll let others be the judge

 

Once again, all the landscapers, gardeners and commercial mowers around here all have V-twin gas (or propane) engines. I guess every single one of them must be stupid?

A mower with a 16 foot cutting width is not a professional or commercial machine, that is an industrial unit, meant for mowing down farm-sized fields. Something with a cutting path that big would require 70-100HP, and I can assure you no professional gardener or landscaper has a mower that big.

Plus more often then not with smaller diesel powered equipment, once the engine goes the whole thing is worthless. I know someone with a bobcat skid-steer, its Kubota diesel went out, and the cost of a replacement engine is more then the entire machine is worth.

 

You've got it right bro

 

here are some of my experiences with both powerplants...

I am a volunteer fire fighter, we have 3 light brush attack platforms..all three are F350's and automatics. One is a 2003 V10 crew cab, short bed, 4:10 4x4....another is a 2002 PSD crew cab 4X4 short bed, 3:73's...the last is a 1991 460,standard cab, 4:56's.

I have fought fire off all three, usually mobile attack or perimeter maintenance.

The V10.....more than once I have ran out of power....by that I mean dropped a front tire in a ditch and did not have the torque to pull itself out in 4HI. Pedal to the floor, tach stalled at ~2K and not a tire spinning and no forward movement. had to drop to 4lo to continue the mission.

The PSD......same fire line, same ditch....4HI.....dropped the front in, forward movement ceased...rolled on to the throttle, turbo spooled up and out we came...still in 4hi.


the 460...well it's a 460 with 4:56's, reg cab DRW so not really fair to compair...but lets just say it is a tank.

here is a pic of the V10 unit, nice rig and nice to drive but if we're heading for the smoke I usually jump in the PSD if it still there.


<a href="http://s203.photobucket.com/albums/aa176/sclemenson/?action=view&current=lb544_a.jpg" target="_blank"><img src="http://i203.photobucket.com/albums/aa176/sclemenson/lb544_a.jpg" border="0" alt="Photobucket"></a>

 

There is something wrong with the transmission if indeed there is no wheel slip.

The torque converter should not let the engine get above 1500-2000 RPM.

If you're hitting the full 5000 RPM, most likely the tranny clutches are slipping or there's something wrong with the torque converter.

Seriously, get it looked at ASAP if you use this truck for fire fighting.

 

And I burn garbage with diesel fuel....

Who gives a ****.

 

How can they both be easier? If you are going by power of the engine then the diesel wins. I know the gas has more hp but torque is amount of work the engine can do. a 3v v 10 makes 457 ft lbs while the 6.4 psd makes 650 ft lbs. That means it would take 457 lbs of weight on an 1 ft rod attached to the crank to stop the v 10. It would take 650 lbs to stop the 6.4. More weight to stop the engine means that engine is stronger. A bolt torqued to 100 ft lbs is stronger than one torqued to 50 ft lbs. Just adding some more salt and stirring more!

 

you are right on the money there Krewat, just went out in the bay, grabbed the wheel chock from the pumper next to it, flipped it around backward, placed it under the drivers side front tire and tried to climb it in 4 HI, tach made it to just below 2K and she just sat there sweating.

I guess in the heat of the moment the other times this has happened I was more concerned with getting moving than accurate tachometer notation.

 

To make it clear -my reply to Bill had 100% flaming in mind, but the replies show again how unsecured gassers owners are.
So let's talk facts. We can discuss if the "mow, blow & go" guys that come to your place for 15 minutes every other week are real professionals, but take a look around. There are millions of commercially used engines in 40-80 HP range in this country. How many of the are gasoline powered? Shall we say less than 1% or rather 0 if we don't count old fleet????
So now talking seriously, you can still find good number of truck owners who will buy the "V10 make sense in some situations" sale pitch.
But there is not enough farmers and professionals to buy this crappola to even think about starting the production of gas engines for the market.
So yes, gasoline engines did make some sense in tractor and commercial use .... about 50 years ago.
Side effect of the situation is, that starting proffesional who can't afford or don't need 40 HP machine have no other choice than go with gas engines. Lot of them still run 2-cycles.

 

You must be a "professional" garbage burner them.

 

If the V10 was at 5,000 RPM and no tires were spinning, then the transmission is screwed. Just think about that for a second, if the engine is at 5,000 RPM against the limiter, and no tires are moving, how is the engine running out of power? Either it was low on transmission fluid, the torque converter is damaged, or the clutch packs inside the transmission are gone. The torque converter stall is <2000 RPM, that means if you encased the rear wheels in concrete, and held the gas pedal to the floor, the engine will not go above 2000 RPM.

@PorchFarms, work is force through a distance. Distance is the key word here. In the case of engines, this distance is the crankshaft spinning. While yes the V10 puts out less torque, it spins much faster generating more horse power, which means that it can do more work. You can make up for the higher RPM with proper transmission and rear end gearing. This is why a 19,000 RPM F-1 Racing engine that only makes 180 lb-ft is able to accelerate the car to 60 MPH in 1.9 seconds. It spins so fast while making that measly 180 lb-ft that it makes 700HP +

 

Horsepower is imaginary.