Is it time for a gasoline engine tractor?

[Soundguy]

You are going to have to do a little better in reading my post...

You can pull FULL power out of your pto, but you should not pull full power out of the pto for continuous operation.

When you are mowing, you aren't pulling MAX power out of the pto... The hp you are pulling varies with the load, sometimes the grass is thicker/heavier and you may approach MAX, then you get to a easier spot and you aren't pulling MAX...

Just because you are running at pto speed, it doesn't mean you are pulling MAX hp out of the pto...

That's the part "some of you here", are missing...

SR

Your the one not reading my posts.

I didn't say pto speed/rpm, and I didn't say max ? Whatever that is.

I'm talking 'rated' pto hp. If your machine won't make rated hp continuously, it is.. Well.. Sad
A machine should make its rated hp at load, till the fuel tank sucks in, then do it again when you refill, rinse and repeat.

I can certainly guarantee you I have pulled rated load for a couple fuel tanks a day, till I was tired, not the tractor!

Now give it up, who's making the wussy tractor that wont do its rated load?

 

[Soundguy]

Mmm ( in the highest gear that could be pulled without continually bogging the tractors engines for hours on end had to be running @ rated pto power )

I don't think I missed anything...

If the tractors were pushed any faster they would continually bog- ie no longer maintain engine PTO rpm... and these are governed engines.

There are NO limitations on rated power pto use for Either of my diesel tractors In the operator manuals that I have been able to find.

My guess is that applies to most of the TBNers diesel tractors and their manuals...

As Yet No One has posted a manuals quote- concerning limiting use @ rated PTO power-

and if someone does, Well that's what some of us would like to see.

Exactly.

Heck my antique gassers will pull a days hard work bit IT might take a couple tanks.

 

[Soundguy]

I'm not a big ecoboost fan

c'mon Soundguy, wouldn't you like a little Ford Ecoboost to add to your extensive Ford collection? One with a cab...

yes, I did mean a Hellcat car engine earlier, thought that was funny though. Who would ever think the Chrysler 707 hp Hellcat engine would be the wimp Hellcat engine?..... As far as an engine goes, you can't be built with tougher components. But do we really need or want a tractor engine
that goes faster than 3000 rpm? And I'm still a little fuzzy as to whether we are looking for power or torque here. I'm sure both but what should be prioritized?
I thought torque involved rotational twist and that's a pto for sure. or a tractor axle pulling against the wheel held back by the friction of the surface of the ground engaging implement.

The reason the big Tesla is such a moonrocket is it produces enormous amounts of torque instantly.
We may be getting more gas engines in tractors as alternatives, but sooner or later, after I'm gone, I think all tractors will be electric.
Maybe diesel powered electric, generators on wheels, but still electric propulsion. One at each wheel. Think of how well that could steer on a row crop tractor
making the end of row turn.

And how much would you pay for that 75hp gas Ecoboost tractor Soundguy? less than diesel?

regular unleaded 2.15 today, road diesel 2.20

farm tractors need fueling and what about hauling large quantities of gasoline around? Can you do that safely? Stiffer regs than diesel? Certainly way more flammable.
And how long will it last in a farm fuel tank?

 

[DK35vince]

I think he is saying, If your using 100% of the power you stalled the engine
90% of the power your likely lugging the engine, 80% you can run continuous.

 

[Soundguy]

I think he is saying, If your using 100% of the power you stalled the engine
90% of the power your likely lugging the engine, 80% you can run continuous.

I dont know what he's saying.. That's why I'm using a quantifiable term, like 'rated' ( pto hp )

Lugging would be adding throttle and not gaining rpm.

 

[DK35vince]

Lugging would be adding throttle and not gaining rpm.

Yes and using 90% power you would be at that point.

 

[Soundguy]

Yes and using 90% power you would be at that point.

Would you?

If you have 10% more hp available.. And your load only needed 3% more.. You wouldn't be lugging!

 

[SteveM70]

Sawyer Rob, even with a generator I can't see anyone realistically running at max horsepower for a half hour continuously?

 

[Soundguy]

Max rated hp , yes!

 

[DK35vince]

Would you?

If you have 10% more hp available.. And your load only needed 3% more.. You wouldn't be lugging!

???
You stalled the engine at 100% power.
IMO 90% would be lugging or dam close to it.
So 80% continuous in the manuals makes sense to me.