I sure hope I did the right thing! (Update)
Well, over the weekend the DW and I pulled the trigger on a (new to us) 2012 Ford Certified F-250 CC 4x4 with the 6.2 gas. Traded in my 05 model with the 6.0 PSD. The reasons were just to obvious to i...
Forum Discussion
Turtle,
Torque and RPM are actual physical measurements. HP is theoretical and only calculated by using a formula which divides by 5252. The 5252 number had been proven to be totally fictitous nearly a hundred years ago. Read carefully:
https://www.ideals.illinois.edu/bitstream/handle/.../1057689_opt.pdf?...2
by ET Robbins - ?1928
4 to 6 horses to the common two-bottom gang plow .... 8 (EIGHT) horsess pulling a THREE-BOTTOM plow? Eight horses can walk right along with a plow having three 14-inch bottoms and ...
ON and ON. Look it up! Just one of thousands of pages with real tests completed and the results fully documented.
Let's see now? 8 horses can pull 3 (three) 14" plow bottoms thru Illinois soil which has a high clay content at walk speed. Got it?
Take any gas engine of 8 certified HP rating, manufatured equal to the specs used for today's produdction automotive engines like the thread OP's 6.2 engine, and even at 5000 RPM engine crankshaft spin simply attempt to pull 3 - 14" plow bottoms thru the same Illinois soil with the same moisture content and movwe at walk speed. Won't happen! Even with a rack and pinnion non-slip setup from a gear tooth pinnion drive wheel running on a mating rack anchored in the ground. The pinnion would be nornal vehicle wheel diameter. No cheating! To acheive walk speed capability at the engine's certified RPM theoretical formula 8 HP output with the gear ratios required are easily and accurately established using simple grade school math, What will happen? With the engine screaming at max rated RPM and having walk speed gear reduction, the plow likely wouldn't even advance at 1 MPH it it was able to move at all. Remember, However, 8 real horses have no problem pulling the plow at walk speed and THAT'S what real HP is! Also, remember that there's ZERO slip with either the 8 horses or the gas engine with 8 theoretical calculated HP! A gas engined tractor needed to do what only 8 real horses can do all day would usually need to be 25+ formula rated HP. Engine output shaft rated HP has little to do with how much force is gets actually applied/transmitted to the ground surface to move the burden. Loss after loss all the way along.
So much for what we commonly call "Horsepower" in vehicle engines.
Now with TORQUE, it will be a direct very easy totally accurate measurement of how much "FORCE" was required to move the 3 - 14" plow bottoms thru the same soil at walk speed. Could be linear torque OR rotational torque. Torque is force whether in inch pounds or foot pounds etc! Not theoretical! "Torque" is what moves the load to any desired RPM and that's the known fact!
Torque and RPM are actual physical measurements. HP is theoretical and only calculated by using a formula which divides by 5252. The 5252 number had been proven to be totally fictitous nearly a hundred years ago. Read carefully:
https://www.ideals.illinois.edu/bitstream/handle/.../1057689_opt.pdf?...2
by ET Robbins - ?1928
4 to 6 horses to the common two-bottom gang plow .... 8 (EIGHT) horsess pulling a THREE-BOTTOM plow? Eight horses can walk right along with a plow having three 14-inch bottoms and ...
ON and ON. Look it up! Just one of thousands of pages with real tests completed and the results fully documented.
Let's see now? 8 horses can pull 3 (three) 14" plow bottoms thru Illinois soil which has a high clay content at walk speed. Got it?
Take any gas engine of 8 certified HP rating, manufatured equal to the specs used for today's produdction automotive engines like the thread OP's 6.2 engine, and even at 5000 RPM engine crankshaft spin simply attempt to pull 3 - 14" plow bottoms thru the same Illinois soil with the same moisture content and movwe at walk speed. Won't happen! Even with a rack and pinnion non-slip setup from a gear tooth pinnion drive wheel running on a mating rack anchored in the ground. The pinnion would be nornal vehicle wheel diameter. No cheating! To acheive walk speed capability at the engine's certified RPM theoretical formula 8 HP output with the gear ratios required are easily and accurately established using simple grade school math, What will happen? With the engine screaming at max rated RPM and having walk speed gear reduction, the plow likely wouldn't even advance at 1 MPH it it was able to move at all. Remember, However, 8 real horses have no problem pulling the plow at walk speed and THAT'S what real HP is! Also, remember that there's ZERO slip with either the 8 horses or the gas engine with 8 theoretical calculated HP! A gas engined tractor needed to do what only 8 real horses can do all day would usually need to be 25+ formula rated HP. Engine output shaft rated HP has little to do with how much force is gets actually applied/transmitted to the ground surface to move the burden. Loss after loss all the way along.
So much for what we commonly call "Horsepower" in vehicle engines.
Now with TORQUE, it will be a direct very easy totally accurate measurement of how much "FORCE" was required to move the 3 - 14" plow bottoms thru the same soil at walk speed. Could be linear torque OR rotational torque. Torque is force whether in inch pounds or foot pounds etc! Not theoretical! "Torque" is what moves the load to any desired RPM and that's the known fact!
