What gets folks confused is only looking at "horsepower" and not torque- horsepower is just a calculated number, based on torque (the actual force that moves the load) and RPM. "Horsepower", being a calculated number, can be manipulated- these days with the new "horsepower" quotas and regs, many engines can be easily made to fit under the 50hp threshold- just turn down the governor to a lower RPM. Same engine, torques just as much, but HP is less. We sold all of our I-R air compressors a couple years ago, and bought new under 50hp compliant rigs- they even say "49hp" on the back in big letters. Look at a D8- enormous torque, but very low RPM- so "horsepower" is only about 300- like that little small block Chebbie. Take the old 350 Cummins, and the derated 315- pretty much the same engine, but turned down to 1800 RPM- so "horsepower" calculates to less John Deere even has a section on their website that helps you derate their engines just by adjusting the RPM
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Today's Featured Article - A Cautionary Tale - by Ian Minshull. In the early 1950s my father bought an Allis Chalmers B and I used it for all the row crop work with the mangolds and potatoes, rolling and the haymaking on our farm. The farm and the Allis were sold and I have spent a lifetime working on farms throughout the country. I promised myself that one day I would own an Allis. That time event
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