Posted by mkirsch on January 07, 2014 at 09:02:13 from (65.199.189.6):
In Reply to: HP vs Cu. In. posted by Just Another Old Geezer on January 06, 2014 at 14:12:29:
Quoting Removed, click Modern View to see
Sorry, but that's a bunch of baloney.
The definition of a horsepower has not changed. It's been 550 ft-lbs per second since God was a boy.
The reason a Farmall M had more horsepower when you were in high school was due to the overbore "firecrater" style pistons that were put in them when the engines were rebuilt. Cubes were increased. Compression ratio was increased. Hence, more power. 50 was normal for a rebuilt engine then, and 57 is normal now because of even bigger overbore kits, better parts fit, better materials, and planing the head and block umpteen times over the last 70 years.
The horsepowers used to measure 39 then were/are the same horsepowers used to measure 57 now.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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