Horse power is only how fast a specific task can get done. Pull a hay wagon weighing 2000 pounds up a 10% grade for one mile in 6 minutes (assumes full rated power on the engine/motor). It can be done by any power source with that rated horse power. Thus a tiny MC racing engine, or a 2 cylinder JD. are equal. It certainly requires different gearing to have it take place, but the power is equal. The difference between them will be in the capability to continue to produce that level of power output. Unless force fed massive cooling air, the MC engine would seize. If it made it (with extra air) it would not do it 20 times in a row. It is designed to have to make 15 horse power at 80 MPH for a long time, and 150 HP for 10 seconds at a burst. The tractor engine can do it for 10,000 hours. Jim
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Today's Featured Article - Upgrading an Oliver Super 55 Electrical System - by Dennis Hawkins. My old Oliver Super 55 has been just sitting and rusting for several years now. I really hate to see a good tractor being treated that way, but not being able to start it without a 30 minute point filing ritual every time contributed to its demise. If it would just start when I turn the key, then I would use it more often. In addition to a bad case of old age, most of the tractor's original electrical system was simply too unreliable to keep. The main focus of this page is to show how I upgr
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