Horsepower is a function of speed and torque. Dynos measure torque (although most have a scale calibrated to read hp at a given speed, ie 540 or 1000 rpm). If the speed varies from that which the scale is calibrated it is not accurate and needs to be converted. That being said any engine will make the same hp at any given engine rpm with only very very slight differences for friction because of differences in gear train no mater what chassis it is installed in.
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Today's Featured Article - George's Fordson Major - by Anthony West (UK). This is a bit of a technical info to add on to the article about George's Major in the "A Towny Goes Plowing" article. George bought his Major from a an implement sale about 18 years ago for £200.00. There is no known history regarding its origins or what service it had done, but the following work was undertaken by Harold alone to bring it up to show standard. From the engine number, it was found that the major was produced late 19
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