How does a Dyno Really Work?

67Dart273 said
I REALLY started a controversy here when I claimed that there is "no such thing" as horsepower, and there isn't. HP is a myth, it is in fact a mathematical product, it s a "thing" that can NOT be measured. Dynos do not measure HP. They measure torque, and to calculate HP you need the torque figure as well as RPM or time and distance. Then you take those figures and plug them onto the HP formula, either with a computer or pencil and paper

Horsepower ain't a myth, that's like saying watt's is a myth, even if it can't be directly measured, doesn't make it not real. And we can measure it's effect we do with 0-60 mph quarter mile times, even the dyno, got to give the engine a job 1st (waterbrake) before you can measure tq and rpm.