So I was at the dyno the other day and someone asked me why torque and horsepower were equal at 5252 r.p.m. (where the traces cross axis).
I was never able to explain it without people glazing over and becoming semi-conscious.
Here is the simplest explanation I've found and is fundamental to a dyno calculating power:
Mr. Watt said that 33,000 foot pounds of work per minute equals one horsepower.
If we divide 6.2832 foot pounds of work per revolution of that weight into 33,000 foot pounds we come up with the fact that one foot pound of torque at 5252 r.p.m. is equal to 33,000 foot pounds per minute of work or one horsepower.
HP = Torque x RPM ÷ 5252
And now we know but...Do we care?
I was never able to explain it without people glazing over and becoming semi-conscious.
Here is the simplest explanation I've found and is fundamental to a dyno calculating power:
Mr. Watt said that 33,000 foot pounds of work per minute equals one horsepower.
If we divide 6.2832 foot pounds of work per revolution of that weight into 33,000 foot pounds we come up with the fact that one foot pound of torque at 5252 r.p.m. is equal to 33,000 foot pounds per minute of work or one horsepower.
HP = Torque x RPM ÷ 5252
And now we know but...Do we care?
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