That comment may just prove you spend your days in a labcoat. If rapists all wear blue hats and you wear a blue hat, does that make you a rapist?
A dyno measures the torque of an engine, a torque wrench measures the torque applied to a bolt. It doesn't matter what is exerting the force on the wrench, whatever it is is the thing that is producing the torque, the wrench is just measuring the applied torque. The wrench itself (or the lever) is just multiplying the torque so not as much force is required to get the bolt to the required tightness. Just like the engine is providing the force required to spin the crank shaft.
Ohh I wanted to also mention something in regards to Torque in applications, "Not an abba fan" this is not aimed at you...
Torque from an engine to wheels is similar in essence to that of a torque wrench or driver...
Elaborate... We try and undo a massive bolt with the handel of a small wrench? won't work very well... not enough applied force... we do it with a longer wrench more applied force is driven through the device in question to turn said bolt...
Think about this in an engine scenario, Power is applied to the crank spinning an axel, so if we think about it as the maxium amount of force has been applied in the engine and is being expelled through gears, axel, diff to wheels, to road... Torque is but a by product of energy applied earlier to spin something with mass and or resistence e.g. a road!!!
apologies for double post...