Dyno Dynamics Hub dynos reverse calculate the Torque, they also don't need to take into consideration the wheel diameter (and high rpm trye bloat) unlike roller dyno's.
It works provided the operator enters the correct diff ratio & the car is run in whatever gear is 1:1 (or the closest to it)....Oh and the
IAT sensor isn't hanging on a wall!
Jester Understands this btw, hence his jest.