what is DynoJet and DynoPack?

i just don't know what in the world it is...

 

They are different kinds of dynamometers. Dyno's measurew torque and hp which is a function of torque at the wheels.

 

IM not sure witch is witch but I think that one requires the removal of your wheels and attatches to the studs, this is somewhat portable I think, and I think this is dynapack

Dynojet is fixed metal drums in the ground that turn as the tires turn. Some one correct me if IM wrong