As I mentioned earlier in the thread, I realized several months ago that a GS-911 can be used as a personal Dynomometer. The key things you have to know are the vehicle's weight including rider (~800 lbs.) and aerodynamics (Cd=0.66, Frontal Area 8 sq-ft), gear ratios, and rear tire diameter (25.59" for PR2 in motion). You log the GS-911 to a data file, import it into Excel, run some math on the numbers and you have Torque, Horsepower and Acceleration. Working out how many feet/second of velocity