thats a good page too. I read that and all of the competitors pages before i bought my Yank a few months ago.
For example, a stall torque ratio of 2.0 would multiply 200 lb. ft. of engine torque to 400 lb. ft. of torque at the transmission input-shaft.
so if i can make 300ft/lbs at 0 RPM on the shaaft, and my STR is 2.5 im close to 750 ft/lbs