http://www.hotrod.com/articles/82884-buildling-shock-dyno/

http://honda-tech.com/road-racing-autocross-time-attack-19/diy-shock-dyno-2325055/

Linear Velocity Transducer

"sensotec load cell that I got off ebay for somewhere around $40-50. Rated up to 500 lbs"

https://www.youtube.com/watch?v=SV0FXGfSN38 "3 or 4hp"

https://www.youtube.com/watch?v=2L_S78RpUcU

https://www.eng-tips.com/viewthread.cfm?qid=357653 "scotch-yoke drive"