i was into racing lawn tractors before when i was a teenager. a couple of friends and i once got over 50 hp out of an 18 hp kubota diesel and was able to bring it up to almost 65km/h.- it woulda went faster had we had more $$ and know-how, guts or stupidity (whichever you call it). but at anything over 40km/h it felt like we were seriously risking our lives... speed wobbles on that thing were something else!
