Not as fast as that. But then I have noticed a lower quality crush at high speed from a valley mill so I slow the drill down as much as I can. Is that grain mill trailer mounted?
I reckon if the laws of physics allow it and I turn my drill up to max speed my super charged porkert would give you a run just need a hopper that could hold enuf grain!
Now guys, I was meaning a fair contest where everything is hand powered. Having said that it seems I would give some of the powered models a run for their money.