Re: The great SFPM Debate
no bro you are still thinking in terms of rpm. the wheel is still spinning at the same speed. if you had a 4" wheel and turned it at 3000 rpm,it would be 3000 sfpm. and a 8" wheel at 1500 rpm would be 3000 sfpm. like your example of the wheels on a car. now spin them both at the same speed and you get 4"=3000 sfpm 8"= 6000sfpm. clear as mud right.
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