RPM to Pulley Question Please Help Thanks!! I have a log splitter that uses a gas engine 3600 RPM the drive pulley is 1.5"OD diameter and the driven pulley is 18.25" diameter (Super Splitter is the brand name) So from what i calculated was the driven pulley weighs in at 75lbs and spins at about 295 RPM's. Now to my question: They sell these splitters with an electric motor, So my grandfather gave me a 1 hp electric motor that rotates at 1740 RPM. If i put on a drive pulley with a 3"OD will i have basically the same outcome? Im calculation 286 RPM. This splitter uses the weight of the flywheel to throw the ram forward. And i would like to convert to Electric because it is alot quiter for my neighbors, they already have to hear my chainsaws screaming! Thanks Everyone!!!!