FYI, my series 2 came from the factory with a 4HP 3 phase motor. I don't know if the splines are beefier then a 1hp J-head or not...
I don't think that you would ever be able to use more then 2hp to it's full potential. The Bridgeport just isn't rigid enough to push an endmill so hard that it would require that much power.
__________________ Proud owner of a Series II Bridgeport. |