junker2,

"is the single phase motor in Australia any different?"

The motor, no; but the power supply IS.
Since this thread is about single to three phase conversion, single phase motors are really not under discussion. So, one more time, I don't know your location, but I would guess that you're in the USA. I the states you have the capability to split 220 volts into two single phases of 110 volts thereby enabling you to maintain the speed of a 3 phase motor with 2 phases, IN AUSTRALIA WE CANNOT DO THAT single phase is one hot line (L1) and ground (no L2).

Rob.