Hello websterbrothers, i think if you have 3 wires output, there is an star configuration, then you have neutral inside stator, you could find it and you will have 6 wires, but i think it´s not easy. the circuit you draw is ok, but i think it multiplies x3, if you want a x2 multiplication, you only have to put one cap for phase, for example betwen 1 and +, 2 and +, 3 and +, or you could multiply one phase x3, another x2, and another x1, then they will begin to charge when rpm raises. You can experiment, there are some variations. Another thing is the value of the caps, i don´t know what´s the formula, but output current is diferent with diferent values. You can do some test using a little transformer 220v/6v for example, conecting to the grid, then with a bridge rectifier try with different caps, you only have to put caps betwen ac and + or - in the bridge legs, then with a meter you will know if that´s a x2 or x3 or...