I've performed a few dozens of tests with this machine where the windings were setup in different way. What was interesting in these tests were the stator coils connections.
First I connected only 3 stator coils to the powering circuit and the other 3 coils I used as an alternator. So in one case I had a motor and an alternator.
On this video you can see another connection, coils 1-4 are the motor and coils 2-3-5-6 are the alternator.
YouTube - scienculo's Channel