I picked up a large 15 HP AC motor stator today. I think it will work nicely. I paid scrap price for it and will get some of that back when I take out the copper wire and the outer body.
I will be left with just the internal stator made up of metal layers. It should look something like this.
I will then use normal 14/3 house wiring cable and loop it though the “donut” about 50 to 100 times. I can then take the output of wire 1 and connect to the input of wire 2, and the output of wire 2 to the input of wire 3 and the output of wire 3 is the end of the daisy chained wire. So, if I wrap the “donut” 100 times, I effectively have 300 turns on my primary coil. Or if I did 50 wraps, that would be 150 turns. You get the picture.
I might place in a bucket of transmission oil to “Oil Cool” it as well. I don’t think I’ll have to though. The duty cycle is pretty low.