I second Kurt and Ghurd's comments. As someone who's done a motor conversion (and asked my share of questions), I can tell you that it can be a worthwhile project. CAN BE.
Don't take this the wrong way, because I am NOT insulting you. But your initial post seemed to suggest that this was a new, novel idea. And your other questions show that you are only beginning how electrical generation works, let alone motor conversions.
I am saying this to share that I have been where you are. 
At your level, there aren't any quick, easy answers. The best thing to do is read all that stuff. Read it again, then formulate questions. Then research the questions yourself and then ask here.
It may seem overwhelming, but will all come to you. BUT you JUST CANT can't skip those steps! Trust me. I've gone back and re-read ghurd's (and others') posts back from when -I- was a newbie. They were giving me great answers that I was too ignorant to understand.
Print out the zubbly stuff and take it to work or the bus stop if you have to. Before you buy anything. Your wallet will thank you later.
