All of these issues and areas of research are what I am trying to learn about. I have done much researchand will do much more. The engine design I have is not a prototype, or a blue print, it is an idea. I am making it as detailed as I can so that I can understand and address all of the issues out there. I'm not presenting this and saying this is the thing! Sorry if I come across that way, I'm saying "hey I have an idea and it looks something like this, what do you guys think" I've tried finding information on emissions issues and various solutions and ideas, but honestly it's tough to find. I don't even know where to start with thermal tollerances and such. So I'm putting what I have out there and asking for help to find the rest. You have given me some things to think about and some places to start and that is what I am looking for. So keep the comments comming and be as specific as possible and please offer some sources for reasearch. Right now I've jest been looking for information from free sources, but in the near future I will probably look at buying some research material. I think everyone knows that paying for knowledge is the quickest way to get ripped off so I guess I'd like to know what the best sources are as well. I know people are going to suggest school but I really suck at school and I just can't handle spending a week learning to use the power switch and wear my safty goggles correctly.