Can anyone teach or show me how a nitro engine can be modded?

Any help is greatly appreciated.

For starters, I'd suggest reading as much of this 27 page thread as you can:

http://www.rcuniverse.com/forum/m_5226191/tm.htm

Except forget the dremel. Get yourself a used motor (because you will **** it up) and a nice set of needle files.

So, not to use a dremel?

Im sorry, what are needle files?

They are just really small files, they can be found at lowes/home depot. You want a nice set, as the cheap harbor freight sets dull out pretty quickly. I do all my motors with files, dremels are people with short attention spans. The end product is also a lot nicer.

Thanks for the tip.

What would I have to do to the engine?

Make fangs is what Ive heard. Is there a debt I have to go? what about the direction?