title got youre antention, but this is a very revealing video of whats goin on during combustion etc a high temprature miniture camer shooting 1000fps mounted inside the cylinder, also great to show the less knowledgable as to how an engine works
http://www.liveleak.com/view?i=73e_1192001762

this another site that has very good engine animations
http://www.keveney.com/Engines.html