We beat this to death on rec.models.rc.air between 1996 and 2003 or so. It is a shame that most folks are not aware of the fact that those old archives are still available for downloading.

I can't remember the gentleman's name, but we had a design engineer for two-strokes that retired from a large outboard motor manufacturer that was on quite regular. He could tell you the true skinny on such matters, when he was in the mood. His opinions were based upon facts with lots of empirical testing using the absolute best equipment and labs in the world. I wish he would come on board here and spread his wisdom and experience.


Ed Cregger