quick question...... how accurate in todys rotaries is howards thread about meth injection? and how does it work?

 

Quick answer....Pretty accurate. And "very well" thank you.
Seriously though, not that I'm an expert either, but HOW it works is pretty well covered in the stickys. And once you have some understanding of that, there's no reason to doubt it's accuracy when applied to rotaries. If ever there was an engine that can benefit from it, the forced induction/turbo-charged rotary would be it. Heat is the stressor. AI helps with that.