I'm not sure measuring would be complicated at all. If one had access to a dual spark plug engine; substitue a gauge in one plug hole; run the engine. It might not be that simple; maybe getting the right gauge; something fluid damped and three thousand psi; a gauge such as used to check the pressures on tractor hydraulics.
Originally Posted by homer52
this has been an interesting conversation so far, still haven't heard anything firm on what the pressures actually are. Measureing would have to be a bear.

Last edited by WillH; 01/21/2011 3:51 PM.