I now realize that full size diesels use a minimum of 3000psi to inject the fuel, however, if YS is sucessfully direct injecting fuel into their engines, I don't see why there could be much of a difference between a glow injection vs a diesel injection, unless YS is direct injecting the glow fuel when the engine isn't at top dead center? How serious can preignition be while an engine is still running so long as it isn't having detonation?

Anybody know how a YS injector works?