Hi All, i'm at phase 1 with my 7 (IO-375/Hartzell CS) that is equipped with two electronic ignitions. Lately i started to test LOP-operation and the entire detonation topic came up, so here's one of the questions i have:
if you reduce RPM (with the old magnetos) the pressure peaks inside the cylinders increase and move closer to TDC which results in an decreased safety margin in regard to detonation. i hope i got that right.
but if your lycoming is equipped with EI, lowering the RPM should result in a ignition timing closer to TDC and therefore the combustion event is moved to the right, which compensates the effect of reduced RPM...?
to sum it up: as long as you don't choose agressive timing, EI in general reduces the likelihood of detonation?
Thanks
Kay
if you reduce RPM (with the old magnetos) the pressure peaks inside the cylinders increase and move closer to TDC which results in an decreased safety margin in regard to detonation. i hope i got that right.
but if your lycoming is equipped with EI, lowering the RPM should result in a ignition timing closer to TDC and therefore the combustion event is moved to the right, which compensates the effect of reduced RPM...?
to sum it up: as long as you don't choose agressive timing, EI in general reduces the likelihood of detonation?
Thanks
Kay