I am trying to understand the typical timing advance curve of a propane turbo engine of a standard boost say 6 psi and standard turbo compresion ratio of 7.7:1
I do not really have much idea of even a curve of gasoline turbo
I may be confused even more by more cars initial base timing set at 20 deg BTDC. It is knock sensor controlled and I suspect as soon as any boost comes on the unit drops it quite signicantly
can anyone explain or link me to any graphs please
ta, Jono