Folks when you get all done with this piston engine stuff (no compressors or turbines), could you do a google-idiot style translation into turbine engines for the casual thread reader.
Maybe a distinction could then be made between TIT (Turbine Inlet Temperature), EGT (Turbine Exhaust Gas temperature) out the tailpipe and pressure out of the compressor,
I doubt that timing enters into this for a gas turbine since the flowrate is constant and so is the fuel and ignition.
The casual reader would appreciate simple comparisons with everyday effects e.g. welding torches, bunsen burners, baloons, home oil heaters etc.