The adiabatic temperature peak is stochiometric. However dynamics can shift the peak temperature lean or rich. However, SpaceX is also tuning for engine temper

The adiabatic temperature peak is stochiometric. However dynamics can shift the peak temperature lean or rich. However, SpaceX is also tuning for engine temperature control and specific impulse. Raptor runs ~3.55 lox/methane (very rich), 4.0 is stoich. https://www.researchgate.net/publication/255632584_On_the_Off-Stoichiometric_Peaking_of_Adiabatic_Flame_Temperature https://www.researchgate.net/publication/255632584_On_the_Of...