Hi, I am working on a school design team where we are building a small scale formula car. I am a member of the engine group, and am tasked with CALCULATING the minimum spark energy required to start combustion in our engine. I know there is an official term for this, (required spark energy?) but I can't bring it to mind right now. Basically does anybody know the calculations to get a ball park number for spark energy? I know the parameters will be cylinder pressure, air temperature, fuel type, RON, Humidity, cylinder temperature, A/F ratio, plug type/temperature, and spark gap among others. Even if your equations are fairly rough estimates I would at least like to hear what you have. I can't seem to find any sort of calculation regarding this at all on the internet. Thanks!