Okay, I once asked a question about the limits of an engine based on boost and temperature. Now I want to know if anyone knows the limits of the engine in terms of cylinder pressure. In other words, if I know the temperature and pressure of the charge and know the compression and combustion figures, how do I know if the engine can handle the pressure that results during combustions. I know there are products to strength the engine, so how does one know how much pressure is safe with a given set of mods?