I decided against using water induction (water being sucked into the intake of the engine) and opted for water injection (water being forced / pushed into the intake of the engine) because after doing a lot of research I saw that the most efficient way of giving the engine more power from water would be with a precise mixture of water/fuel (the water/fuel ratio) between 10% to 30%. The most efficient mixture will depend on a lot of factors (intake, exhaust, engine heat range, engine temperature, engine efficiency, rpm), so I will have to run experiments and models to determine what water fuel ratio is optimal. If I am going to have a constant water/fuel ratio (like the air/fuel ratio of 14.7) for maximum efficiency then I will need to match the water injection to RPM.
The first experiment I did was to determine how much water injection could cool hot air. I used a 10 inch long, 2 inch wide tube with air being blown into it at a rate of 0.66 pph (lbs per hour, wait...what? you didn't know air has weight? yup, 14.7 PSI) and a temperature of 248° F. The water I used was cooled to 77° F and injected from a high mist nozzle with the use of a 100 PSI electric water pump. I recorded results with a digital lab grade thermometer. I was able to set three different water flow rates by varying the pressure of water being pumped out of the electric water pump, here is the data I recorded: