Water expands 6x more than air when compressed but without the added heat. When a water mist is added to the incoming air charge, it adds power because once the piston comes up on compression, the water mist filled air tries harder to expand so on the exhaust stroke, it pushes the piston down with more force...all the while keeping detonation in check by maintaining a cool combustion chamber temp. Unless you have tried to build and tune a vehicle to run really lean by utilizing a large amount (8-10 liters per minute of hydroxy gas) it's hard to grasp the concept of what hydrogen is capable of. I understand what is needed, so modifying my TPI motor is the most important aspect of where I am at with it. There is actually a lot of little things to think about but the two most important things imo to think about is that 1.)Hydrogen is 8x more combustable than petrol gasoline and 2.)Flammability rate is far broader than petrol gasoline. Now, knowing that anything organic (ie naturally occuring compounds or elements) once converted to near plasma state will combust and thus be used as a fuel (this is fact, not wishful thinking), then one can begin to see how hydroxy can play a part in fuel mileage and performance. I have less time to talk about it vs. building it and experimenting with it. I'm building my water fuel cell right now but the cost of 316 type stainless sheets ain't cheap. What I am most interested in is how to modify the various computer sensor inputs so I can lean the fuel out...actually producing the gas isn't hard...the hard part is making your computer learn the new system. I agree that most people are skeptical about it to the point of being convinced it can't work but the weird thing is the same people who say it can't be done haven't ever tried themselves...and thats because this is all based on real chemistry/electrical data. Nobody can believe it until they see it so that is what I am set out to do....I'm clearly not the first one to do it but since I don't personally know anyone who has, my only option is to build it and see what I end up with. It's weird where these things can take you...I spent an hour on the phone with a guy in Ohio just talking about why a pulsing AC waveform is more efficient than a DC direct current waveform with regards to excessive amp draw boiling water away instead of creating usable gas....weird stuff...and stuff I never knew about.