So explain how H injection doesn't work again?

[GasSavers_RoadWarrior]

Increasing engine load by X percent does not necessarily increase fuel consumption by X percent. See the BSFC graphs that are floating round. So, you can get 3KW more out of a motor, for less than 3KW more gasoline burned, in some cases a lot less, then even with conversion inefficiency, you're at break-even with the energy in the HHO... however, that's not all, because the thermodynamic efficiency of burning hydrogen is DRASTICALLY better than the thermodynamic efficiency of burning gas, your HHO is worth twice it's equivalent in gasoline, because you don't get only 25% of it's energy as power, like you do for gas, it's more like 50%. Add to that that H2 injection can modify the lean limit of gasoline combustion from around 16:1 to as high as 26:1 and you can also burn a lot less gasoline for the same RPM... it makes the gasoline burn better than 25% efficient too... provided it's all tuned in and compensated for.

So you can divert 10% of output into HHO production which makes 5% of the total gas used, but to get the extra 10% because BFSC typically improves with load, you only have to spend 2% more gas. So the HHO "cost" half it's heating value in gasoline, then you burn it at double the efficiency in the motor, now it's 4x the actual extra gas used, then you can lean back your fuelling by a third, as well as the gasoline you don't need to burn that the HHO at 4x the output displaces....

This is actually scavenging "waste" heat, but it's doing it inside the motor, best place of all to do it. It's all a numbers game with the thermodynamics made possible by the fact that H2 has a humungous specific heat capacity relative to it's combustion product. 7:1 whereas with gas it's around 2-3:1 This means that the combustion product cannot possibly absorb much heat at all from the combustion process and must expand instead. Expansion is good, expansion is what we want, heat must be got rid of, expansion moves the pistons, so we get over double the expansion out of burning H2 as we get from burning gasoline, and less heat wasted. Making the gasoline flame front burn faster is another thermodynamic "heat scavenging" benefit, because it allows less time for a slow heat soak into the walls of the chamber and piston as the gas lazily nudges at the piston, more gasoline energy goes into combustion product expansion and pressure when the flame front is faster and less goes into the coolant.

It's virtually all about the thermodynamic inefficiency of gasoline as a fuel, there's no free energy, it's a method to take the energy that's there, re-apply it and make it push pistons and turn wheels instead of heating air and exhaust gases. Take away the gasoline and you've got nothing, no car that runs on water alone, you're scavenging energy big time, but not making it.