I'm not certain yet if this works yet or not, but I have built a HHO generator we are experimenting with and have produced a signifigant volume of HHO but have not gotten it injected into an engine yet to verify performance. We have tested the HHO produced and found it to be extremely explosive!!! Within the next few weeks I will have a spark arrestor in place and try injecting it into the air intake. Once that happens I will have a better answer.