You see, the old coots on this board can still surprise you a little eh?
I went into this area pretty deep. It was a dark time in my life and I was grasping for anyhting to hold my interest and keepp me from the depths of depression. I looked at all the different options. Stan Meyer had it. He even got to the point where he had packaged up the system into what was effectively a "fuel injector/ spark plug. ie he broke the H2O bond and then pulsed energy at it to make it revert to water and release the energy in doing so... the patents are out there for general viewing.
However, from what I can gather, and from other "source" reading. Stans princple was very basic. and you can try it too on a lab bench with a signal generator, amplifier and a glass of water..... (and a tuned circuit to "aid" the process and reduce the amount of power required to do so

(yeah that was a subtle hint.. you can brute force anything but its the tuned circuit that reduces the power requirements )
And as it is open source information, here it is.
Stan did not make HOO. He stretched the covalent bonds of the H2O molecule until the individual atoms separated from each other. So, he got a gas mixture in exactly the right volume to recombine into water. How did he do it?
Well, it worked on the principle of an increasing, oscilalting waveform that would stretch the bond further and further until it released. That, my firends, is a saw tooth ramp waveform. Any good signal generator can produce an infinately variable set of these. Now you are gonna ask me what frequency and amplitude it needs to be right? That... my friends.... is the hard yards. but.... there is plenty of science out there and definately information buried within keelynet to give you a baseline. I stumbled on a few things of note when I spent some downtime looking into this.
The amplitude does not need to out of this world IF you use a tuned ciruit. the tuned circuit will aid the effectiveness of the ramp waveform and mean that much less power is being consumed.
There was a medical doctor playing with frequency use to sanitize water. one particular frequency had a rather abrupt result. ie the immediate change of the water into H and O2 in a rather hurried fashion apparently resulting in a hole the same diameter as the beaker in the ceiling panels....., . The frequncy for the actual experiment setup was published, but NOT under this science space. (don't ask me to dredge it up please.. its all gone waaay back off one of my early pc's)
The US navy has a patent for self warming deep water dive suits.. these suits have a biscuit layer of .... iron and magnesium (both particles have a specific size...) and when immersed in SEA water, lo and behold... they heat up. The challenge was... they had a bit of an issue with a side product.... yes, you guessed it... Hydrogen and oxygen were given off. the iron and magnesium particle created micro batteries with the sea water. heat was a byproduct.
The patent also gives graphs of the hydroxy "blow off" for specific quantities.... I played the idea over of hydrogen/oxygen generation on demand from wet cells where you use biscuits of FeMg immersed in a tank, fill it up wth sea water, control gas collection by water level. Why not salt infused water? because, in establishing a return to base option for this, where the used biscuits come back to be recycled, the contents in the cell would also carry many very rare elements from the sea water reduction that could quite potentially be extracted and benefit the world... and my pocket....
Now go and chew over this for a while. Since my eldest daughter has just completed a double major in Science and Geology, and is now doing her Honours and Masters in the next two years, after which she has been invited to an overseas University for a fully paid doctorate.... I might let her loose in her lab.... tickle her "exploratory scientific bug"... see if it bites....
And if you guys have any issues with any of these concepts. then just take a magnetron out of a microwave, mount it onto a bolt in tube that screws into the spark plug hole, trigger it to fire at waaay below tdc, use the carb to spray water into the chamber.... I have seen a videoof a motor mower powered by water that works using this...... I bet its on youtube now.....Like I said, you can brute force anything to work....