Sorry my english might not be really good because i'm autodidact. By the white stuff I meant the small bubbles... At the buggy first run demonstration you clearly see the water bath boiling very vigorously, not just small tiny bubbles...
I like ICEs since i was 10 years old, i use to dismount and mount it again... Now i got a better figure of its operation since i studied thermodynamics recently at the university and since today i know a lot about sensors and timing and synchronization mechanisms.
I never got any ICE at hands to play with hydrogen, but i read about a lot and saw many people doing it, so i know you don't really need lot of gas to run it lean, however as you just stated it will lack power because you are limited to the battery energy.
If i achieve my goal, to create all the control electronic metering mixing and injecting system will be really easy...
Since i could never generate as much gas as 60liter per minute or at least 30L yet with just few watts, I would not go to work on engines yet.. . _Because there will be even more problems to solve. Of course i would be able to try the gas processor, but that really is not my focus now.
I imagine that if you add some gasoline to the water will help you start the engine and also let you run partly on water, but what is the point if your consuming more energy to generate the gas than it is giving up inside the engine?
Thats why my focus is exclusively to generate loads of gas.