It can't be argued that we get more out burning hydrogen than the work it takes to produce it.

Having a serious interest I have searched a lot of web sites.

What emerges is not a gain from burning the hydrogen/oxgen mixture from the electrolysis but
better gas burning and timing.

The gain is from better use of the gas itself.
IT is pointed out that injection systems may negate any gain unless they are changed too.
That I can understand so this may be a real gain from better fuel efficiency.

I wait for report s from those experimenting.