If you have the time, watch this:
That is just part 1, there are 9 or 10 parts to this.
They do run a small engine on hydrogen with no throttle body later on.
Here was my conclusion of what was claimed by the entire 10 episodes:
If you add some hydrogen, the gasoline would burn up completely much faster. Therefore:
You could set the timing on the engine much later, and not lose energy as the pressure increases on the compression stroke. (maybe due to lower bearing and friction loads?)
You could run much, much leaner mixtures than you could ever ignite with gasoline alone.
You could run a spark ignition engine with no intake throttle at all (like a diesel engine) and reduce pumping losses.
Now all of this sounds reasonable to me, but then again I did get a C in Internal Combustion Engines class ( I could not understand accent of the TA who was teaching it
)
If you watch this you will soon want the camera man to shut his yap, as well.
