Their truck is a 4.7 Liter V/8. That engine will draw in 2.35 Liters of air each revolution. At a normal idle speed of 700 RPM's the engine will draw in 1645 liters of air in. They would need that Hydrogen/Air mixture to contain 1579.2 liters of atmosphere and 65.8 liters of pure Hydrogen to even get it to ignite and burn. That does not take in to count the energy losses with heat and friction in the motor. Their claimed 55 LPM HHO contains 36.7 liters of Hydrogen or only about half enough to even ignite let alone do any useful work.

Question.....out of curiosity what if no atmosphere is taken in and its just hydroxy? No nitrogen no CO2 just the hydrogen and oxygen made by the cell?
http://www.youtube.com/watch?v=b1MeR4My6XA
Ik that the way the cell is designed it needs more power then their vehicle puts out but is there any sense behind using a vaccum regulator and a vapor carb? Is it possiable to do this using a different, more efficient cell? I'm only fifteen and ive been looking into hho for a while and i keep reading but i need some help figuring out some things like this