Most cars on the road today operate by way of an internal combustion engine. While it is possible to operate a specific type of car with water, it is not currently possible to convert an internal combustion engine into a hydrogen engine. The two types of engines work so differently, I highly doubt we will ever be able to simply convert a standard car engine to run off water instead of fuel. The internal combustion engine ignites small amounts of fuel and the expansion of gases within the piston chamber forces the pistons to move and power the engine. A hydrogen fuel cell uses a type of membrane to generate and capture the energy in a chemical reaction. There is no ignition in a hydrogen fuel cell and the power is generated through a completely different process. A standard engine is simply too different to be converted into something which runs off of water. Right now, the most environmentally friendly conversion for an engine is to make the switch to biodiesel. Of course, this is typically only done on a diesel engine which most modern car engines are not. Converting a standard vehicle to run on water would require a complete overhaul and could not be accomplished with a do it yourself style kit.
HHO is H2O or water. Water can be separated by electrolysis and the hydrogen can then be used in a hydrogen fuel cell to run a car. Hydrogen is also found in hydrocarbons such as natural gas and by applying heat, the hydrogen can be separated and obtained for use in a fuel cell. When hydrogen is burned in an engine, it is practicallly pollution--free and releases water as its waste product. In the fuel cell, hydrogen and oxygen combine to produce electricity, heat and water. As long as hydrogen is continually supplied, the chemical energy is converted to electrical energy. The vehicle can store pure hydrogen gas or have a secondary fuel such as methanol or ethanol or natural gas which can be converted to hydrogen by a reformer. Since water is part of the water cycle, a continuous supply of water exists to obtain hydrogen gas for fuel cells, and the waste that a fuel cell produces is water, so that water returns back to the water cycle once again. The U.S. government is currently work on fuel cell vehicles to lessen our dependence on foreign oil, strengthen the economy, emit less pollutants and to make it more affordable for people to use in the future.
Is it possible to operate engine of car by such kind of kit (water kit) on 100% water, without mixture of any fuel?