I support the idea that fuel repacement can be done. the way i see it, most of us will have fuel injected vehicles so the 2 ways of achieving the goal would me: a hybrid of petroleum/gasoline and hho or 100% water/hho.
Because this is going to take some time to achieve, the problem i see is the hybrid mixing of petroleum and hho particularly with fuel injected vehicles because fuel injected vehicles to my understanding so far limit the amount of variation of fuel consumption to the map and sensors that ultimately control the injector pulsewidth.
For a hybrid install on a fuel injected vehicle, petrol / gasoline consumption reduction has to come from : change in driver behaviour pattern, altering injector pulse width, engine timing, increased combustion efficiency, and importantly engine lubrication.
As i explained elsewhere i went to a diesel oil spark rated in my vehixle because under friction testing the particular brand had the highest film strength(ability to keep 2 surfaces apart) and the powerup additive in the oil further reduces any friction and ultrasonic friction, add it to the fuel for upper cylinder lubrication also makes a difference.!
so what is being aimed for? I want a way to measure the vehicles sensors in real time and log it, add hho and measure, this then will tell me what the sensors are doing otherwise we are guessing and measuring only by driving and fuel cost is expensive testing. If theres a sensor change then technically the signals to the ecu must be changed. My current project under construction is to use an arduino board to datalog the sensors, the digital pins can interface with a obd2 interface board to interrogate the ecu live time to get some data, the analog pins can be used to measure injector pulsewidths and any other sensor not picked up in the obd2 stream.
parts used:
OBD-II UART - great board because it does all useful protocols:
http://www.sparkfun.com/products/9555TFT lcd screen with microsd card slot
http://www.ladyada.net/products/22tftbreakout/arduino uno board from:
http://www.freetronics.com/power supply regulator to power the uno:
http://www.freetronics.com/products/poe-power-regulator-28vthe hard part now is the programming!!!
i think a decision needs to be made. If youre aiming to have a cell set be the fuel supply, will it be a supplementary supply to existing fuel or a 100% fuel supply OR will the method be to use injectors and bypass the cell idea altogether.?