If you really want to make a more effecient engine with water just use WATER INJECTION. I'm not sure if this will work on an NA engine but a few of my friends use this for Drag Racing with their turbocharged 4g63 engines. It will ALLOW you to make more HP by reducing knock and allow you to advance the timing, but i'm not sure if you can use it to make the engine more fuel effecient. Just like reflashing turbocharged engines to run on E85 will allow you to up the boost on the turbo and make even more power (but takes more fuel). The problem with doing this is your engine and its tune becomes dependent and if you try to run on regular fuel without a re-tune you will blow your engine.
Note: You MUST reflash and or retune your ECU for this to work.
I posed the question; Is HHO the way to go? Now that I picked up my new car, I plan to do a home made HHO generator. Yes kits are expensive, so I'll do a PVC jug, with Hoax plates, better known as the 8 plate Home Depot stainless steel wall plates to sepparate the H and O in water. I got most of my information from Utube, Hoax or Sir Hoax used 8 plates and produced 2 litres of HHO a minute without a PWM. You can see the original 1979 home movies of Miller running a VW sand rail exclusively on HHO. Like I have said, HHO is a suppliment, it aids combustion, increases flame speed and scavanging fuel droplets from the combustion process. There is a video on Utube that shows the combustion cycle of a Taurus V6, someone stuck a micro camera in the side of the combustion chamber. Its a dirty, impercise process, you can see the flame dancing around and large unburned droplets swirling around and then blowing out the exhaust. In theory the HHO should scavenge up that unburned fuel and therby creating power by improving the combustion process.
Another one of my favorites is the Hot Air Engine, suggested by Smokey Yunick and now called the HCCI process or Homogenous Burn Cycle, its a take on super heating fuel to make it a gas and getting rid of the droplet effect and creating a super efficient combustion process. Look up Geet and Pantone, these are names associated with these processes.
For more nostalgia, look up Wick Carburation, this is the sort of inspiration that lead to getting fuel vapor rather than a fine mist into an engine. The carburator and the fuel injector can only get fuel droplets so small, its up to new technology to make it more efficient.
When I build my HHO generator, I will do a step by step build process and thoughrough testing and hopefully we can put the HHO controversy to sleep.
I mean look at it this way, I was ready to plunk down 100 bucks for those Pulse Plugs, then one guy here bought them and he got worse mileage.
Heaven Net, please be sure to do accurate experiments before declaring your own success. To date, we have not seen good data from people claiming success with HHO. We've seen good data on failed attempts, but the successes rarely even try to claim to have real data, let alone provide any credibility.
One thing we do support here is never buying HHO products; due to the nature of that industry, it is a bad idea to support it and any HHO work should always be DIY using parts bought from companies not in that industry.
By the way, we're unlikely to be impressed by a baseline gaslog that isn't beating the EPA score at least by a little... it points towards a very out of tune vehicle, or careless gas thirsty driving. Just 'coz going from 12mpg to 18mpg isn't impressive if it's what the vehicle was supposed to be doing in the first place....
.... that's my excuse for not trying it yet, I never seem to reach a state where my vehicles are running 100% perfect, there's always some little intermittent problem, or suspicion of some part being "due".
I remember The RoadWarrior..To understand who he was, you have to go back to another time..the world was powered by the black fuel & the desert sprouted great cities..Gone now, swept away..two mighty warrior tribes went to war & touched off a blaze which engulfed them all. Without fuel, they were nothing..thundering machines sputtered & stopped..Only those mobile enough to scavenge, brutal enough to pillage would survive. The gangs took over the highways, ready to wage war for a tank of juice