HHO Modifications???

[Grandavi]

Just curious.. been studying GEET.nl and other HHO mods for vehicles and it looks very promising. Has anyone ever done a HHO mod to a MKIII turbo?

The only problem I can see would be the O2 sensor misreading the lack of contaminants or w/e and the fuel mixture becoming overly rich... (which could be worked around)

I am thinking quite seriously about trying this out (think it would only cost 50-100 to implement) as it supposedly increases fuel economy, power and helps the engine run cooler (plus.. eliminates the need for the cat as well).

Thoughts??

[Grandavi]

A bit surprised nobody has a comment on this

It all looks like a good idea, but I think that without a modifed EFI sensor it wouldnt work correctly. Time for more research in alternative areas.. if I find anything "post-worthy" I will put it here in case anyone has an interest in it.

[mirage83]

Originally Posted by Grandavi

Thoughts??

I think I'm going to sit back and wait to see how your experiment works out. Sounds interesting in any case.

[chaos99]

I was expirmenting with this on a 4 banger saturn, couldn't get quite enough hho gas to make a difference on a 4 cyl. there is alot of info here:
http://www.smacksboosters.110mb.com/

[btwilson86]

With the system I had made, I was producing quite a bit of HHO gas... However I had cooling problems with my system, and have since abandoned the idea.

The unit I designed was of an alternating plate design, drawing a current of 40-50 amps, with the water mix reaching an automatically maintained temperature of 165 degrees. On a bench test, I was able to consistently produce large amounts of gas, had an electric pump automatically switch on to cycle the water mix out of the unit and through a universal oil cooler to cool it down. This worked great on the bench, however the unit failed in all real world road tests. The pump would not switch on soon enough, thus allowing the mix to heat up too much, resulting in a large current draw blowing the safety fuse. I believe the reason for this was because I could not find a suitable thermoswitch to cycle on the pump, as the one I was using was a surface-mounted one off of a water heater. I would assume a thermoswitch that was in contact with the water would be much more effective, and likely result in the proper operation of the system.

Keep in mind HHO gas is VERY flammable, as I witnessed first hand in my safety tests. Every time I ignited the vapors there was an almost instant explosion up to the safety devices I had in place. My first unit exploded in it's first ignition test, would hate to see what would have happened if it was in a car at the time...

One word of advice, I noticed that the "flow-through" systems seem to be much safer and efficient. This system utilizes a vacuum line before the throttle body as well as one after it, allowing the engine to suck air through the unit and into the combustion chamber. This way you don't have to rely on the build up of HHO gas and pressure to force itself into the engine.

If you'd like more info on my efforts in HHO units, let me know. I feel like I've already made too long of a post on this thread, haha...

[zanewa1990]

to make this work not hard had on a old carby Subaru liberty but to make work on efi u need to make something that will move the 02 sensor out about a inch plus if you have a chlorinator cell from a pool chlorinator you can just use one of those as you hh0 cell should produce ample amounts of gas

[seth959ci]

i played for this a few years ago.. abandoned after i couldnt afford the EFIE controller( O2 sensor controller that was 60 bucks and i was a broke highschool kid lol).. i was tinkering with a 1994 dodge spirit.. also put one on an 89 ranger and it got 40 mpg for a while.. have been debating getting back into it due to fear of really high gas prices. also i used a spark plug anti-fouler to bring out the o2 sensor.

[Grandavi]

Good to hear people have actually looked at it. I am considering doing it on my 1988 GMC Sierra 2500 (350 ci). It runs propane/gas currently, but thinking about mapping out a HHO conversion that would allow me to just switch it on or off.

Reading about flammability, I thought that the HHO gas was fairly stable unless exposed to external spark or flame. I also wasn't thinking of a pump to push the HHO, was more in thinking about having it siphoned out via engine vacuum. That would take a bit more to regulate though..

After looking for a long time at doing it to the Supra, there are too many little things that can get messed up so I will try it in baby steps. Should be doable.. just have to find the correct path.