Hydrogen Generators on Volvos

[goldprospector]

Thanks for sharing!
How much of this do you think can be built on your own rather than buy a kit that's almost $300 ?

One of the best things that I found to use was a water filtration system that you can buy at most any home improvement warehouse. I have built several units. I have one on my 1995 Dodge ram 4X4 truck and I have built several others for friends.
I went to a local scrap yard and bought some small sheets of stainless steel for the electrodes and I cut them to fit in practically any size water filter unit. I do have them running into a secondary bubbler as a safety and just to see it work. The biggest safety feature needed is a "One way valve" on the exit side of your system prior to the entry of the intake. This is needed in case you may have some kind of backfire or other engine problem...because beleive me, you do NOT want the fire to get back to the bubbler or to the fuel cell. I had that happen in my very first trial...I was lucky, it was only a smal explosion.
You will definitely have to manipulate the computer to trick it into thinking that the fuel mix is correct. I have a single wire O2 sensor (the easiest). I measured the resistance of the meter during normal operating condition after fully warmed up. I added a resistor loop to ground that told my computer it was reading the same thing all of the time. You can buy pre-made units for practically any type of O2 sensor that you can adjust using a dial to get it to meet your cars best needs.

I installed the unit with am amp meter so I could monitor the draw on the system and I regularly pull 15 amps.

My unit makes 2 liters of hydrogen gas in 32 seconds after it has warmed up.
My Dodge truck got 17 mpg with a 318 cu.in. V8 with a tuned port EFI from the factory. After installing and before manipulating the O2 sensor, I got 14 mpg...My computer thought I was running lean and it dumped in more gas.

After tricking the computer into thinking it was reading a roughly aconstant 14% O2, the mpg went up to 29 mpg and the performance is way better than factory. The engine does run hotter than factory...it is one side note that most people will not mention...I had a easy fix on my truck, the factory thermostat is a 210 degree unit, I put in a 190 degree and drilled a 1/4" hole in the edge of it to slightly increase water flow. Now it runs at a constant 215 degrees where it has always ran at 210 every since it was new. I don't think 5 degrees with hurt anything.

This truck had 135k miles on it when I put the unit on and it has been running the hydrogen cell since September 2008. I like it and so does my wallet.

[jaluhn]

I shouldn't do this, but it's way too temping.... must stir the pot.

Can anyone explain to me how adding a tiny amount of hydrogen is going to make sure a huge difference?

Let explain why it makes no sense to me.... let's say your volvo (with a 2.5L engine) is cruising at 2000 rpm going down the freeway. Theoretically, that engine is taking in 2500L of air per minute. (assuming perfect conditions, more realistic is ~85% volumetric efficiency, so say 2300 LPM (liters per minute)) Now, that's full throttle, so say about 1/4 throttle, you're still looking at at least 500 LPM. How does 1-2 LPM of HHO gas help? Even 5 LPM is only 1%.

I just don't see how adding an extra 1% HHO gas will account for a 25+% difference in gas mileage.

I also assume it was occurred to some of you that spoofing the computer by messing with the oxygen sensor is probably not the best idea. There is a reason for that feedback system. When you try to set a constant oxygen sensor value, (which by the way acts a voltage source with a voltage output proportional to the O2 difference between the atmosphere and the exhaust, so checking it's resistance is utterly pointless) you're eliminating a fairly important part of the system. From what I can tell, it's erroring to the lean side too, which is not good. Can you say burnt valves / pistons? That's why it gets such good gas mileage, but just wait untill you have to rebuilt the engine.

[GrumpyOldMan]

Very close to my thoughts.
As soon as people say they are playing with the o2 sensor, credability goes south.

I want to hear from those that have nothing more than the 'hydrogen' cell connected.

I want to believe, but I don't.

[nisan17]

I want to post a thread, but figured to just add to existing posts. I bought a nice Hydrogen Cell Kit back in 2008 and without messing with my 02 sensor or anything else I've gained 22% in fuel mileage, which I've documented in black and white.

I'm selling the system as I've given the 86 740 to my daughter and she has no clue how to maintain it. Plus she doesn't travel nearly as much as I do. I've now gone to a platinum injection system, which take 10 min to install and a three month money back guarantee. Proven and government studies show a 22% gain in fuel economy.