Long time listener, first time poster...

So, I've been experimenting with a number of configurations, cell (plate pair) quantities and sizes, and electrolyte concentrations and I think I've got a workable set-up.

Before I get into the as-built set-up, I had a couple of assumptions and theories to work from - all based on a number of sources (this forum included):

1. HHO production is directly related to Amperage.

a. More Amps = More HHO

b. Fewer Ohms = More Amps (at a constant voltage)

See Ohms law
c. e.g., lower resistance = raise amperage = increase HHO production

2. Relatively high cell resistance, when placed in parallel, will produce an exponentially lower total resistance value (I'll get into this in a bit)

3. Cell surface area is bell-curved to HHO production.

a. At a constant voltage, calculate 0.5 Amps per sq inch of surface area *up to about 14 sq inches (per plate) at 13.55 VDC

A 3" X 5" (less the area of the holes and other covered areas) per steel plate is about the top-end in my experience.

Ok, so what I've done is build 3 distinct cell sets:

(2) 3 cell sets - 6 total plates per cell in series

(1) 2 cell set - 4 total plates in series

The cells are then placed parallel to each other in the same electrolyte container: 3 cell - 2 cell - 3 cell

Iâ€™ll up the drawings and photos/vids once Iâ€™ve finally quit fussing with the system. This is the 3rd prototype (a 3-1-3 configuration)

Now the math... Each 3 cell set has a total resistance (RT) of 1.98 Ohms (this equates to about 0.66 Ohms per cell (R1 + R2 + R3 = RT)

The 2 cell set has a total resistance (RT) of 1.32 Ohms (R1 + R2 = RT)

Now, each of these cell sets were placed in parallel with the others to produce an RT value of 0.55 Ohms

1/R1 + 1/R2 + 1/R3 = 1/RT

1/1.98 + 1/1.32+ 1/1.98 = 1/1.8 = 0.55 Ohms

Note that resistance values are directly proportional to electrolyte concentration. I use 1/2 teaspoon of SOH per 1 1/2 quarts (

6 cups) distilled water. Also note that I need to reduce voltage per cell slightly to reduce the heat produced when it's running.

At a constant 13.55 VDC and this RT, I draw about 24-25 Amps max

In this configuration, I get about 1 Liter per minute (LPM) production cold, about 1.8 LPM at about 120F. It takes about 15 minutes to get to temp and it WILL go as high as 200F (I shut it down when it gets this high). I'm designing a thermostat controlled cooling system to keep from boiling off the electrolyte.

Iâ€™ve installed the prototype in my â€™04 Mustang with a 30 Amp rated

Lawton PWM and the

deluxe Dual EFIE on the inboard O2 sensors, and did a little fiddling with the

Engine Coolant Temperature sensor. The jury is still out but it looks like Iâ€™ve got an increase of about 2.5 MPG. Not too shabby for a 4.6 liter engine.

Soâ€¦ a success? Well, Iâ€™ve managed to keep from blowing up the garage or destroying the engine and Iâ€™ve only had one fuse melt-down on meâ€¦ Iâ€™d call that successful.