My first tests where no good at all. All cars with O2-sensors will "say" to the computer or regulator, "My fuel mixture is to lean please give some more gasoline". It is the Oxygen in the HHO that causes this reaction. The result is the engine gets more gasoline and thats no saving at all. My car runs without HHO 1liter gasoline for 14.3 kilometers. With this configuration 1 liter gasoline for 10.2 kilometers. An EFI is needed!! Seems like the most simplest version on the market. I could pay with PayPal and the shipping costs are not that high. No overkill in functionality just what i want.
I installed the EFI in my car like this
(http://www.sumopaint.com/files/images800/hgeiixzifnoiirpe.jpg)
Mileage without hho unit 1 liter 14.3 kilometers
With HHO unit Output EFI 0.28volt 1liter gasoline 17.5 kilometers (47.05MPG)
With HHO unit Output EFI 0.42volt
1liter gasoline 22.1 kilometers (52.27MPG) +35.2%
With HHO unit Output EFI 0.51volt 1liter gasoline 17.5 kilometers (47.05MPG)
Cranking up the voltage output from the EFI will bounce on a limit what I understand out of these numbers. I go back to the 0.42 setting and put a little more to find the max. See what coming out this week when I do my normal 'go to work' trips.
Opel Astra 1.6i
build 1992
HHO 2 dry cells output 1 liter per minute
1 teaspoon Potassium Hydroxide
12 volt system, amperage draw around 20 to 25 amp
1 wire sensor
EFI reading with a standard multimeter between the green and the white wire from the EFI
Update 18 July 2010
I've got some bad results while driving for a few weeks now. I noticed the Potassium Hydroxide causes the mixture to be brown rust water
That is not going to happen with Sodium Hydroxide. I have to start again with new measurements and conditions. To be continued
