Isn't it a journey of exploration? Looking for the elusive "economy", in a sea of conflicting information and endless variables!
I'm new here and I am in Australia, land of long distances and mostly flat roads.
Like Trev, we have a Lada with a carburetted engine. To get to town to shop is 120 km. The Lada is my partners, (female) and I have no idea how much fuel it uses because she never fills it, always buying it 20 litres at a time. Why? Who knows?
Anyway, I would like to try HHO to see if I can get a result on this Russian car because I have a Russian, military truck in europe that we travel in, it uses between 23 and 30 litres for 100km. (petrol)
The motor is in good condition (23,000 km) but is low compression (6.8-1). It is a 4.2L, V/8 .
My Idea is to see what happens with the Lada and scale it up for the truck.The first question is to Trev. Whats the chance that you could give me the details of your complete setup, so I gan see if it works for us?
I'll get the exact fuel consumption over about 270 km (to town and back), then put the HHO to work and see how it goes!
Now here is my input.
Everywhere I have looked, people are modifying computer controlled cars that can reduce the quantity of fuel injected to optimize the effects of the HHO.
With a non computerised engine with a carburettor, the only simple change you can make is to ignition timing.
To change the amount of fuel (petrol) sucked in, you need to change the jetting of the carb.
Screwing in the idle mixture screw changes the idle only, nothing else.
So, what is happening with Trevs Lada? How does he get more km from his litre? Is it going faster and stronger with a smaller throttle opening? (less air and fuel?)
We need to know the answer to this question to get results with other engines.
If you want to see what happens if you change the amount of fuel sucked in, you could change the carburettor to a constant depression carb with adjustable metering. With this carb it is possible to hand adjust the fuel /air mixture throughout the full range. Old Jaguars, triumphs, some aircraft engines, holden Toranas and others had them on. Range Rovers had 2 of them. Stromberg and Zenith made them.
If your generator is producing a constant amount of HHO and it is fed into the intake air, then the percentage of HHO to air is going to increase at lower speeds(smaller throttle openings) and be less at higher speeds.
Perhaps better economy can be obtained by matching the HHo to the throttle openings to obtain a constant HHO/petrol/air mixture.
I know this is the RESULTS thread, I have written here in the hope that I might help you get the results you are seeking and get some results myself.
(08-18-2012 07:37 AM)mike Wrote: Ok, I see.
In that case, retard your timing a little bit, and tighten your carb's idle screw a bit.