[Map40]

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[Wheelin98TJ]

Originally Posted by Map40

...The third run, I got 29MPG in half tank.....

Is this estimated or calculated?

Was it a half tank according to the gauge or according to how many gallons it took you to fill it back up?

[Map40]

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[FLATFENDER54]

I dont trust the scanguage for mileage or your odometer readings at all since you dont have the correct speedo gear. I also dont trust the 1/2 tank measuring. You need to run several tanks before you can come to us with your results....................that is after you get the correct speedometer gear. Im not trying be an *** and I really hope you are getting 29 mpg by the way

[Map40]

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[Map40]

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[COWBOYJEEP]

Thanks am now following this thread as well as Kevin R's . Please keep posting . Good luck John

[Map40]

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[FLATFENDER54]

So on one tank you increased mpg by 40 percent? Or at certain times it increased 40 percent?

[Unlimited04]

post a picture of your setup.

how many gallons of water do you use per tank of gas?

if you do the stoichiometric equations to run a 4.0L engine fully on H2, with regard to extracting hydrogen from water, you'd need approx. twice the volume of water as you do gasoline to keep a 14.7:1 fuel ratio, but hydrogen requires a ~34:1 ratio
http://www.jeepforum.com/forum/5299384-post149.html

[jgorm]

Originally Posted by Unlimited04

if you do the stoichiometric equations to run a 4.0L engine fully on H2, with regard to extracting hydrogen from water, you'd need approx. twice the volume of water as you do gasoline to keep a 14.7:1 fuel ratio, but hydrogen requires a ~34:1 ratio
http://www.jeepforum.com/forum/5299384-post149.html

Not quite. When liquid turns to gas it normally expands to about 24x its volume. Also remember that the air fuel ratios that i quoted in your link are for regular air, and not for pure oxygen. For a good scientific test we need to see 3 tanks mpg (include indicated miles, actual miles, and gas volume from the pump) without the HHO, then 3 full tanks while using the HHO. I can analyze the data for statistical significance and if its not significant you would need to run more tanks. My scan gauge can be off by a gallon or 2 on each fillup so you should not use the SG for fuel volume. The miles should be accurate if it was calibrated to the GPS.

[msavard]

Bookmarking this one.

More details about the setup and could you post your raw data please?

[Map40]

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[Unlimited04]

For those of you without calculators:

Originally Posted by Map40

No HHO driving carefully, posted speeds, TPS at 30%
199 miles, 10.2 galons = 19.5 mpg
201 miles, 10.5 galons = 19.1 mpg
198 miles, 10.1 galons = 19.6 mpg
This are unadjusted mullage numbers (as I will keep them that way, it would be good enough for comparison purposes)
With HHO same driving
199 miles, 8.2 galons = 24.2 mpg
200 miles, 7.8 galons= 25.6 mpg
190 miles, 9.2 galons * (I was running out of water in the unit). = 20.6 mpg

[Chris_]

How are you avoiding throwing a CEL? Are you running EFIE?