Trying to achieve 100 MPG

[Pu241]

OK, drddan, me thinks I was a bit terse above and incorrect in the fact that we had some reliable data on using HHO.

http://www.fordfestiva.com/forums/showthread.php?t=16807

Yblock, was providing info as he was running.
He however, dropped off sometime ago, and our info remain incomplete.
His results were nothing like the claims of typical HHO supporters.
But something was going on.
I personally believe you have already touched on it.
Modifying the senors.
Specifically, the biasing the 02 sensor, moding other sensors may help as well.
But I do not believe the hydrogen in the quantities used makes the difference.
You would see the same change if you just moded the senors, no hydrogen needed.
However, it comes with a risk, increased average and peak combustion temps.
Which can, if allowed to go unmonitored/compensated for, will ruin an engine.

[MONSOON]

Well well well. I must say that at least this thread was dug up with a REAL contribution instead of the normal tripe that usually brings an old thread back to life.
Congratulations drddan!

[TominMO]

Off topic but kinda related:
If you wanted to get more power instead of better mileage, but have selectability for power/mileage:
for the O2 sensor, I wonder if you could not just install a rheostat inline, and dial up the amount of resistance to whatever you want from the driver's seat. More resistance = lower voltage reading = engine thinking it's running colder = more gas added, therefore more power. Dial the rheostat up for acceleration around town, like if you had to get to your jorb in a hurry, and back down for highway cruising. Would this work?

[FestYboy]

o2 doesn't sent temp readings Tom, the metals in the unit react with o2 and create a small voltage that is sent to the ecu. the o2 DOES need heat to opperate though (i believe upwards of 500*F). having a current limiter (rheostat) wouldn't affect the output enough to cause a change.

[TominMO]

o2 doesn't sent temp readings Tom, the metals in the unit react with o2 and create a small voltage that is sent to the ecu. the o2 DOES need heat to opperate though (i believe upwards of 500*F). having a current limiter (rheostat) wouldn't affect the output enough to cause a change.

That small voltage is what I was trying to influence. Wouldn't a dial rheostat let you dial down the voltage, therefore telling the computer to add more fuel, by dialing up the resistance?

Alternatively, you could have an A-B selector switch, wired so that side A would have a resistor (proper value TBD), and side B would be without one.

[FestYboy]

i think you'd be better off bypassing the o2 and using a regulated adjustable 1v referance to send to the ECM and then tie your o2 into a gauge so that you could monitor the changes made with the adjustable power supply.

[TominMO]

i think you'd be better off bypassing the o2 and using a regulated adjustable 1v referance to send to the ECM and then tie your o2 into a gauge so that you could monitor the changes made with the adjustable power supply.

Ooooh, very interesting!

[Pu241]

^^^ That and monitor EGT.
Plus mod the head to permit better heat removal and maybe add an oil cooler.
Would be better to go with ceramic coated pistons and valves.
Which could take the higher temps.
But that makes the experiment somewhat more expensive.

So biasing the O2 sensor, with EGT gages would be cheap and should prove out the theory.
Then we can "upgrade"/mod to improve even that.

[FestYboy]

yes... as for heat removal, that just takes some time with a die grinder to remove sharp edges and the step in the exhaust runner. then polish the chamber till you're blue in the face.

[scitzz]

I heard one physics professor put it like this....

You get half as far on the same amount of gas, by switching to hydrogen....

This is helpful how? When you figure in conversion costs, safe storage costs/transporting water costs, etc, you still lose.....

Yet, I hope peeps keep trying. even bad/no improvement is a result when it comes to testing...

[drddan]

Hey! Thanks for the award! Always wanted one of those! Well, I wanted to see if anyone was running HHO on their cars. I have heard both sides of the HHO debate and another reason I wanted a carbed festy. There are many sensors to mod on F.I. engines for HHO to give results, from what I have read. 4-6 sensors, depending on model year. 1-2 on carbs. Most add HHO thru breather after the sensor on the breather. (bypassing that sensor). I'm going to give it a try, after all a liitle mileage increase is better than none. If it works, i'll post results. (I'll start a NEW thread!)haha

[batstiva]

Batsiva, as you are substituting for the honorable Monsoon, please bestow the award!

Sorry, but MONSOON is right, having a life sucks. I see the award presentation went on without me.

[bravekozak]

Aptera

[kumalaba]

my ride gets over 100 mpg

[kumalaba]

i got 115 mpg on my last fill up!

















on my yanaha c3 scooter:p