Trying to achieve 100 MPG

[ToSloTrk]

If someone gets better than 70 mpg without coasting that would be impressive.I just don't see it happening without doing a gas/electric hybrid.

[Gforcefd]

I always wondered about someone using one of those small diesel engines you can find in like a rotortiller, to recharge the batteries on a electric motor driven car. You could probably fit the small one in the back, and enough batteries to make it work.

I was wondering, has anyone ever heard of a device that would sit inflow of the exhaust, and use the energy of the exhaust leaving the car, to spin a impeller(like a turbocharger) and the other end of the turbo would have magnets spinning inside a copper wire core (like a altenator), feeding this energy back up to batteries to drive a seperate electric motor? Would be alot of parts that could fail though I think.

[CharlieZ]

FWIW: Saw this on the news the other night. " Muscle Cars Meet Green Technology"

http://www.cbsnews.com/stories/2008/12/09/eveningnews/main4659069.shtml?tag=cbsBroadcasts;cbsBroadcastsContent

[elcamino1]

^^^Thats what Im talking about,good mpg's without loseing drivabilty.
Give me 50mpg but let me drive as I normaly do!

[rcottle]

What about 2 - 2 cylinder engine where they would be linked together for acceleration and then then 1 would shut off for highway cruising - ?????

[Kraig]

Heck I've gotten 52mpg on one of my tank fulls driving normally. What's the big deal? My best tank has been 56.7 mpg with some hypermiling. For 45,000 miles my average is over 50 mpg....my log is on Gassavers.org

[Pu241]

^^ A little easier in the flat area of the eastern shore than in the hills/mountains of Oh, PA,WV, or VA.
But, I too have reached 56+ MPG.
green-rich thinks he's going to reach 100 MPG with a festiva and HHO.

[elcamino1]

Heck I've gotten 52mpg on one of my tank fulls driving normally. What's the big deal? My best tank has been 56.7 mpg with some hypermiling. For 45,000 miles my average is over 50 mpg....my log is on Gassavers.org

Your normal and mine are probably different,I've never tryed to see just how many mpg's I can get from my car,I get in and drive!

[rcottle]

Heck I've gotten 52mpg on one of my tank fulls driving normally. What's the big deal? My best tank has been 56.7 mpg with some hypermiling. For 45,000 miles my average is over 50 mpg....my log is on Gassavers.org

What Type of tire are you running?
What do you have your engine timing set at?
What type of air filter?
Is there anything special about your car?

Is there anyone else out there with mpg higher than 50? Let us know the stats on your vehicle - maybe it will help in the Quest.......

[ohsoslow]

if you read into how the opel was made to get the milage it did you will se it was relativly simple.
the car was stripped of all excess weight, still close to the weight of a festy
they used super hard tires (lower rolling resistence) intresting post scrit to this is that many manufacturers are making tires with ultra low road resistance
there was no transmission it was a clutch driven chain to save weight and transmit power without sacraficing horsepower
a huge part of this is the opel was only driven to approx 30 mph
the biggest piece of the puzzle is how the fuel was treated, it was heated inside a super insulated fuel line and only fed to the motor as vapor. good for milage bad for power.
currently thee is a prius getting 110 mpg's do some research and check it out..
hopefully you guys get the hydrogen generators feeding piston motors to a exact science. the problem i have seen with them seems to be power consuptin versus hydrogen output. the other problem seems to be tuning. best of luck

[Kraig]

Stock 12" tires with 40 psi, cone air filter from the previous owner, I've never checked the ignition timing. I blocked the upper grille with white coroplast for winter driving and left it in this past summer with no over heating issues. I run 10W30 oil, one quart synthetic and the rest normal petroleum based oil. I do drive conservatively as I bought the Festiva for economy....if I feel the need for speed I have my turbocharged SVO Mustang...... I am thinking of some more aero mods as I would like to see some 60MPG tanks of gas....

[RRCMDRLEE]

a shop near me has tryed it on newer vehicles and found that the computer compensates for the reduction in fuel he thinks he would have better success on an engine w/o computer assisted maybe a carberator engine not fuel injected

[drddan]

Yes, carberators adapt to hydrogen really well. Not unheard of to increase mileage by 50% just adding the generators. F.I. engines need help as the computer will overide things. Sensors are the problem. They need to be "fooled" to get better mileage. Adding a HHO to F.I. without doing something about the sensors will add around 6%+ better mpg. Several sensors are involved. EX: Sensors in exhaust will read cooler using hydrogen and will add more gas to compensate. One guy just wrapped it in foil to keep the exhaust gas from directly flowing over it and it read the warmer temp from surrounding metal. Read more about HHO and there are like a bunch of supplemental articles for just dealing with and bypassing or modifing all the sensors on F.I.
From what i've researched, it takes more than 1 "mason jar" generator to achieve good mpg. 3-6 seems to really get it going.
So...one 40 mpg (carb)Festiva + hydrogen= 60mpg.
or...one 50mpg festiva + hydrogen=75 mpg, Add good driving technique and hypermiling, close to 100mpg is not unreasonable. BTW, there can be an increase in HP also, as hydro burns way more effcient than gas.

[FFW]

[Pu241]

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

drddan, HHO is at best bovine excrement!
At worst a waste of resource better used on something useful.
I will ask again of those touting the HHO banner show me the data!
None have come forward.

Feeding small amounts of hydrogen into a engine designed to burn hydrocarbons does not permit one to take advantage of the potential increase in combustion efficiency of hydrogen.
Especially, given the low energy density of hydrogen itself.