So my uncle's brother increased his fuel economy by 150 miles per tank by using hydrogen injection through electrolysis. Also allowed him to run more boost without risk of detonation. His afr is ridiculously lean. Simple to make too. I'm looking into it and after seeing how many prototypes he had I have a fairly good idea of how to try it.

Wondering if anyone else has heard of this?

I might just do a custom meth kit but I want to try this first since meth won't help mpg.

However I got 402 miles on my tank today doing 95% highway from RI to NY to NJ back to NY and back home. The light came on for low fuel as I was pulling into shell. How big is our tank?

About gas tank size.

1997 18 gallon
1998 18 gallon
1999 17 gallon
2000 17 gallon
2001 17.50 gallon
2002 17.50 gallon
2003 17.50 gallon

Last weekend, my gas tank is really low and light went on. I have reach 504 miles of full of tank. I fill it up for 16 gallon. I probably have gone like 530 mileage or whatever for 1.50 gallon left.

On my way back from Corpus last weekend, I averaged 26 mpg at 70mph with the a/c on and extra weight in the trunk. That's 455 miles for a full tank, and I'm quite happy with that. lol

My dad looked into doing this on his Explorer, since he has an hour and a half round trip commute to work which is all highway. He ended up not doing it because he said the PCM gets screwed up and tries to dump more fuel in the car because it can't notice the hydrogen or something.

I think he said on cars 96+ or something that the PCM dumps more fuel in, but I'm sure that can be worked around with a tuned PCM. What kinda car did your brother do it on?

Post some pics of his setup if you have any.

It doesn't work.

Don't buy the hype. Those that claim increases unconsciencely change their pedal habits and increase the mileage without realizing it.

i got 25.6 mpg yesterday and that was loaded down doing about 75/80 yesterday i guess it pays not to go WOT all the time lol

I also was averaging around 26/27 mpg on my trip yesterday, and that was with a few times going WOT to get away from idiots.

Mine was able to pull about 31mpgs on the highway. Advancing the cruising timing FTW.

Chris, I would really like to hear details. I wouldn't believe it but if it's someone close to you, and has proof, I'm listening.

Ill have to see on the afr issue. He has 2 of them. 1 in his GTI and he is putting the other in his explorer. It makes sense but like I said still protoypes. But in his GTI he said he made 100 miles more on city/pkwy driving. He wants to do a long drive to really see what it can do.

Don't get me wrong I posted on here asking because I am skeptical myself about it but I did an electrolysis project in High school and made exploding balloons obviously I couldn't do live demonstrations but it was fun lol. Figure the way he has them set up its not hard to do but Ill see how it works.

if it really works why havent automakers done it already. im not saying it dont, i dont have a clue, but im thinking its a hoax.

A guy at my work says he's done it and it "helps".
I think what helps more than the H is the driver being extra easy on the throttle, trying to get even better mileage.

I'm not trying to sound like a paranoid person all caught up in a conspiracy theory but I'm sure auto manufacturers are in alliance with oil companies.

Why would they want your car to use less gas? They make them just efficient enough to keep you buying them.

We have the technology to send us in space, have a 2 ton machine peel the skin off a grape and find chit millions of light years away but we haven't made the average vehicle go 1000 miles on 20 gallons of fuel? (by fuel I don't just mean gasoline)

Ignorance is bliss they say.

I totally agree that oil conglomerates control the auto industry and most of the economy.

Less fuel but more power and great fuel economy scares the crap out of em.

Exactly.

I'm sorry I don't buy the conspiracy theory because way too many people would have to be involved.

So you get 31mpg in a grand prix?

Yes, that's correct. I drive like grandma. I should keep the paper to do the real math mpg but I know it is really 16.?? gallon of gas. I'm just curious how far I make it all way in full of gas tank. 504 miles is my new record.

wow im lucky to hit 20mpg

Mine is good for low 30's on the highway.

How?

I don't quite understand it either. I get 19ish in the city, even when I got WOT a couple times, but I can't seem to get over 25-26 on the highway. Ever.

Volvo has used low boost turbos to make their engines more fuel efficent for years. I think Corey is reaping the benefits of his top swap. I've gotten 30mpg hi-way on my GT, thats 65mph cruise speed with the a/c.

a low boost condition at hi-way speed can make the car burn its intake charge much more completely since the small amount of heat that accompanies the low boost level helps to completely atomize the droplets of fuel and positive pressure promotes good turbulence inside the cylinder also aiding in better combustion.

I do believe Herc has posted feul economy as high as 34mpg with his GTP. The top swap engine's high compression can translate to hi efficency with a good tune and non-aggressive driving habits.

Yes last run I did to Pensacola I averaged 34 on the highway. When I first got the car I made a trip from Maine to CA and averaged 36.

Around town I'm getting 19-20

Yes, I use cruise control on highway too. All I know it really help mpg lot for use it. I spend 95% on highway than city. That's how I got good mpg average. If I live in city and drive the traffic then I bet I would get like 20-23 like some of you have.

My car NEVER got BRAKE on highway for 20 miles. I might hit the brake to let the car from ramp to get in sometimes but I'm working night shift so that's not lot of cars around me.

I've also managed 30mpg highway on a trip to NY and back, using the cruise and A/C. I left with a full tank, and refilled it at 180 miles. It took six gallons...

damn, no matter what i do i cant get anything better than 14-15 city and 20-22 highway

I know what is your problem. You have GTX hood that suck lot of air. That's kill mpg. I will happy to trade my stock hood for your GTX hood for better mpg.

same here. I wonder if it's because I have that LIM leak.

It's all in the tune and maintenance.

do you have a good tune that'll maximize efficiency without sacrficing performance?

yeah the best i ever averaged was 25

That's exactly what it is. Increasing the timing for cruising. Plus my car breathes really good with the open cone, ported blower/LIM, headers, full exhaust, etc.

Oh yeah, I have u-bend delete too. I'm still driving stock intake box. If I got open cone then I'm pretty sure it will help lot. I'm thinking FWI but I know they are bad for raining.

Since I'm same driving habit but my both cars are not same.

Example, my summer car get 500 mileage in full of gas tank.

My winter car get around 400 in full of gas tank. I need to work on that winter car for tune them and get rid of u-bend too.

Right after I got the car I was able to average 32 mpg on a 400 mile trip with a fully-loaded trunk and the ac on averaging 75 mph, everyone with 4 bangers was asking how I could get the same or better mileage with a supercharged 6

Its a performance tune. 93 oct. Hmm Ill have to buy a tuner now. Take a look at my tables.

i get 35mpg at 65mph and 30mpg at 80mph

hydro kit

bummer. I hafta get a better exh (cat, ubend, d/p) and a performance-sucking tune. Think I'll get the exh and keep my tune minus the cooling fan and tranny pressure tunes. Thanks, Corey.

Wait, I think you misinterpreted, or I am not understanding what you're saying. My car was running 13's with that very tune. You don't need a different tune in order to get good mileage. It's the same tune.

OH! Yeah, there was a disconnect. My question was:

after installing a 3" d/p, high-flow Magnaflow cat with u-bend delete

already having a Wizaired CAI

wanting a tune to increase tranny line pressure and to allow the cooling fans to run longer after shut-down

do I need to retune my PCM to maximize fuel efficiency?

If I do retune the PCM, will that sacrifice performance? If so, how much?

This car is a dog off the line (compared to the Camaro), she's heavy, and has an almost anemic downshift (compared to the Camaro), so I dont wanna lose much performance.

Talking to Slick, he had told me that there are very few ways to tune for efficiency AND performance, or at least maintain performance. If you have a tune, or know of a tune, please do share. I think I'm gonna be buying the exh components in less than 6 months.

Richard,

I get my mileage with an off the shelf ZZP tune.

i get 20mpg on the highway
13 in the city
about 2 mpg at the strip

that's on 110 leaded sunoco

I get around 24 mpg on the freeway... in third gear. :p 28-30 when my fourth was still working.

How is the electrolysis done?

When you separate H2O into Hydrogen and Oxygen, it uses more energy to separate the molecules than what you get by burning the components (basic chemistry).

So what I'm saying is, if somehow his car is turning water into Hydrogen and burning it...then the parasitic loss is more than what he's gaining.

If he's doing the electrolysis at home and then transporting the hydrogen to his car, I would like to know more.

You are no wheres close.

He has 2 canisters out of rubber or pvc or w.e Pvc can melt under the heat of electrolysis unless it can get cooling air.

1 of them has 6 sheets of stainless about 5 inches tall and 2-3 wide. 4mm thick. The first one is positive the second negative third positive and so on. All have rubber/ plastic washers inbetween them and are connected by two screws through the middle.

He connects the negatives together and the positives and connects electrical wire to the screws.

Fills it up to the top of the plates with distilled water and a pinch of baking soda. Canister is about 10in tall so 6 in of it is full of water. Then at the top he has a fitting going to a line that leads to the second canister with normal water in it. When the hydrogen leaves the first canister and goes into the second one it purify's the hydrogen and also works as a check valve. Then another fitting and line ontop of that one leads to your intake / charge pipe.

He connects the electrical lines to a relay and then to a fuse and wires it so that it only goes on when the engine is running.

The next step he has is using coils inside the electrolysis canister that run to a flow jet pump and to a reservoir and a small fmhe to keep the canister cool with coolant.

new plugs always seem to help mine and if you have anywhere near 100K miles on your car the O2 sensor probably needs swapping out. O2 sensor probablybeing the biggest culprit of slowly degrading mileage in older cars.

You much be lucky, cuz I'm not doing it. Got a K&N intake, ZZP PCM, HV TB, new plugs, wires, and oil, and I can't get over mid-20s on the highway, despite getting over the 18 advertised with a heavy foot in the city.

I wonder...anyone have the saved tune for a 00 GT?

Would I hafta get a new tune once I add the exh? Or would the LT/STFTs adjusting themselves be sufficient?

It will run fine, but in an ideal situation, you want to tune every time you mod the car. Is there a local club in your area? I think I have seen a lot of guys in Texas with tuners on clubgp, you should ask around.

is there a local club in kansas thatll do tuneups?

http://kcpmc.proboards.com/index.cgi?

A tune-up is different than a tune.

Once Slick gets his gear back, I can work with him.

thanks ordonez