Water mist injection - feasible ?
#1
03-02-2008
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Water mist injection - feasible ?
Is water mist (vapour) (sorry vapor for US...) injection an option on the 4.0 V6 Auto ? It was done during WW2 on fighter aircraft and worked exceptionally well then. What has changed since, besides higher tech control circuits etc. ? The basic idea could still work. Will this be possible, if done with care to prevent water logging engine. The power gain through slower combustion and more complete combustion is a known fact. The water acts like an octane increase so there must be benefit. Please note, this is different from H2 gas and O2 gas added to intake. This is actual water I'm talking about.
OK, let rip guys, that's why I asked, to get all the "-'s" as well as "+'s".
Manie
OK, let rip guys, that's why I asked, to get all the "-'s" as well as "+'s".
Manie
#2
03-02-2008
I don't see how it would be possible. The one thing that water brings that has to stay out of the engine is rust. Also with any malfunctions you've just hydrolocked yourself a motor. Wasn't it only possible on the aircraft due to the altitude of the plane anyhow? I just know that engines, fuel injectors and gasoline don't like water.
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03-02-2008
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#5
03-07-2008
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Water injection is done on automobiles. Not from the factory, but its a popular mod for racers/hot rodders.
You could say it acts as an "octane booster" in that it helps keep cylinder temperatures down, allowing for a longer burn and advanced timing (I'm pretty sure, ask others on this one).
Would it be worth your while unless you're heavily modified or running some serious power adders? Not on your truck. If you're that into modding up your 4.0 SOHC, ask some other guys here, or go to mustangforums.com, because I know theres plenty of guys there pushing 400-500 whp on their 4.0 Stangs.
Also, for every gallon of fuel burned, your motor produces a gallon of water.
You could say it acts as an "octane booster" in that it helps keep cylinder temperatures down, allowing for a longer burn and advanced timing (I'm pretty sure, ask others on this one).
Would it be worth your while unless you're heavily modified or running some serious power adders? Not on your truck. If you're that into modding up your 4.0 SOHC, ask some other guys here, or go to mustangforums.com, because I know theres plenty of guys there pushing 400-500 whp on their 4.0 Stangs.
Also, for every gallon of fuel burned, your motor produces a gallon of water.
#6
03-07-2008
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In case you didnt know, super and turbo charging were not just done on aircraft simply to add power. Forced induction is also used in environments where the oxygen is simply too thin to be used in a naturally aspirated motor. Due to the high altitudes that planes would fly at, air was too thin, so compressing it helped to compensate for this problem.
#7
03-08-2008
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Thanks for replies
Thanks guys, I don't want more power just for power sake. I would like to get better mileage for cost saving sakes, if that combines with more power and better torque (which it should) then that is just a good bonus. The 4.0L is thirsty, face it yes. Here in S.A. the fuel price is just nuts though ! Direct conversion translates to US $ 1.05c PER LITER ! = $ 4.00 a gallon ?
Manie
Manie
#8
03-08-2008
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Most people use a water or methanol type of system to stop detonation or ' knock '. Its not really to boost ' fuel economy ' (sic).
4$/gallon is NOT bad at all..
http://money.cnn.com/pf/features/lis...bal_gasprices/
Netherlands Amsterdam $6.48
Norway Oslo $6.27
Italy Milan $5.96
Denmark Copenhagen $5.93
Belgium Brussels $5.91
Sweden Stockholm $5.80
United Kingdom London $5.79
Germany Frankfurt $5.57
France Paris $5.54
Portugal Lisbon $5.35
Hungary Budapest $4.94
Luxembourg $4.82
Croatia Zagreb $4.81
Ireland Dublin $4.78
Switzerland Geneva $4.74
Spain Madrid $4.55
Japan Tokyo $4.24
Czech Republic Prague $4.19
Romania Bucharest $4.09
Maybe we should all follow Europe seeing as they are always telling the U.S. were ' wrong '. I mean its only 5.40$US/Gallon in France..
"The main factor in price disparities between countries is government policy, according to AirInc, a company that tracks the cost of living in various places around the world. Many European nations tax gasoline heavily, with taxes making up as much as 75 percent of the cost of a gallon of gasoline, said a spokesperson for AirInc.
In a few Latin America and Middle-East nations, such as Venezuela and Saudi Arabia, oil is produced by a government-owned company and local gasoline prices are kept low as a benefit to the nation's citizens, he said. All prices updated March, 2005."
Gee.. if we would remove our taxes on fuel and actually drill our own here, Imagine 1.50$/gallon costs! Its not a dream, but 100% possible.
4$/gallon is NOT bad at all..
http://money.cnn.com/pf/features/lis...bal_gasprices/
Netherlands Amsterdam $6.48
Norway Oslo $6.27
Italy Milan $5.96
Denmark Copenhagen $5.93
Belgium Brussels $5.91
Sweden Stockholm $5.80
United Kingdom London $5.79
Germany Frankfurt $5.57
France Paris $5.54
Portugal Lisbon $5.35
Hungary Budapest $4.94
Luxembourg $4.82
Croatia Zagreb $4.81
Ireland Dublin $4.78
Switzerland Geneva $4.74
Spain Madrid $4.55
Japan Tokyo $4.24
Czech Republic Prague $4.19
Romania Bucharest $4.09
Maybe we should all follow Europe seeing as they are always telling the U.S. were ' wrong '. I mean its only 5.40$US/Gallon in France..
"The main factor in price disparities between countries is government policy, according to AirInc, a company that tracks the cost of living in various places around the world. Many European nations tax gasoline heavily, with taxes making up as much as 75 percent of the cost of a gallon of gasoline, said a spokesperson for AirInc.
In a few Latin America and Middle-East nations, such as Venezuela and Saudi Arabia, oil is produced by a government-owned company and local gasoline prices are kept low as a benefit to the nation's citizens, he said. All prices updated March, 2005."
Gee.. if we would remove our taxes on fuel and actually drill our own here, Imagine 1.50$/gallon costs! Its not a dream, but 100% possible.
Last edited by D.; 03-08-2008 at 01:58 AM.
#10
03-10-2008
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#11
03-11-2008
#12
03-11-2008
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hippies did it!
In the late 70's Mother Earth News showed 2 ways to add water injection to daily drivers.
One used a plastic jar w/ aquarium tubing, valve and bubbler... a 'T' was added to a vacuum line close to the manifold and tubed w/ the valve to run into the jar to draw in the water. and the bubbler stone was at the bottom of a tube that provided a vent to the jar full of warer. At an idle crack the valve until a small stream of bubbles emerges from the stone showing that engine vacuum is drawing in a small amount of water...
The other idea decided that the newly added 'EGR' was just the ticket to control WHEN to add water and used a 'T' to add water VIA the EGR...
Both articles showed favorable results but I inagine that keepung the water topped off was a PITA...
One used a plastic jar w/ aquarium tubing, valve and bubbler... a 'T' was added to a vacuum line close to the manifold and tubed w/ the valve to run into the jar to draw in the water. and the bubbler stone was at the bottom of a tube that provided a vent to the jar full of warer. At an idle crack the valve until a small stream of bubbles emerges from the stone showing that engine vacuum is drawing in a small amount of water...
The other idea decided that the newly added 'EGR' was just the ticket to control WHEN to add water and used a 'T' to add water VIA the EGR...
Both articles showed favorable results but I inagine that keepung the water topped off was a PITA...
#13
03-17-2008
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I found this link and it looked interesting. http://www.hafctechnology.com/index.htm
I have no idea how well it works if at all. But does look interesting.
I have no idea how well it works if at all. But does look interesting.
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