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Water Injection!!!!!!!!

Old 03-08-2003, 02:06 AM
  #1  
1.5 BAR
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Join Date: Dec 2002
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Default Water Injection!!!!!!!!

Has anyone here used or hell even seen a water injection kit used on a car?
I'm very curious as to how these work...

Is the water injected straight into the manifold? Or is it misted into the intake pipe? (Or are some kits one way or the other?)

How hot should engine temperatures be before using this?

I guess I'm really lost on how this can work without damaging internals... as water is an uncompressible element (it will pressurize but will resist the piston with as much force as the piston is pushing on it)... how do these avoid preventing that from happening and damaging it?

Now I have read bits and pieces in articles off the web and off of magazines... that the water is injected in very small amounts and it is evaporated instantly because of the temperature of the cylinders; and on some turbo charged vehicles it will actually use fuel to try and cool down the cylinders making it burn to rich and hindering performance versus a form like this?

Input please
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Old 03-08-2003, 02:34 AM
  #2  
T3
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Default Re:Water Injection!!!!!!!!

Ive seen them on ebay going for 200.00..
They claim a 100hp,,,wtf..how could this spray of **** do that?

Im interested in finding out to.
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Old 03-08-2003, 02:57 AM
  #3  
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Default Re:Water Injection!!!!!!!!

Alcoy/water injection is a simple Idea ( and damn good one ).

The spray that comes out is only a VERY FINE MIST, not like a water hose.

alcohol and water are much harder to burn than gas, so it increases your oct. rating, leading to less knock.

87 oct is easy to burn
93 is kinda hard to burn
93+ alcoy is VERY hard to burn, so you don't get gas burning when its not supposed to ( thats detination ).

The 100HP gains are a little far thrown.
If you could run 5psi with no knock on 93 you made 150HP, then you added alcoy injecton whch let you run 15psi with no knock( not likely ), then you may gain 90-100HP, but thats not real numbers.

On a honda you could run maybe 7psi on 93oct. You could MAYBE MAYBE MAYBE get away with 12psi with water/alcoy injection, resulting in a 50-65Hp power increase. I'm a little rust on my civic info, so those numbers maybe a little off, but you get the point, right?
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