water injection

[kniever]

-just wondering how water injection works
-how much power gain there is
-and how to set it up

any info would be great

[immortality]

water injection works just like an intercooler, the water absorbs the heat cooling the intake charge. it has the bonus effect of steam cleaning your engine from the inside.

[vn calais manual]

begin: the water injection vs intercooler argument =)

[kniever]

so how is it set up and where? is it before the throttle body?

[weedo_86]

i got a set up to go on my charger, it injectors a fine mist before the throttle body

[vnv8driver]

cooling the intake temperatures is a benefit of water injection but the main reason is to increase compression in the combustion chamber, not alot of power is to be made with a water setup but works wonders on a worked motor.

[immortality]

Originally Posted by vn calais manual

begin: the water injection vs intercooler argument =)

i don't see it as an argument. each has a purpose and a fuction, to achieve a similar end result. intercooling is only really suitable for FI setups as it is used to reduce the heat introduced by what ever means fo forced induction your using. water injection can be used with either FI or N/A. the great thing with water injection is that you can also mix it with alcohol (50:50 mix) for good results

[com8]

pretty sure the army used water injection in their tanks and planes in ww2.
mechanic recons it works well although you
need a good set up which he says is just over a grand .(with computer mods ect .
there were kits out there but most are apparently crap!..with small gains.

must reserch!!

[VH commodore]

i have no idea how water injection works...last i heard water in the engine is bad...sorry for being noob lol

[immortality]

Originally Posted by com8

pretty sure the army used water injection in their tanks and planes in ww2.
mechanic recons it works well although you
need a good set up which he says is just over a grand .(with computer mods ect .
there were kits out there but most are apparently crap!..with small gains.

must reserch!!

yes, they used water injection in WWII fighters. it was forgotten about after the war but has become more popular in recent times and from waht i've read about it, it definitly does work, in fact one guy questioned why it wasn't fitted as standard from the factory, i guess the manufactureres don't want there engines to last forever

[VrWagz1]

I was of the understanding that water injection was mostly an injector in the inlet manifold, and as its sucked in heated and compressed in the cylinders with the air and fuel it splits and burns, thus giving a very small power boost as hydrogen and oxygen are much more flamable than petrol and cleans your engine slightly and helps to rust your exhaust a bit quicker.

[jules]

Originally Posted by kniever

-just wondering how water injection works
-how much power gain there is
-and how to set it up

any info would be great

water injection cools the intake charge and helps avoid detonation. it doesn't raise compression itself, but allows the engine to run higher boost or engine compression ratio (which normally means skimming the head).

[DannyboyDS]

Originally Posted by VrWagz1

I was of the understanding that water injection was mostly an injector in the inlet manifold, and as its sucked in heated and compressed in the cylinders with the air and fuel it splits and burns, thus giving a very small power boost as hydrogen and oxygen are much more flamable than petrol and cleans your engine slightly and helps to rust your exhaust a bit quicker.

a tiny bit of steam should be comming out of the exhaust anyway its normal for moderns engines, not to mention that the exhaust after a long drive is generally hot enough to evaporate it away, this is why cars that do allot of short trips and very few and far between long trips tend to end up with rusty exhausts, at least thats what we were told when my dads AU ended up with a rusty exhaust.

[eaton v8]

has any one used a succesful system?? what name was it