question on water injection

[Anonymous]

this may have been covered in gm's post but it occured to me that the more water used, the more volume is taken up since water can't be compressed. reducing volume incleases compresion, right? could wi be used in a normal engine to raise compession. say into the 9.2 range?
thanks
paul

 

[Asa]

i think that if you got enough water in there to raise compression, you'd be hydrolocked

with water injection systems it's only a mist that gets introduced into the A/F mixture, only a few drops

 

[rbohm]

8) the only way water injection affects compression is likely by lowering it as a result of the resultant steam cleaning of the combustion chambers of carbon deposits. otherwise the water is merely part of the a/f mixture.

 

[Anlushac11]

8)

When it enters the chamber the heat turns the water to steam, steam IIRC can be compressed.

 

[Thad]

Water injection cools down inlet charge and increases effective octane (resistance to detonation) so the higher CR and spark advance could be use.

Not a lot of water involved, to much you put the fire out way before hydraulic blocking. Resistance to detonation becomes resistance to combustion. :roll: