As I understand the theory behind water injection, it is that cooler combustion temperatures produce more power and cleaner engines. (I'm trying to remember some literature on this subject) ...something like "do you notice that your car runs better on rainy days"? ...Well the theory is that by injecting small amounts of water it'll cool the combustion temp.s down to duplicate the "rainy day". I personally think it is the cooler air that induces a denser charge of fuel. BUT the added benefit of steam in the combustion chamber can be a good cleaning media to blow carbon out. My $0.02 anyway ...Good Luck! ...Mark

 

Thanx for the info, thats what i was looking for :thumbup:

Keep on trucking! Uh hum, i mean rodding..........

 

http://www.autospeed.com.au/A_0115/cms/article.html

 

Thanks for the link to the water inj. article 4x4. I especially liked the link to the LED EGO monitor included in that article! I gotta get one of those.

 

Here's another:

http://www.racetep.com/wik.html

 

Water injection is primarily used in forced induction engines to keep detonation at bay. The water not only cools the air charge through the latent heat of evaporation, but also stabilizes the combustion process to yeild a more controlled flame front. I wish I had the chemistry background to explain why combustion is stabilized, but I dont.

Water injection actually has nothing to do with adding more fuel. The idea is to be able to run less fuel without detonation. There is very little advantage on a naturally aspirated engine, but in forced induction with 300 degree charge temps off the compressor, water injection make a good replacement for an intercooler.

In forced induction engines it is not uncommon to run 50 percent as much water as fuel. In high pressure ratio(100-250 PSI) diesel engines used in pulling tractors, I have heard of running up to twice as much water as desiel. I was told that the Blagrave pulling team was burning 10 gallons of water and 5 gallons of fuel in one pull, but I dont know how accurate that is.

Chris

 

Thanx for all the replies. I'm starting to get a decent idea on what water injection is and how it works. Keep em coming in!

Thanx all

 

this is a very intresting topic i just wanted to post so i would be subscribed. anyone seen any abc blower manifolds with the intake runners tapped for injectors (fuel or water)?