In properly executed water injection systems, no damage occurs for several reasons:the_zerox said:Can anyone tell me why water injectors (into the intake or TB) do not damage an engine ie, common sense would tell me that you would have problems with oil and water mixing or rust right?
It's possible (anything is possible) but here's the problem. The air entering the engine is at or fairly near ambient temperature most of the time. There are exceptions as when sitting in traffic and things get toasty under the hood, but by and large, its generally fairly close to ambient. Water in a glass on a table doesn't vaporize very fast - it can take days (long) for the water to evaporate. In the same way, the amount of vaporization that would occur in the inlet tract under ambient or near ambient conditions would be small. As such, the amount of heat removed from the air is small and the cooling effect negligible. The engine ingests the water droplets harmlessly where they flash into steam and, if anything, may help reduce carbon buildup.the_zerox said:So mike, would it be possible/suitable to place a water injector in a non turbo situation to cool the incoming air, and why dont more people do this (is anyone in this list doing it already?) more oftern rather than adding cold air inductions? (which as it is difficult to get access to on a MX6 is a real problem.
It's true that a CAI helps, though I don't know that I believe all of the gains of, say, a HS CAI, are due to the fact that it's sucking under-car air or if they are due to the much smoother & less restrictive path the air takes on the way to the TB. The OEM air intake on the MX6 & PGT is actually pretty good as far as taking in cool air from in front of the radiator. What's not good is the convolutions the air goes through as it enters that airbox, changing directions several times and then entering the VAF. I'm sure it all heats up, and maybe it can even get pretty hot during a traffic jam in August in Phoenix, but I still don't think the air is getting all *that* hot.the_zerox said:Mike,
How can the air be at ambient temprature, I thought we needed to try really hard to reduce the temp of the air (ie. cai or spacers) entering the mx6's engine?