
(I cannot find a "tongue-in-cheek" smilie button)
Are you refiring to water mist over the intercooler or direct water mist into the combustion chamber/air intake. Over the intercooler has been around for a long time, into the intake manifold requires precision placement and ultra fine misting nozzles. The issue is water droplets entering the combustion chambers, settling in the piston bowl and eroding the piston crown as they explode into clouds of sup heated steam. The increased torque is for real, super heated steam releasing energy on the downward stroke, cooler running as the combustion chamber temp is carried out into the exhaust manifold by the steam droplets, more responsive turbo spin up due to a denser exhaust gas stream yet cooler turbo temps.... the piston crown erosion is the issue.Busman wrote:Have any of you ex truckies used water mist injection on your diesels ?
Seems to be a whole industry in the states.
Reason is, I have been aware of how much better the 6V92 T in VP runs when it is raining (cold moist air is more dense so more bang each time there is combustion). Coming back from Sydney last January it started raining near Grafton and the rest of the trip just flew by. Every long hill I came to, you would look at and calculate roughly where you would have to drop a gear, only to find VP accelorating up the hill in top.
I noticed the same thing, to a lesser extent when we dropped down Cunninghams Gap the other day. Up the top was the hot dry air you would expect, down the bottom was a few degrees cooler and there was a bit more humidity in the air as well.
You could feel the difference as soon as we hit the 100 zone at the bottom.
Other touted benefits are no soot and clean combustion chambers (no carbon buildup)
Interested in any real life experience with this.
William