Good picture!
Curious what your configuration is --- where did you have the nozzle located, what the spray rate was, and the turn on point?
Yours is a little worse than mine, but you have the same situation where only the blade tips are effected.
On my current compressor I have turned the water spray volume way down and shifted the turn on point to a significantly higher pressure.
We'll see how that works out. I'll pull it out here in next spring probably and take a look at it.
For maximium performance I think the deterioration is probably acceptable if you have no other convenient means to
setup the water injection.
You are working with an undersized turbo and cannot replace it for anyone of several reasons
( like it would move you to a different class but the WI is acceptable).
If your willing to consider the compressor a wear item and spend the $40 odd dollars every year or so to put a new one in.
I still think that circumstantial evidence indicates a good probability that most of us are ending up with
liquid water dropplets running down the inside of the intake duct and that those large dropplets are causing the problem,
rather than the small mist dropplets in the air stream.
Larry
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