Water before turbo
I've tried it before I use Aquamist system.
By intruding a small pipe to the inlet just behind filter & AFM, you may easily feed in very much water. An inline needle valve can be used as adjustment. Think of a carburettor.
I gave it up eventually. The boost control usually utilizes the compressor oulet pressure. The water got into & out of the compressor wheel might not vaporized thoroughly. So the water would travel down many other devices on the related paths.
That'd be a bad thing.
If you can figure out a way to avoid that kind of mess, it's worth trying. The cooling & anti-det effect is very good.
Since you have a large intercooler, why not try an external water spray? It's also quite effective.
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