[rotrex]

I have observed condensation of pre compressor water methanol spray. it shows as temp fluctuation on the IAT sensor past the charge cooler.
This only happened for flow rates past 100cc/min.
Rice racing's work around to enhance efficiency is to inject as far away as possible from the turbocharger. He injects in the the air filter. You have to have smooth pipes without edges and steps as this would puddle the water.
this arrangement generates a very fine mist. the methanol readily evaporates, cools the intake charge and leaves a very fine water mist. Much of this mist will evaporate as it passes through the compressor. what is left, will enter the cylinder.

The advance you get from such a set-up vs. direct port is that you maximise air cooling and with it air density. you won't have too much water mist in the cylinder anymore.
The advance of direct port vs. the air assist in the filter is that you maximise knock suppression in the cylinder. The way the engine won't mind higher IATs regarding knock. I won't pull significant timing before 70C IATs.

In generell, you could consider spraying a mix contains 70% methanol by weight into the turbocharger. this would drop intake air temperatures a lot more than water.
Unless you not always stop the engine right after WOT with the intake path soaking wet, there will be no issues. The engine heat, the vacuum and air flow in the intake path will have everything evaporated by the time you rolled to the parc fermé after a hill climb and finished your engine cool down.

you usually make more power with a methanol mix than on water alone. Mapping is easier as less timing needs to be added and AFRs more max power are more in the common range of 11.8 to 12.5.
Pure water that actually enters the cylinder as spray often works better at leaner AFRs.
water in combination with rich AFRs such a 10-11:1 does not work well. it does not make power from slow burn speed and then starts knocking as you advance the ignition.