Air assisted atomizing nozzles break the water down to around 5 microns, using pure distilled h20 these guys are making some serious HP.
Of course there is no real info about the amount of air pressure needed to atomize, or where to get one of the nozzles pictured.
I did some searching and I believe these are similar...
Atomizing Spray Nozzles for gas cooling, coating, humidification and fogging applications
You can see in the video one of the jets located on the back of the compressor cover pointing into the air filter void and against the oncoming air stream. This 13B rotary engined car makes over 750bhp on Optimax 98 Ron (87mon) pump petrol and uses around 600cc/minute water flow rate. It has consumed well over 200 liters of water and the compressor wheel looks just like a new one.
http://www.riceracing.com.au/Videos/500_bHp_rx2_water-injection.wmv
Water Injection
Of course there is no real info about the amount of air pressure needed to atomize, or where to get one of the nozzles pictured.
I did some searching and I believe these are similar...
Atomizing Spray Nozzles for gas cooling, coating, humidification and fogging applications
You can see in the video one of the jets located on the back of the compressor cover pointing into the air filter void and against the oncoming air stream. This 13B rotary engined car makes over 750bhp on Optimax 98 Ron (87mon) pump petrol and uses around 600cc/minute water flow rate. It has consumed well over 200 liters of water and the compressor wheel looks just like a new one.
http://www.riceracing.com.au/Videos/500_bHp_rx2_water-injection.wmv
Water Injection