[rxstephen]

I use the PiNZ system

It uses a dyaphram pump that is over engineered for the job, it can run dry without over heating and can flow substantially more than you need right up to 100psi, for high volume requirements you are best off using multiple nozzels rather than a big nozzel to keep the spray as fine as possible.

Some people have used the system to inject as well as spray externally on the intercooler. The system has fault detection so can be used to switch to a low boost if there is no water pressure.


Cheers
Stephen