[335i54n]

anyone else daily a wmi setup. running just water so far for iat cooling, controlled with a switch that engages around 14psi. running devils own with smallest #3/370ml nozzle, thinking to drop engagement psi to 12 and run a #4/440ml nozzle

is it bad to leave system pressurized if i dont drive it for a while?
should i hook up a pressure gauge also ?
thinking to add prometh check valve also just in case after solenoid?
are there significantly better nozzles than devils own?

input appreciated

[335i54n]

so far super happy and highly recommend wmi to anyone wanting to keep iat in check and wish I would have done it sooner. if you plan to use it alot or use for fueling also, highly rec 2 gallon or more setup and also found this cool controller.

https://hpcontrols.ca/water-injection