Hobbs switch for NOS setup?

[snyderjw1]

A buddy of mine is putting a small fogger system on his buick...he was curious if there is a safeguard we can use in case of a loss of fuel pressure...is there a nice way to shut off the extra fuel/nitrous if there is a sudden drop in fuel pressure (pump failure or whatever)....thanks for any help, John

 

[HighPSI]

Yes, you can buy them direct from NOS or other sources. I have a nice one from Bent6 that is adjustable. Maybe he can chime in where he got it. I actually use it in the intercooler pipe to turn the NOS off when I reach a certain boost.