I just got my fpss in the mail from Jeg's, but it is the one for 4-7 psi. I want to run it after my fuel solenoid and only grounding the nitrous solenoid. This way if the fuel solenoid sticks the nitrous solenoid won't open. Will the switch I got be fine for this. I am not worried about the switch making sure the fuel pressure is low. It should turn on when it sees any pressure even if it is 50 psi right? I really don't want to have to pay and send it back.

Thank you
Dustin

 

Unless you are carb'd you will need to send it back. That is the FPSS for carb'd applications. They tried to sell me that one when I ordered mine. I've got mine set a 35psi, if it drops below that it cuts the relay to the solenoids. The carb'd one is going to cut it at 5-7 psi, you will be in big trouble way before it drops that low.

 

I'm sending it back. Thanks.

 

Mine came from NOS with no intructions on how to adjust. If I unscrew it does it drop pressure? I did that and now it won't work. I lost the dam screw on the inside, so I can't tighten it back.