Just bought a Z.E.X wet kit. I was wondering how hard it is to install a window switch?

 

not hard...just 4 more screws and a few more wires added to the cluster **** of nitrous wires

 

like he said it isnt too bad just more wires to run.

 

cool thanks

 

ok here's another question, What exactly is a fuel pressure safety switch, and will I need one with my Z.E.X kit?

 

It's literally a little pressure sensor that checks to see if your fuel pressure drops below a certain level (IIRC something like 35psi for Injected and 8psi for carb, I'm sure there are others but those are what I've used). If it does drop below the threshold then the circuit breaks and your system (should) shut down immediately to prevent a severe lean condition and the subsequent grenaded motor.

normally they connect to your schrader valve or a similar tap into your fuel rail. The normal state is open (incomplete ciruit) so once you turn the fuel system on (key in on position) the switch goes to closed (complete circuit) and your system is one step closer to being armed/active. IIRC the zex kits normally keep tabs on fuel pressure and shut the system down if it drops too low. It also detects nitrous pressure and trims the fuel to compensate for low nitrous pressure so you don't over enrich the mix. If you read the Zex kit manual it will describe most everything in decent detail.

Those things tell me that the zex kit is basically progressive controller and I personally don't like those as they can oscillate the solenoids kinda hard and beat the seats out of them after a while. That can lead to a stuck open solenoid which is bad. I wouldn't worry though... so many thousands of peeps use the zex kit that it has to be pretty decent and reliable. You'd hear a lot of flak about zex if they had any/many solenoid stuck-open issues.

 

It shuts down the nitrous system if there is an unsafe drop in fuel pressure that is pre-set. No the zex kit has one built into it's system.

^beat me to it but mines way simpler of an explination lol.