i was planning on buying a nx kit but i know there has to be moer then just getting the kit. it there any fule mods i need or spark plugs ect. just wanted a list of some things that i would need to run a 100 shot safely thanks

 

1 step colder plugs, a TPS or WOT switch and maybe a window switch if you have an auto.

 

so the fule set up in our car is fine just needs to be tuned after. thenks for your reply

 

you also need the Genx II kit if you're planning to run at the track. It adds the Purge, and Blow Down Tube as well as the fuel safety shutoff.
Window switch is a must or you go Boom in case you hit the limiter
Plugs need to be copper or irridium NO Platinum that'll melt

Depending on the shot you should add higher octane gas at a minimum add NX chemical X nitrous booster

 

Is the blow down tube really necessary? I'm a little confused as to what it actually does. Can someone explain. Thanks. i am under the impression that it automatically vents at really high tank pressures? Is that correct or does it do something else?

 

The Blown Down Tube is an NHRA requirement, they won't let you run otherwise. It's purpose is to vent nitrous out the car in case the safety valve pops at 3000 psi, that way you don't sufficate in your car, since pure nitrous won't let you laugh yourself to death