I'm thinking of getting a Zex system. How much was everything? Was it a tough install? Did you install different plugs and use a different tune than stock? Is a 100 shot pretty safe for the motor? How are your half shafts holding up? Any other mods you recommend to go with the nitrous?
Well I went with a cool setup...
Zex Hemi kit
Zex window switch
Zex remote opener
Bottle warmer
NOS "Pressure On Demand" setup...this is the cool part. It's a little digital box that is in my center console that I turn on, open the bottle, and turn the heater on with, and the digital display shows the pressure from the pressure sensor in the bottle. Very sweet. Total setup cost me about $1350 shipped, but if you are only using it at the track you could probably get away with a little less.
Installation was very easy, but there are some things that they don't explain well in the directions for programming the control unit. If you do it, I can try to help but "THE MAN" is member JMatt. He helped me trouble-shoot and figure out some issues.
From everything I read on here and other LX forums, a 100 shot does not need colder plugs, and I've had no issues so far. I don't have any tuning done - my only mods are Magnaflow catback, GSM intake, and GSM ESP mod.
Can't really speak to the safety on engine, or the long term damage to rings, etc. because I don't know enough. I am taking the approach that if something happens, it will be a good excuse to go to a 426 stroker :grin:
Half-shafts...as far as I know on the stock tires you should be fine. I've seen posts about people snapping them running slicks. I also only do a quick burnout in the box - I don't try to give a smoke show.