I searched this thread awhile back. If memory serves correctly, the Zex (purple bottle) Wet system was pretty good.

 

Has anyone used the NOS brand?

 

To my knowledge, Zex does not make a wet kit. I have the zex dry kit, & I love it. My advice is to go dry & keep it simple...that is what the zex kit does best. Wet kits seem more optimal when going above a 75shot. With our high compression engine, 55 or 75 is all we need...too risky to go higher reliably. I would also recommend a better fuel pump if you are going above a 55shot, although some have managed without. Also, look into some cool copper spark plugs (NGK maybe). They are a must with juice!

 

Zex just recently came out with a wet kit. In fact, mine is getting installed today.....

 

Yup, Zex has a wet kit. Definately go with a wet setup, and NX or Zex are good brands. NX has the best solenoids.

 

How about NOS? Is that a good brand? They have a dry kit for the s2000.

 

In case you haven't noticed ye, judging from the answer given so far, NOS doesn't seem to be on the list of do's for this car.

I was looking at getting NOS as well for my car, but after reading several threads here and other sites came to the conclusion that NX or Zex would be the best.

My problem now is finding somebody in Belgium/Holland/Germany that is capable of installing a NX kit on a s2000......

 

I installed the zex wet kit myself. Don't believe the 2-hour BS. It took me over 12 hours. But I did it carefully trying to plan out how to run the wires, placement, etc. I also have an Injen CAI, so had to remove it to drill. Wanted to make sure I removed ALL metal shavings.

Since I will be installing my Vortech in a couple of weeks, I wanted to make sure I didn't have to reroute Nitrous when Vortech gets installed.

Also a few trips to Honda dealer. Make sure you get the Fuel Washers so fuel doesn't leak after you depressurize the fuel lines. That set me back a while since the fuel started to leak. Honda dealer will most likely have to order them.

 

i used a NX kit on my accord and it worked great. i have no persoanl experience with NOS(the company), venom or zex.

 

I had NOS on my maxima. 80 shot dry kit. If I had to do nitrous all over again, I WOULD NOT get another dry kit. Go with the wet. There is nothing wrong with NOS or with dry kits, and for small shots, it is possible to get 50 shot dry kit and forget about it. But will you be happy with a 50 shot? If you want a 70 shot or above, you need to have new fuel pump and you need to make sure its tuned right, and with a dry kit not all cylinders get equal amounts of nitrous. And bottle warmers ARE A MUST. Bottle pressure decreases very rapidly with each use, and as the pressure keeps dropping, that means you are running more and more rich since the nitrous-engaged FP is set at a fixed PSI but the nitrous pressure keeps decreasing. Another reason not to get a dry kit. Bottle heater is absolutely necessary and you need to figure that into the cost of the whole thing. And with our cars, RPM switch is also necessary too since s2000 only comes with 6spds. Makes things only more expensive and more complicated. I would never do nitrous on my s2000. but I do want the SC !!