I was looking for any advice on installing NOS on a 2k2+ Max...anyone done it? How much? Where do I get one? What shot are you running? Any internal upgrades?

I have some 4th gen guys with SC's that need a smackdown! haha Time for the cheat juice since I can't afford the turbo setup yet, and headers just aren't gonna do it!

 

I'm about to spray my 04 maxima with the wet Zex kit (www.zex.com). I've only heard and read good things about their kit. I'm buting the polished bottle. Also purshasing their plugs and Sprlurge kit along with the nifty splurge light will be installed behind the billet opening on Sarona side skirts. Think I'll aim the sprat at about 60 degree angle. I'm doing this for an automotive engineering project due March 12! Called "Wet Sarona."

 

What's the difference between the wet and dry? Looks like they only have wet for the maxima...

 

My next install will the 3rd for my Nitrous Express (NX) kit. I had it on my 97 where I hit a fastest of 13.1 in the 1/4, then my 95 which hit 12.1 in the 1.4 and now my 2k2.

A wet kit is preferable for the 2k2+ or any Gen imho.

You can buy a kit from any manufacturer but NX was the first to offer the wet kit and have a proven track record. The others (NOS and ZEX) have just copied the NX design because up until that point neither one could design a nozzle that would workl and they both badmouthed wet systems because of their inability to get it to work. Now they both sell them.

Dry kits are not recommended because the fuel pressure regulator on the 2k2+ is in the tank with the pump and cannot be easily replaced or pressure increased (which is necessary for the dry kit)

Dry kits bump up the fuel pressure to artifically high levels to allow the injectors to supply the extra fuel required. Wet kits pump the fuel into the intake through the same nozzle as the nitrous is injected and uses stock fuel pressure.

 

Looks like you had some success from your time slip #'s! What brand do you reccomend? Best bang for the $$ is what I'm looking for....that and something that isn't going to destroy my engine.

 

Well I am prejudiced as everyone probably is who is using nitrous. I have only owned two kits, a dry NOS kit and the NX. The dry NOS worked but I believe the NX kit (they only make wet) to be safer and easier to tune because you use stock fuel pressure. You can also run a much higher shot without having to upgrade the fuel pump because the fuel pressure remains stock. The higher fuel pressure used on the dry kits reduces the flow capability of the pump so maximum output is reached much sooner. For the average guy who will max at a 75 shot there is no need to upgrade the fuel pump with the wet kit.

I am repeating myself all of this stuff is availble to read in the FAQ's

 

I'm using NX. Had on for a year now and no problems. Keeping it at 75 shot.

But Jim as soon as you find an effective way to bump up the fuel flow on this returnless system and go up to the 100 shot let me know. (I hope it'll be something other than a separate fuel cell.) I know there are a couple of guys like SR20DEN and BluByu who have gone 100-150 shot but I also know that they had problems afterwards.

I don't think going with a secondary in-line pump will do the trick: will it just starve the stock pump? And replacing the stock pump with a high-flow will just be negated by changes the ECU makes. Right???

OK just read one of your posts from another thread. Guess you'll be going with the separate fuel system....Still let us know how you did it so we can aspire to be as fast

 

I have my WET , NX kit ready for install...hopefully in a few weeks. I have all the bells and whistles for it. I will keep you posted with pics and times. I should have no problems smoking SC maxes.....Most squeezing VQ35's are running low 13's and some 12's .....

 

So it looks like the way to go is an NX wet kit, 75shot? Thanks for saving me the time of reading through the FAQs! I really appreciate it.

I've never run NOS before...totally new to me. I was going to buy the hotshot headers, but now I'm thinking this might be a better way to go. The power is there when you need it, the rest of the time you can be "stock" with no added stress to your car.

When do you guys switch it on? 3rd gear? My car already has traction problems in 1st and 2nd as it is...

 

I am running a NOS wet kit on my 2k2.. Currently running at a 50 shot, but I plan on bumping it up to 75 for the summer.. I have bought the NOS RPM switch and chips to spray from 3600 to 6000 RPM to make sure I can get some sort of traction before it kicks in and cuts off before the shift.. With this setup I cut about .8 seconds off of my 1/4 mile time w/ street tires.. Traction is terrible even with a 50 shot, D/R's or slicks seem to be a must to have decent and solid results..

 

If you want to race, gotta have race tires. D/R's are crap compared to slicks. I did post a comparison last summer because I tried all 3 same day same shot. I believe it was 15.1 with street tires, 13.9 with D/R's and 13.1 with slicks and a 35 shot or very close to those times, the only one I am not sure on is the street tire one. But you can see the difference between D/R's and slicks.

That is for a 4th Gen auto so you can imagine how much more of a difference it would be with a manual trans. I don't even run street tires on the track, except for that once to prove a point.

Edit. I just checked my timeslips it was a 13.2 on the slicks, my best is 13.1 with a 35 shot though. Regardless that is a 0.7 difference between slicks and D/R's with only a 35 shot so larger shots would make even more of a difference.

 

What would you recommend for slicks?? Could you point me in the right direction??

 

I use 22x8x15 Mickey Thompson slicks with my auto which I think works best. If you have a manual you will probably do better with a bit larger diameter, ie24" or so.

 

Is that on a 7.5" rim?