i'm sure this has been asked a million times
 

but i'm gonna ask again. i have a 2002 silverado v8 and am about to build a 5.3 with some bore and head work, a big cam and ls6 intake, question is what kind of nitrous kit is the best/safest? i had a gm efi wet kit and didn't use it much, i like the tnt kits but wanted a second/third/fourth/etc. opinion.

Matt

Re: i'm sure this has been asked a million times
 

Heres from my personal experience...

For the LS1, the dry kit is the best way to go. I had the TNT wet kit and LOVED the power it gave, but from a mechanical standpoint, wet kits SUCK!! If you have ever seen the inside of the intake, on a wet kit, the fuel and N2O have to flow into the throat of it and then into the the runner opening and then up and over through the runner, not a good path for heave fuel to be taking. Especially for the back 2 cylinders (7&8) The charge has to travel to the rear and then up and over to the cylinder <img border="0" title="" alt="[Frown]" src="gr_sad.gif" /> I used to preach that there was nothing wrong with wet kits, but Ive since changed my tune <img border="0" title="" alt="[Frown]" src="gr_sad.gif" /> Unless you are going to do a direct port system, stay with a dry kit. It lessens the chance to run lean alot more than a wet kit does. Only bad thing is it stresses the injectors as a wet kit doesnt, but you also arent thying to defeat gravity with fuel trying to get up into the runner.

Re: i'm sure this has been asked a million times
 

You will hear lots of varying opinions on this so ultimately you will have to examine the differences between both and make your own call. I am partial to dry kits for simplicity and safety. I do believe they offer a margin of safety over Wet kits. That doesnt mean I think wet is unsafe. Just dry a tad safer. You will be a little more restricted on what size dry shot you use unless you upgrade injectors and fuel pump. Some are afraid to rely on the MAF to add fuel....I see that as a bogus arguement. I have dynoed and seen dry kits dynoed many many times and never seen erratic AF graphs that would lead me to believe the MAF/computer is not up to the task.

I have seen AF graphs of all types from wet kits having problems of one sort or another.

Now having said all that. For any real amount of HP your gonna have to go wet. And preferably direct port as Country Boy said. Id say for 125 or less go dry. If you must go above that and cant swing direct port then you will have to go wet...say from 150-200. But it definately gets a lil riskier at that point. Anything above that youd be crazy not to go direct port.

The other option that no one ever talks about is to get larger pump, larger injectors and a custom computer tune for the injectors and run a larger dry shot. With the new Ramchargers Timing Tuner it will be even safer since you can control your timing now. I have 42lb injectors, a Walbro intank 255lph pump, custom tune for injectors, and NOS kit 5177 with single cheater noid. It made 623 rwhp and 730 rwtq on and ARE 383 motor. All dry.

Anyways....just because you have two replys for dry kits....do not eliminate a wet from your choices. There are certain circumstances that a wet may be a better choice IMO when $$$ is thrown in the equation.. Im sure more wet kit lovers will chime in.

Re: i'm sure this has been asked a million times
 

I have a NX wet kit and to be honest I would rather have the dry kit b/c you can spray it at a lower rpm(suposedly, I say this b/c I have seen more than one person spray them out of the whole with stock converters). I also don't care too much for the idea of fuel being in the intake, for the reason that the intake was not designed for that. I wouldn't have bought a wet kit but it was given to me for Christmas so I'm not going to complain! <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

They are both about equal as far as power(unless you look at NOS making power at the flywheel and NX making theirs at the wheels).

Either way I would upgrade my fuel system if I planned on going with anything over a 100 shot. I hope to get at least an inline pump before I go over the 100 shot myself and I'm still kind of worried about running a 100(I'm really weird about that stuff)

Josh S.

Re: i'm sure this has been asked a million times
 

i see, so it's basically a preferance thing. i did like the wet kit, but next time i think i'll try a dry setup. the fewer parts, the fewer things to have break or mess up maybe, who knows.

Matt

Re: i'm sure this has been asked a million times
 

I have to say that it's a preference thing. I use a wet kit for fear that I might go lean. I'm also using a smooth bellow to minimize fuel puddling. I haven't had any problems to date but I'm only running a 100 shot and mostly stock. I'm interested though to hear more on the dry kits. Sounds like they have advantages too.