Thread: Nitrous, Dry or Wet?

I have a NX Nitrous kit that a friend of mine gave me. It was made for a wet setup, but I was wondering what setup is safer to use with the M90? I believe I read somewhere that Dry is safer because you don't get the same fuel to nitrous mix when shooting through the blower.

Any suggestions?

Originally Posted by Street Wolf

NX is based here out of Wichita Falls. I go there regularly.

If I ever decide to get it on my Impala I'm going there in person.

Wet or Dry will work with our cars.

It does not really matter what you use, as long as you are set up for it, and tuned properly for it.

Regardless...shooting through the supercharger wont hurt too much, (oh no my precious teflon rotor coating ) ...er...anyways... you will not get a very good equal distribution of nitrous to all the cylinders.

Will this hurt you?

Yes, and no. If your running it a lot, and have a pretty massive shot running through your engine, yes over time.

Anything at or under a 75 HP shot will be more than fine long term. With that...no, that wont hurt you.

Hard on other weak parts for sure...transmission for one...such as letting the engine shift under WOT and a nitrous spray is not good on a stock transmission.

Wet or dry...take your pick. You can run and use either just fine on our cars.

~F~

Originally Posted by Street Wolf

Yeah? That's quite a drive. The area most people see isn't very exciting. Just a small room with some bottles laying around and some brochures. lol

Do they not install? I figured if they installed I'd rather someone else do it.

I would stick with a wet kit. you are able to change the shot without having to worry about your tune. I like them. these motors handle spray very well.... anything around 150.. I would deduct timing!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

100 and under you will be safe.

I need a WOT switch and either a button or an RPM switch as well.

Got any part number I can get for these 2 items? I also need a 100 and 75 jets.

I have a built tranny with hard parts and such. Pretty much my car is set up for nitrous, just need to install it. Got everything except for the items I listed above.

F~yeah, I don't want to spray @ WOT through the shift. That is why I want an RPM switch or a button.

Suggestion is to run a "window switch" which will open your solenoids at WOT and when set up correctly when your throttle body blade is fully open. (yes have seen them installed wrong)

With a button...push on, no puck off...you might run into problems with too soon, and too long.

Best way is a window switch, and pills, where you have a RPM window, for what RPM you want it ON and OFF. Such as 3000 RPM on, and 6500 RPM off for example. I use the window switch and nothing else for me.

Originally Posted by japslpr

Pretty much my car is set up for nitrous, just need to install it.

Common statement I see, which usually ends in failure when they try to run a large shot on a mostly internal stock built engine. Problems they see is chipped pistons...which is not a result of engine knock, but engine HEAT. Running nitrous, though cold, once burned runs extremely hot in an engine. If the piston ring gap is not changed, such as INCREASED, then you run the risk of chipping your pistons, or worse yet, grenade your engine. The piston rings will expand with the heat, as they are made to, and if they are still at the stock settings, for emissions...then they have no where to go but up or over lap in the piston groove...and pop goes the top of your piston. Mostly right in the corner, over the top of the gap of the top ring is where they will pop off.

or...the whole piston goes pop.

if your going to do it right...run a larger gap in your rings and play it safe.

And don't forget to pull timing, that's pretty important too.

~F~