94NDTA

I decided to get the giggly. I decided to go with the the NX-20920 Wet Nitrous kit. I also decided I wanted a 15 lb bottle. I have a 1994 Trans Am A4. Safety Items...are thes right.
FPSS (Where do I get it, what brand)
Window Switch (Where do I get it, what brand)
NGK TR6 plugs.
Bottle heater (Where do I get it, what brand)
WOT switch (Where do I get it, what brand)

Do I need upgraded ignition/injectors/fuel pump/PCM?

Are there any other accesories That you think I should get? What are some other nice things to have, and things I need for safety.

RacinLT1

it comes with a WOT switch. FPSS can be ordered through NX or NOS. window switch? nos/msd/few others make them,i believe msd has a new digital switch.
Bottle heater? nos/nx/tnt/nitrous works all make em,pick the 1 that you like best.

How much are you gonna spray? that will determine what else you need.

94NDTA

100 most likely. MAYBE 125 shot if I get ballsey enough. I only have 25K miles on my car, so it should be good.

94NDTA

Bumpity bump!

12Second3rdgen

You can get a window switch from MSD and use relays for your noids (it isnt rated to a very high amperage load) and save $100+ on the window switch.

I hear a fuel pressure switch is a fuel pressure switch, all Hobbs switches.

Bottle heater I would go with a nitrous express, as they reference heating off of pressure instead of bottle temperature. I have the nos bottle heater and it seems to work fine, i never used the thermostats that came with it tho just hooked it up on a toggle.

94NDTA

WOOT! Thanks....any other advice you can give me?

94NDTA

Another thing, all I have is 92 octane gas here. Can I get away with using 92?

IamN2Speed

I wouldn't run anything over a 125 shot with 92. 100 to be safe. You're missing the timing retard box. Rule of thumb is to pull out 2* of timing for every 50hp your spraying.

Stick with the NX heater, and use a electric TPS (Throttle Position Sensor) instead of a micro switch. The TPS is more accurate, and you won't have to worry about the switch somehow interfering with your throttle. I totalled my Trans Am because one tiny little screw that held my micro switch to the trottle body came out, and ended up wedging the throttle wide open during a race. (car was actually totaled when I turned the motor off and the steering column locked, but that's a different story... ) Just get the TPS, it's safer!

-Keith

94NDTA

I thought I didn't need a new ignition if I didn't run over a 100 shot. Is a retard box different? Rougly how much does one cost?

dkeers

I would go with the bottle heater from dynotune.org. I am happy with mine. It is 300 watt (I think NX is 250) and I think it is cheaper than NX. It is regulated by bottle pressure like NX.

Dustin

IamN2Speed

It's different by function, however the MSD Digital 7 has a retard function built in. If you go with the 6AL, you'll need the retard box. (or at least it's advised).

Not sure about the 100hp line for stock ignition. My problem wasn't that the stock ignition couldn't handle the power requirements, but that the rev limiter in the pcm cuts fuel to the system. In a N2O system that's real BAD... (understatement) The MSD will let you set the rev limit where it's appropriate, and it cuts the spark to the cylinder. No worries of blowing your motor with no spark.
Even with the window switch, I still feel safer with a spark-less rev limiter.

-Keith

94NDTA

So I DON'T need a new ignition, but I do need a retard box? If so, where do I get one, and how much....Or is it one of those things that you have to have an aftermarket ignition to use.

IamN2Speed

Here's a link to Summit for the Start/Retard Control Box. I'm prety sure you need a MSD ignition to go with it. Ignition = $195, and Retard box = $118. Total that's $313. You could get the Digital 6 for Cheaper ($279) and have 2 stage rev limit (good for burnouts) and the retard box built in. That'd be a much better way to go.

You can see a picture of it and the list of my items on my nitrous section of my old Trans Am...

94NDTA

Thanks man, you have helped out a lot!

94NDTA

OK! Here is my list....If you can think of anything else I need to add to this list SPEAK UP!
NX-20920-10
GNXII upgrade with heater, fpss, pressure guage, blow down tube, purge kit.
Remote bottle opener (I know I don't need it, but I think it's neeto)
NGK TR6 plugs
Mallory 685 ignition (Has a built in window switch, rev limiter, timing retard)
Electric TPS

Does that sound like I covered everything?
Does a N20 filter come in the kit? Do I need a Fuel pressure guage? Should I get my injectors cleaned? I replaced the stock fuel pump 6000 miles ago, should this one be good? If I bubmped up to a 100 shot would I need a new fuel pump/injectors? IS THERE ANYTHING ELSE I AM MISSING?