1998 Auto SE is what I've got right now. I know I wont be able to afford a turbo or SC and the after effects so I was thinking about nitrous.

Since I'm auto...I know I'll need a few tranny mods. What is everything I should definitly get to have 99.9% reassurance my tranny won't blow?

I know I should get the VB mod and new tranny cooler...but is that all? Please let me know so I wont do somethin stupid.


I'll be planning on using a 75 or 100 wet shot.

 

thats pretty much all you need, i just run the dropresistor and a tranny cooler, i would get the valve body mod doen too, which is what i am going to do soon. Do the basic intake and exhaust stuff too. Bottle heater is a must also. And get a wet kit!

 

I really need a bottle warmer...It was like 88 degrees here in ATL today. That wont heat it up enough?

 

well, if you run at the track, on a colder day, it might not, i have seen my bottle presure at 450 on a cold day here in ny

 

I would suggest NGK cold(gap and heat range depend on what shot you'll be running) plugs,bottle heater(must), NX wet kit(model# 20923), and a fuel pressure safety switch just in case.

I could tell you what I would do as far as the tranny goes, but I have NO first hand experience with A/T so anything I say would be B.S. and not real-life experience so I'll leave that to the A/T guys.

 

So, no "nitrous" gauge is necessary is it?


What guages would you have FOR SURE?

EGT? A/F Ratio, Fuel pressure, etc....

 

if I didn't know any better, I'd say you just broke in my garage and took a picture of my A-pillar

I'd recommend a n2o pressure guage, whether it be on the bottle or in-cabin. I prefer to have it in-cabin, but that's just a personal preference. I'm using the A/F ratio guage(light show/not very useful)for now until I bump up to a higher jetting. I'd grab an EGT or a Electric FP guage for fuel monitoring.

 

tranny temp (measures trans oil temp, which is sort of useless because my tranny temp has never gotten above 150 ever, the gauge goes up to 250+ (note: i have a medium sized tranny cooler).

The egt is good because it will tell you if you are running lean or rich. (high temps = serious problem, lean condition, 1300 deg. f is about the max you should run) (low temps = rich, reduce your fuel presure, or other things etc)

Nitrous presure (low/high presure will tell you if you are running what you should)

Fuel presure (usefulness varies depending on where it is placed. if you have a wet kit and a very small(too small) t fitting and place the sender before it it will read fine presure when you are actually low presure on the other side of the tee. best place to mount would be the fuel rail)

A/F ratio (somewhat useful, taps into the o2 sensor wiresand lets you know if you are running rich or lean, i have mixed fealings about this gauge since other gauges will fairly accuratly tell you if you are running lean rich ex. egt, fuel, nitro press.)

Oil temp (usefull for supercharged and turbo'd applications since there is oil running through the turbo/super charger)

Vacuum preure (useless to me)

 

oh man I'm a NOS NOOB

 

If you don't have a bottle heater, your bottle will get cold after a run, and it takes awhile for it to get warm, and build pressure again. I have seen my bottle pressure drop about 250lbs after a 1/4 mile pass without running the heater. You will not regain that pressure, even in Atlanta, without a heater. Bottle pressure is the only guage I have right now, but I am getting ready to do EGT,and F/P. I have the VB mod, and I'm running Amsoil synthetic.

 

Tapout - so...say if I'm gettin a 10lb bottle...what psi should the bottle read when it's ready (warm enough) to spray?

Guages I must or should have:
-EGT
-N20 Pressure
-Tranny Temp

Is that a good trio to start out with?

 

Good idea, it will give you a good base reading, thats exactly what i am running now. it would be easier to run a bottl presure gauge on the bottle itself. I would also add a fp gauge if you could.

 

The recommended psi for NOS is 1100psi. I have run everywhere between 1400psi, and 650psi and I actually think it hits the hardest at about 1200. The issue becomes safety at the higher pressure, I am a victim of running the pressure too high right now. I am getting ready to go purchase the rebuild kit for my solenoids because the system got overpressurized. I also think the F/P guage is more important than trans temp...Just my opinion.

 

would having an a/f gauge be a good replacement for a f/p?

 

I would not RELY on a a/f guage especially with a larger shot, but it will give you an idea of what's going on.

 

A/F guage is a cheap way of getting an idea of what an EGT guage will read.

 

Good call on that one.
Also nice to see people NOT telling him to get injector, ECU, etc etc.....
EGT over A/F (unless you can score wideband... much better than EGT IMO)