Helo, newb nere with question about nitrous

[junior281]

Hello everyone,

I just purchased a Nitrous Express wet system. I wanted to run a 100 shot when I purchased it, but a few mustang people have asked me if that's too much. They tell me to go with a 75 shot instead. It got me thinking and I tried to purchase 75 shot jets. Unfortunately, they don't make 75 shot jets for this system. I'm stuck with 50 shot, 100 shot and 150 shot aplications.

Even though a 50 shot is okay, I want something a bit higher. I want to go with the 100 shot, but I'm apprehensive.

Have you run a 100 shot on a lightly modded 99-04 GT? Is it reliable? I'm running Autolite Double Platinum spark plugs that have just under 20,000 miles. I'm only planning on running a 100 shot about 8 times. Should I get different plugs? Should I put the GT on a dyno with and without the nitrous shot and see how it runs before taking it to the track?

Thanks in advanced and forgive the inexperience.

 

[Dragstr05]

Probably the MOST you can expect to run reliably on a stock GT is a 125 shot. 100 shot you should be just fine if you have a good tune with it. Get all the safety stuff to go along with it (WOT switch IMO is a good idea).

I would highly recommend getting it set up and running good with a tuner before you hit the bottle, or you may get yourself into some trouble. And you'll need to go a couple heat ranges colder on the plugs as well.

 

[junior281]

I have the WOT switch, but no tune. A performance shop installed the system for me.
Do I need a chip for the tune? Otherwise, how do they tune it so it could run well on nitrous and without nitrous?

 

[86bluecobra]

you do not want to run platnium plugs and nitrous. Every instruction guide i have ever read says no platnium plugs.

 

[junior281]

What plugs should I be running? Any suggestions?

 

[86bluecobra]

run the plugs the instructions say 2
if you are running the 100 hp hit then you need plugs which are 1 step colder. for every 100hp shot you need 1 step colder plugs.

 

[junior281]

I'll have to look at them when I get home. I had nitrous before, but this was a while back. I had a 90 5.0 with a 75 shot (dry), cheaper autozone sparkplugs, no tune and it ran like a champ for years. Why are these cars more sensitive?

 

[86bluecobra]

Q. Should I change my ignition system in any way (timing, plugs, etc.)?
A. All NX Stage One or Street systems are designed to operate with no timing retard. Spark plugs should be changed to non-platinum style, 1 to 2 steps colder than stock.


A question right out of NX website.
This is out of the general install guidlines from the NX istall:
In stock engine applications and street usage the spark plugs should be at least 2 steps colder than stock. Do not use platinum tip, extended tip or any plug with multiple ground straps or split ground straps. When in doubt about heat range always go one step colder. A spark plug that is to “Hot” will cause detonation, burned plugs, poor performance, and engine damage. In competition
engines always use the coldest plug available.
Never use an extended tip plug in a racing engine.

 

[junior281]

No I believed you.


Thanks guys for the help. I appreciate it.

My buddy is calling a mustang tuner friend of his right now to set up a day he can look at a my car. I'll ask him to sell me the plugs I need.

Thanks for the advice. I was hoping I wouldn't have to do this, but it's better to be safe than sorry.

 

[86bluecobra]

I knew you believed me i thought since you were not home i would look up the instructions for you and post what they said. Happy tuning. You will love the giggle gas. By the way did you get the plate system?

 

[junior281]

Thanks.

Yeah, I got a plate system. It's looks more complicated than the NOS dry system I installed in my 5.0.

 

[junior281]

The car will be looked at about 3pm today. The tuner is going to put it on a dyno and make sure everything is running right. He is installing the spark plugs. I think said he would be using autolite copper something plugs.

There goes another $100.00. sigh.

Again, thanks for the recommendations.

 

[86bluecobra]

NP mate. Have fun with the added power.

 

[junior281]

Will do. I just plan to use the 100 shot a few times at track events that are coming up on the 29th and April 7th. A few people from work will be there and I don't want to disappoint.

After that, I will just be using the 50 shot.