Made up my mind to install nos....i'm doin a bunch of stuff like lts cam...intake...headers..open element....got rear end done....shift kit....now about the nos....i'm prob gonna go with 100 125 nos shot....i need all the info i can get about how i can boost the fuel and the gauges i will need nos psi and fuel psi guage....i know to go a step colder on the plugs....and i have a hipertech chip...i know i should get a timing retard box to....i need info on what i need.... i think the kit a need it #5151.....any information would be great....especially if someone has a car like mine with similar setup....? and tips or tricks also and setup specs maybe
thanks allot
nathan

 

I'm assuming you have a tbi? The fuel pressure in a tbi 305 is 9-13 psi. Optimum Nitrous pressure is 800 psi. Some people don't have to retard their ignitions or run colder plugs as you read other posts. Some have even run Nitrous with their aftermarket chips with no problems. To start out with make sure your fuel pump and ignition systems are working properly and your car is tuned up. Next I would put back in the factory chip to be on the safe side. You don't want to advance the timing on Nitrous or you'll get detonation. Also, always run 93 octane fuel when using Nitrous. 93 octane fuel burns at a slower rate than 87 octane that's why forced induction engines (turbocharged, supercharged, Nitrous) have to use it to guard against detonation. You'll just have to see what works in your application.

[This message has been edited by GKK (edited October 22, 2001).]

 

that's the same kit i'm using, i'm not sure on your engine differences but i can tell you what has worked for me.

first off make sure everything works on your car normally before you start; ie: fuel system, ignition, etc. basically all the maintence things (fuel being the most important). it's very important that your engine runs at an optimal fuel ratio when na, you don't want to be running lean when you hit the bottle.

After your fuel system is up to par and your engine is running at a good fuel pressure rating NA giving an optimal rating (somewhere in the 12's depending on application) you should be ok to hook up your kit.

personally i haven't had to gap my plugs any different but i suppose that depends; i would definately make sure you don't use an aftermarket chip. NOS likes to run their kits very rich from the start so be prepared to tune your kit with different jets which are sold seperately. i know they say a 42 for fuel and something like a 53 for nos, but i've had to change that completely to even feel any gains.

basically besides the kit itself this is a general list of some things i've needed to finish the job. (you probably won't need all of this, but i had to make sure it's running safely.)

i've had to:
replace my intank pump
add a in-line ATI booster pump
change my fuel filter
add a adjustable fuel pressure regulator have access to a wide-band (or something to accurately check my 02 readings)
purchase an nos pressure guage
purchase an electric fuel pressure guage
purchase an air/fuel ratio guage
purchase more braided line and fittings to hook up the fuel and n20 guages
purchase a fuel pressure safety switch
purchase a rpm module w/pills
purchase many NOS jets to test and tune
purchase a NOS bottle heater
purchase a NOS purge kit
and the worst part........
purchase n20 at ruffly $40 a fill

it's been a long, hard, and expensive road to get this thing running and i'm still trying to tune it perfectly; but one thing is for sure, when it hits you'll know it and you'll love every bit of it