here is the problem I am running a stock 92 civic cx motor right now. I got the motor on bottle right now. When I spray it though at say 3000 rpm it runs real strong plenty of fuel. When it reaches 4300 rpm the a/f meter goes lean all the way over. So could this be the map sensor not letting enough fuel in or what else
could it be? (i know what everyone is going to say"do a swap" I will when I get the
money but for right now this is all I got)

Thanks for all the help. y0!

 

what are you using to add extra fuel? anything?

 

190lph holley intank fuel pump.

Do you think it might need a inline fuel pump to boost pressure?

 

Please list your entire nitrous setup


[Modified by RioNinja, 1:56 PM 8/16/2002]

 

here are some pictures if this helps. All it is, is the 1.5-1.8l N.O.S setup plus a N.O.S purge valve,N.O.S bottle heater,and N.O.S bottle blankets.



If they anything else let me know.

 

Im gonna need 2 of the big ones.....and i need them tonight!

Sorry, couldnt resist.

 

I think hes asking what kind FM you are using. Other then the pump. you might need a FPR and injectors for you setup.

Just my 02 cents Blaze

 

yea i thought about after i put that on there but for everybody else only reason
i did that is so you can

1. keep up bottle pressure
2. i shouldn't run out at the strip

 

I live my life a Burger at a time....

 

The fuel pump is all I have.

And this guy

 

i knew that was coming as soon as i saw that pic

Rob

 

Mr. Stay Puff ownz j00!!!

 

hehe

 

Problem is, you are going to need some way to add extra fuel. Thats why your going lean. Think of nitrous as super concentrated oxygen. Well, your gonna need some extra fuel to go along with it. I'm not an expert on it, i never messed with it personally. You'll need something along the lines of a fifth injector. A lot of setups will tap into the fuel supply, and inject additional fuel right along with the nitrous, commonly called a wet system.

What i would do:
Go to the junkyard and find a cold-start injector. This can commonly be found on a ton of different cars, such as older VWs, Saabs, Volvos, etc.
Tap this right before the throttle body. Make sure you get the fuel supply line and banjo bolt along with it. Using the banjo bolt, you should be able to piggy-back it right on top of the stock honda fuel line, right as its coming out of the fuel filter.
The cold-start injectors use a standard fuel injector style plug. Just ground one side, and wire the other to the same power wire that activates the nitrous solenoid.
I have seen a couple different size cold-start injectors, so grab a few. The size of this injector will directly dictate how much spray you can safely use.

Of course, you might want to just buy a fuel enrichment setup from NOS/ZEX/etc, but thats just how I would do it