Rep Power: 0

I raced my LX last night against my friends EX on a road beside our workplace (no traffic). Anyway, I used my 50 shot and I sprayed in the 4400-6200 rpm range in 2nd and 3rd and when I let off of it, the engine almost died. It was idling real low (around 200-300 rpm's). It was fine after a few revs. I guess it loaded up or maybe lost some fuel pressure. I didn't get to look at the a/f gauge to see if it was running rich or anything. I was just wondering if anyone else has had this happen to them before?

 
Rep Power: 811

yea nitrous likes to ruin engines that weren't built for it.

 
Rep Power: 350

If you're not running management and are not tuned, you're asking for trouble. Has nothing to do with the stock engine handling the power.

 
Rep Power: 298

Speedster, Im not sure what exactly caused the low idle, but i know that to much fuel inside the IM or TB will cause a low idle. Check your A/F ratio and make sure your not puddling fuel inside the TB or the Manifold.

Also

What spark plugs are you using?
What octane of fuel are you using?
Have you cleaned the soleniods yet? They recommend that you do after 3 bottle refills.

 
Rep Power: 0

I'm using denso IK20's and running 93 octane. My a/f is around 11.5-12:1 when spraying. This is my second bottle refill. Do you think I should try to get some smaller fuel jets and try those? Hey Dizzle, what is the exact name of the kit you sold me. I pulled up the instructions off NOS's website for the universal 4cyl-6cyl kit (Part #: 05130NOS). This is where I got the jet sizes from. You said the jets you sent with the kit were the 50 shot, but it didn't match up with the sizes I got from the instructions. This is the correct kit right?

 
Rep Power: 295

Ive had my car completely shut off before after a race... I think its like what another member said about it running extremely rich when you let off the nitrous.

Whats this thing about cleaning the solenoids after 3 bottle fills. Ive never read that anywhere. Can anyone provide a link about that. I would like to read up on it and such.

 
Rep Power: 298

Yes it is the NOS 05130NOS universal kit. More than likely i had the jets sizes mixed up. Speaking of which, i recently found the instruction booklet that came with the kit. PM me your address again and ill sent it out to you today.
According to the manual 50 shot should be 30/22 jets.


Edit~ Id get some IK22's and some 100 octane (if you can get it) tune around 12.5-13.0, running in the 11's is to rich, youll blow your intake manifold if your not careful

 
Rep Power: 319

nitrous does not blow engines if done properly...idiots who install nitrous ruin engines

 
Rep Power: 298

Taken for NOS manual page 18

Chapter 6 Routine Maitenance

When nitrous bottles are refilled they can become contaminated wtih debris, If the refiller does not have adequate filtration in their transfer pump mechanism. Contaminates in a bottle will eventually become lodge in the nitrous solenoid filter fitting.

You should periodically (after 20-30 lbs) examine the mesh in the nitrous filter for debris

To clean the filter.........................

1.close the valve on the nitrous bottle and disconnect the nitrous feed line.
2. remove the feed line from the solenoid. then remove the nitrous filter fitting from the solenoid.
3.Remove all teflon paste from fittings
4. Examine the mesh filter for contaminants, blow out debris with compressed air.
5. apply fresh teflon
6. reconnect the main nitrous line to the nitrous soleniod

 
Rep Power: 0

I installed it correctly. In fact, I've probably got more safety features on this install than most people have on a nitrous setup. I think it just needs a little tuning.

 
Rep Power: 289

Is your bottle pressure at the right level? If your bottle pressure is too low, you will run rich no matter what because you have the jets at 50 shot but the bottle can only spray a certain amount.
When I had my nitrous, if the bottle wasnt at right temp for example too low of a pressure, my car would usually idle very low after spraying and eventually die, but I can start it up no problem again. I suggest you check your bottle pressure before spraying, make sure its at the right pressure, then see if your car dies when spraying.

For some reason, my car dies alot and idles low, I think its cause of tuner, I told him to put me in safe level so he ran me pig rich, but It hink I need a retune cause my car keeps dying only when i reverse and move the steering wheel.. car runs too rich, what did you mean if you run too rich you will risk blowing your intake manifold..

 
Rep Power: 289

do u have a warmer? is it at the right pressure when you spray that the car dies? there isnt much tuning to a wet kit except for changing nozzles, I dont recommend it cause its your bottle pressure thats causing this issues, so if you change the fuel nozzle to a smaller shot maybe you will run perfect but when the day is hot and bottle pressure is at perfect level you can run too lean cuz you wont have enough fuel..

 
Rep Power: 0

BINGO!!! I think we have a winner...I believe he is right because the same thing used to happen to me on occasion after running the juice. Its the fuel line after the fuel solenoid that is draining into the intake after spraying.

 
Rep Power: 323

to avoid this, after spraying, drive a bit before parking.

 
Rep Power: 327

Yup same thing used to happen to me, if you were WOT spraying and all of the sudden snap OFF the throttle it would on ocassion die or run rough untill it cleared out the extra fuel. My suggestion is to ease off the throttle after a spray. It mostlikely has nothing to do with the tune.

 
Rep Power: 0

Yes, I have a heater. I run it at 900psi. When I raced that guy I had it at 950. That idea about the fuel line makes alot of sence. There probably isn't a way to help that is there? I might try to find a shorter supply line to the nozzle. Maybe that will help. Thanks alot guys