northdakota93z28

i just got my zex kit in and i am running av gas and when i hit the nitrous above 3000 it had a bad misfire so i let of. i am going to unhook my lines from my silinoids to the fogger and see if i have gas and nitrous coming out. if anyone has any more ideas i would appreciate it. thanks

northdakota93z28

75 shot

FloydSummerOf68

Are you sure the nitrous solenoid is opening and you arent just getting fuel spraying into the intake?

northdakota93z28

not sure i will check it tomorrow afternoon

juiced_lt1

Did you change to a colder heat range plug? That will cause the popping you are talking about as well.

northdakota93z28

no i didnt i was told that for the 75 shot it would work well without.

FloydSummerOf68

It's a good idea to change to a colder heatrange plug for any nitrous use.
It isn't always necessary...but its a very simple precaution to take.

Try out some NGK TR6's. You can pick them up at any napa or oreilly

2000GTP

I'd double check to make sure you have it jetted properly and make sure both the solenoids are clicking. That is something you should verify even before spraying. I would also check your plugs, you may not need one step colder plugs for that size of shot, but are you at least using copper conductor plugs and are they in good condition?

northdakota93z28

they are original plugs it has 45ooo miles on it and i was wondering how much fuel should come out because i unhook the lines and hit my switch and wot then the nitrous comes out like crazy and the fuel comes out but not alot i was wondering if that is right. and i have checked the jets alot and they r correct. so any more input would be great thanks

FloydSummerOf68

If you put a paper towel infront of it it should soak it completely.

If its not a lot of fuel coming out then maybe your solenoid is not opening all the way.

northdakota93z28

well if i just let the fuel pump prime and then try it it should do that?

FloydSummerOf68

If there is fuel in the rail, then yes.

camzaro28

What part of ND you from? If near Fargo I can get some guys to help you figure it out. Let me know
I had popping issues and it was 2 problems. opti and fuel pump. Have you put a fuel pressure on it yet?

Injuneer

The stock plugs are NOT a good choice for nitrous. They are known for losing the little platinum pucks off the center and ground electrodes, giving them a huge gap (0.070"-0.100") that the ignition system can't fire across. And for larger shots of nitrous, they have a clumsy ground strap that can heat up and act like a glow plug. Might want to pull a few plugs and check the gap.

northdakota93z28

ya i am changing the plugs they were at 80 so i am gapping them at 40 so we will c then.