Zex kit install 100 shot

2011 Nismo#91

That's terrible, it looks as if you did everything right, just seems to be bad luck. Well look at it this way you going to have a hell of a nice motor when its built.

cc370z

I'm really interested in what the outcome is for the OP. I was really thinking that I was going to go the nitrous route. it could be something with our motors... I know a couple of guys that have run nitrous on their 350z and g35 for years with no problems.

JC671

Hey bro, I haven't check'ed this thread since I last posted. I'm sorry to hear. What was the issue? Did you ever find out? I read that you data logged. Was the map you were using a tuned map or a map with timing pulled? What was done with the maps?

I have not yet upgraded my stock plugs but am switching to the GTR plugs once they come in. I read that you went with the NGK ones.

Your previous data logs before this happen what was your AFR?

My quarter mile data logs that I did with the a 100 shot and stock map reads that I'm running super rich at 10.xx. Randy from Uprev suggests that I less the fuel jet maybe a little and re-datalog it.

I prefer running on the rich side than running lean and a situation like this happens. I prefer that he tunes it through the AFR than for me to mess with the jet setting.

I did run into the Zex box not spraying. I'm too far so and I ended up just purchasing another one. It works like a champ now everytime.

I wonder what happened in your scenario. You took all the precautions like I did and I got all the safety devices as well.

I've been running almost two years now on the bottle but only during the weekly drags and during spirited drives for datalog purposes for tuning and have not had any issues. Only issue was a faulty box not firing.

Please bring us up to speed as to what is going on. Again, I'm sorry to hear.

JC

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V8Killer

I am over in Afghanistan again at the moment and haven't been here in a while but I will update what I can. So it is looking like the guy that tuned my car pulled too much timing out. I had a map for on and off the bottle which obviously it ate my plugs alive. The thing is I was over cautious I should have never gotten a tune for the nitrous b/c our motors can handle it. The zex box ya as soon as they replaced it I was good to go. I guess those are just hit or miss. My buddy is actually going to be pulling the motor out here in a couple of weeks and finally get down to the bottom of this and see what is going on. As I get the information I will be posting. I am looking at some upgrades though while we have it apart. I am looking to up the shot to about150 so fingers crossed

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"Punch"

Too much to list and a baby shot of nitrous....

V8Killer

I'm out of town for the moment but I will be doing a motor swap or a rebuild.

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"Punch"

Too much to list and a baby shot of nitrous....

370ZNISMO#704

Just looking at those plugs I would of never tried to start it looks like you have three plugs missing metal which 90% sure it's in the motor. So by starting your going to scare the piston walls which will let oil in past the piston ring. I would be trying to get a small long magnet to put in there to see if there are metal fragments left. Looks like your gonna have to pull the head. ON THE BRIGHT SIDE you could try the new exhaust cam sense your gonna be in the motor anyway. Best of luck

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V8Killer

Just an update. We are doing a compression test tomorrow and hopefully all is well. If that passes then it should be something on the fuel side which could mean the fuel injectors. The car starts up just fine, no smoke, no weird noises except for a faint tap which could be a fuel injector or a bent valve. We won't know until we do the test. My question is does anybody know of anyone on the forum who has stock fuel injectors up for sale? I called Nissan and they want 150 a pop.

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"Punch"

Too much to list and a baby shot of nitrous....

Mkai0

I have stock injectors from G35 HR Sedan that I could sell you. That is if they fit.

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V8Killer

What year? Does anybody know if they will fit?

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"Punch"

Too much to list and a baby shot of nitrous....

esfourteen

i have stock injectors, shoot me a PM.

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valpozguy

I will have some for sale in about a month when I get my car back from s and r performance

sent from my SAMSUNG- SINGLE TURBO SGH-1717

Big J

Bumping this thread back up.

Are you guys running wet or dry kits? I'm not new to nitrous at all but have always used wet kits. A friend of mine is giving a good deal on a brand new zex dry kit and I was thinking about hooking it up. What do ya'll think?

V8Killer

Yes do not use a dry kit no matter the deal. Reason my thread is stagnant is bc I'm overseas. My buddy is working on my car and I am bumping it to 150.

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"Punch"

Too much to list and a baby shot of nitrous....

luigi90210

can i ask why you say that?

imo dry kits are just as reliable if not more reliable than wet kits when tuned properly(well with intake foggers at least, direct port is the best way to go imo), the intake manifold is not designed to flow fuel so you could be running lean in a few cylinders while running rich in others(IE cylinder 1&2 could be running rich, 3&4 could be perfect, and 5&6 are lean because they are the furthest away from the TB)

not trying to be a pain or start a flame war here, just being the devils advocate

V8Killer

Sorry for getting back so late, I am still in Afghanistan. Okay so Yes Direct Port is the best way to go but those are usually used for bigger applications around 250 plus which obviously I am not doing. I should have stated running a wet kit is preferred b/c as you know dry kit you only spray nitrous, wet kit you spray nitrous with fuel. I am no where saying I am a nitrous guru and I get your playing devils advocate. What is the biggest shot you have done with dry? In my experience I generally don't hear a lot of people going big with dry kits. It is to my understanding that when you run a dry shot you are betting on the fuel system to compensate on it's own? That means your putting all your trust in the vehicle figuring out what to do once nitrous is added vs the fuel already going in with the nitrous at the same time.Your application is going to dictate which kit to use. I believe that wet kits are safer, and they are also highly recommended and if you ever want to go FI you can keep your wet kit and apply it to your setup. In the end no matter which way you go TUNING will always be the deciding factor.

So just an update, I bought a motor from Z1 b/c well it was easier then going through to see what was messed up in the old motor. I bought a new bottle bracket with a built in heater that will come with a kit to dictate how long the heater stays on depending on the bottle pressure. I will still be going with 150 just gotta find the right guys to tune it once everything is set up. Bought a few other misc. things like a bunch of red silicone hoses, back up light, stealth blinker lights, twm short throw shifter and I am sure I am forgetting a few things. Should have the vehicle running in about 3 weeks. Then back to tuning. Those of you still running nitrous I'm jealous! Has anyone gone beyond 100? Numbers on a dyno?

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"Punch"

Too much to list and a baby shot of nitrous....