Nitrous build is finished
 

I don't have dyno numbers but as my dad used to put it " it pulls like a raped ape"

I can't seem to post everything from my phone but the info is:
Zex nmu, zex window switch, zex purge, picked most of it all up on eBay some used and some new I have about 750 in it all so not bad for a 75 shot. Take a look at the pice in my album I tried to keep it clean and hidden, let me know what you think! Thanks for checking it out!

in for videos and numbers

Very nice, are you using a window switch and bottle heater as well? I used to run a 125 shot (wet) in my 350Z back in 04. Zex kit as well. I had it set to spray between 3,000-6,000RPM at 90%+ throttle.

Don't spray for more than 15 seconds continuous your cylinder temps will get super hot, I stretched my rods to the point were they tapped the heads playing with a 911 turbo :)

Have fun!

-George

Thanks! Yes window switch is set 3500-7100, with 1st gear skipped, on an at when u hit second ur still at around 6000rpm, and 3rd is 5500 plus so with running a 1/4 mile I haven't sprayed into fourth gear.

Nice set up. Post up more pics!

That is good, Only thing I would recommend is to lower the window switch to around 6500 RPM, if you are shutting it down at 7100 the momentum can still carry the engine speeds past 7,100 if you are still WOT.

Just a safety precaution so you can enjoy the bottle for a long time :) Once you get tired of filling it up all the time you will eventually go turbo like I did, at one point I would have 3-4 bottles in my garage ready to go, started getting too expensive lol

-George

Good job
 

Nice and welcome to the Nitrous Club;)

I think I'm the longest running tenured Z here on Nitrous with zero issues except a bad NMU at one point. Good luck, be careful and you will need other things when you go up in shot. I'd like to see more pics of where you tapped your nozzles to if your only using mad tubes.

It does get expensive to run nitrous. Especially out here on the island. I have bigger plans though for the future. Cheers:tiphat:

G- thanks I'll lower the rev ASAP, great advice!
Jc- thank you I tried to keep it all hidden so if you look at the bottom of the tubes you will see the nozzles, I painted them black so the didn't stand out, check the album on my profile please it's great to get input from the guys who have been there done that, this form is great

Curious to know what this car does in the 1/4 with a 75 shot...

Any other upgrades done? colder plugs, etc?

im waiting for someone to nitrous with a meth injection system, maybe with a bit of nitro mixed in to really test all the "you'll blow your motor" myths out.

something like a snow performance kit with this in the tank
Torco RC Fuel 20 Nitro Car Truck Gallon | eBay

also what do you guys use for the fuel tap? i was thinking of using one of the gtm fuel pressure sensor blocks if i do it.

No problem, if you don't abuse it, you will have a reliable setup that lasts a long time.

500rwhp is 500rwhp regardless if its via nitrous, supercharger, or turbo charger. The only difference is that the torque will hit much harder and will increase stress.

If people are making 500rwhp reliably you can do the same with a proper nitrous setup, just will cost more in the long run and you can run out of boost ;)

-George

I said myths didn't I? well the nitro blowing your motor isn't a myth but that all depends on percentage, 20% in a meth bottle and then shutting the injection off and letting the engine run the nitro out after the run should prevent it. Watching top fuel guys rip plugs out of an engine frantically flushing it to keep it from going boom is great. If only the nhra had the stones to allow hydrazine lol

Also I am assuming you have a wideband A/F ratio gauge to make sure you have the proper jets, I would recommend one with logging capabilities and you can tune your A/F ratio by swapping jets.

Also if your jets get clogged you will notice you are running lean and could save your motor. Its important to have the proper instruments ;)

-George

You know, I would love to put my vids whenever I have time but it's nothing to write home about. Our track's density altitude here is2,338 ft. and 501 ft pressure altitude at 479 ft above seal level. Humidity is year round at 78-90+ At nights and temps of 77 low - 90+ at night.

Add all that against you and our entire track is not prepped. It's a coral mix. It's so slick it's like taking off in marble tile.. 1st/2nd gear useless even with drag radials...So my times here in Guam is nothing to write home about in the states.

I hit 12.7@115mph, spinning 1st and 2nd ... That's off a 100 shot... I have hit 13.2@107mph all-motor just for reference.. Stock block, stock drive train, stock head, just bolt- ons with UpRev -Etune... I plan to do more but planning to go boost down the line as it does get expensive and you can't ride around town in 90+ degree weather with two bottles strapped in the back lol.

is the zex kit for the 350z the same for the 370z?...i was planing to go dynotune kit!!...are they a good brand to go with?

Well its not really a myth that you'll blow your motor running N2O, just like its not a myth that you'll blow your motor running a bolt on turbo kit.

Its all about how you set it up, thing is a lot of people cheap out and buy the $400 dry kit with a manual switch and these people never set anything up properly and run like a 100shot dry without a tune.

If you set up N2O properly than you'll be just as reliable as someone setting up a turbo kit properly.

How reliable do you think the torque app would be for a/f, it shows me rich now so I don't think I'll be changing anything until I get a tune even them I may just stay with the 75, I would love to show big hp numbers but I have so much wheel spin now I don't see the use for it

The one everyone is using from zex is the 350x kit for the later models, from what I can tell zex's attraction is the wot switch is unitized with the soleniods other than that I think there isn't much difference I know there is a lot of brand loyalty, so if your buddies are using one brand and u get another prepare to argue

Torque is very accurate as the reading you are seeing is exactly what the ECU sees. There is debate that the Nissan sensor isn't accurate and blah blah blah, but your ecu makes adjustments based off the stock sensor not some wideband that's welded in and connected to a gauge.

What's your AFR when you're spraying? Also how does the 75shot feel?

That's good news to me the app actually seems to work really well, I just bought a phone to keep in the car,the afr off spray is reading 13.6 or so on spray it's running 13.4, I didn't mention before that I ran the nitrous line thru the firewall on the drivers side because the additional 36" or so of line will help with lean spike.

The 75 shot feels good it's not throw u back in the seat it anything, more that the car revs quickly there's isn't any waiting to shift I guess

Has anyone tried Nitrous and FI?

Op are you running colder plugs or may I ask what plugs are you running (Preferably part number please) as ill will too go that route but 100 shot?

As I'm staying with the 75 shot I did not step down my plugs everyone does recommend stepping down at 100 though I don't have enough traction with the 75 to even worry about more maybe when the stockers wear down I'll step up in the tires

Finally others doing spray on this car! OP u may want to consider a progressive controller to flatten the initial torque spike in the early rpms and/or eliminate wheel spin when moving beyond the 75shot.

More pics of the layout (switches, bottles, fuel tap, etc) would be nice for others.

I am a fan of nitrousoutlet.com. Well made universal kits with jetting rated at actual whp/wtq like NX.

Thanks! more solid advice, as I said the traction is a small issue it's wiggly in third so a progressive controller beyond the 75 should probably be done, and yeah I don't see why more aren't spraying their car when like every other car forum is full of nitrous lol

I would tune your kit to run 11-12AFR @ WOT for safety on a stock motor, especially WHEN you decided to move up to 100-150 shot :P

Yeah WHEN haha, I have been waiting until this was finished before getting a tune it should help get the setup just right. uprev seems to be the answer, does anyone have a recommendation for a tuner in north central Florida?

If I were to do the install myself on everything, George I am assuming I could make the trip down and have you guys do the tuning There isn't a shop here in seattle that feels comfortable doing this, nor do I trust after speaking with them. If so what are we talking price for a tune on N20?

Japanjay, you could also E-Tune... Same situation here in Guam. No Dyno,no tuners. Just data log runs and send for etune, receive tune, then flash.:tup:

A dyno is of course the most accurate but when dealt with situations. You must do what is available.

So your saying I can request for a nitrous tune from uprev and dump it onto our ecu??? Reason I ask is because I'm waiting for my NGK Dilkar8a8 plugs and all I would need now is the tune for my 100 shot build????

I was thinking about doing this to the Z but just a small 50 shot!

Anyone have a write up on how to install a kit like this with the window switch etc....?

In short yes. Data is data. Whether you log for n/a, turbo, s/c, or nitrous. You must be able to log your own data while under nitrous and in turn, email that to UpRev or your tuner of choice. Ensure your go with a reliable tuner when tuning for nitrous. V8Killer blew his motor because his tuner. If I remember correctly pulled too much timing. I'll let him chime in if he chooses to to share his experience.

Understand as well that when you pull timing and your car doesn't spray while ion that load. You will run substantially slower in the quarter mile due to pulled timing.

50 shot? Why? Even 4 bangers can handle a 50 shot with no tuning just fine. You probably won't even feel a 50 shot as significant as a 75. You can run a 75 shot all day with no tune and stock mapping and plugs with no issues.

so what a safe shot for the z with out tuning?....i talk to uprev in austin tx(1 hour away from me)....and one of the tuners told me that they can make me a nitrous map and a n/a map!!...but to make sure i switch maps before i spray...lol

Dude am like 6 hrs away from them I'm over here in hidaldo county.....any who I might just give em a call then since I dont trust spraying 100 shot without a tune I mean ill be having the one step colder plugs but still.....OMG! I HAVE A BIG BIG QUESTION?? How many runs (1/4 mile wise) can the plugs handle until I have to change them?????

Everything you will find says a 75 is fine without a tune but retune and plugs when u step to 100, I have seen many running more than that on the 370 the 350 guys are running more tho..

And yes a 50 shot is not going to be anything like what you want,