350ZMatt

I had upgraded my jet sizes to 150 shot 2 weeks ago. On the street the car felt brutally fast. I saw the front of my nose every time i shifted and my rear was squating like crazy!

So i went to Englishtown to check it out. I could not get traction for my life. My best run was 13.77 and I even ran a 14.4! I was all over the track. I was wheel hopping 4 out of 5 runs, and spinning my tires in 1st, 2nd and 3rd!

Since i refuse to get drags and smaller wheels, i will be switching back to my 100 shot which i know can do 13.11 all day on my 19" wheels.

My last run was next to my friends MKIV Supra turbo. He has modifications but on stock turbos he ran 11.63 @ 124 mph! And after racing him side by side, i know i will never get that fast with stock motor and nos. It was simply amazing. You know the scene in fnf 1 where the cars hit nos and the cars seem to go warp speed? well thats what his car looked like midway up the track. He left me so bad i felt like selling my car.

So for now, I will be adding 200lbs of audio equipment, and save up for my 800whp twin turbo setup. At this point, i dont see any point with any future mods until i can get to the level of my friends supras.

Hows this, a dodge neon SRT owner comes up to me at the end of the night and proceeds to ask me what was my best. I aint gonna lie to him so i said 13.77. he then shows me his time slip of 13.6, as if to say, "Sucker"

My Turbo Envy just got worse. I need to get my turbo project moving!

To do some service to the community, here are the jet sizes for NOS. These were provided by the NOS Customer Support team and I take no claim, liability or responsibilty for any use by anyone here.

N2O / Fuel

34/18 40HP
37/22 50HP
39/24 60HP
41/26 70HP
43/28 80HP
46/30 100HP
52/33 125HP
61/38 150HP (max for 1 nozzle)

MY350Z.COM

iTrader: (2)

*tsk *tsk, i keep telling you

dump the crap out of your car and run with appropriate sized wheels/tires.

PhoenixINX

Then you will NEVER be quick. Dude seriously...

You want to go fast, you have to cover all bases. You're bitching because you are now having traction issues. Why don't you get a set of 17" enthu... slap some ET streets on there... and EASILY slide into the mid 12s on that 150 shot.

If you want to stay slow... knock yourself out.

You want to play fast, you'll learn the rules.

Traffic

Get an RB26DETT.

350ZMatt

I know the rules. I know i have a low 12 second car in my garage on drags. But this car is my daily driver. Until this changes, i will continue to race it on my daily driven tires. Those are MY RULES.

Once i get another daily driver, my car will never see daily use and I will be building a race car for the street class nhra circuit and trailer hitching this all over to tracks and shows.

I am looking to save up for a Tourareg for towing and daily duties. that can tow up to 7000lbs.

Fall-Line

Sup Matt!

I missed your last run...

regardless of the E/T...the car looks sweet =)

You will be there...on 19's. have faith!

My 6000+ pound truck ran 11's. =) (at Just about 560 Horsies)

Your car WAS squatting BADLY. (in second gear especially)..

Let the guy in the Neon gloat, and let me boil it down to the most base of issues here.....how much *** IS THAT NEON GONNA GET?
=) I can do the 1/4 in reverse in my Z, and GUARANTEED SOME hottie will want to take a ride in it.

(Im really not THAT SHALLOW)

P.S. Take driving lessons from SIRMIKEL once you go the F/I route.
(ask him all about his ATI experience!!!)

haw.

Later-

350ZMatt

Thanks for the support! I dont mind squating in 1st, but yeh, I was squating in every gear up to 4th. I got loose on 3rd gear too. Kinda made me nervous.


I am not really into getting drags and swapping them in the name of racing. If someone wants to meet me at englishtown and donate tires and wheels for 1 run I will do it for curiousity sake. But i know i can run 12.7 with my 100 shot + drags. Who knows with 150 shot. I have nothing to prove to anyone here. This is a self motivated journey.

Best i ran was with 100 shot. 13.11 @ 106 mph on 19" street tires, 245/275. rear tire pressure was 18.

BTW. That charcoal Mercedes e55 ran 12.6!!! on street tires from the dealership. what a sweet a$s freakin ride! 516lb of torque from the dealership. Imagine with drags and a diet!

Slareau02

Get a progressive controller for your N20 system. That way you spray more the faster you go always staying on the edge of the available traction.

350ZMatt

I thought of this too. But I dont know if the traction gains will benefit me when i will also be playing catch up every time i shift. My 100 shot setup was perfect. No wheel spin, no wheel hop. just a smooth 13.11 mutliple times.

With progressive, the cycle of whp the no2 is giving, starts from zero every time i shift. Smithtown has had success with thier progressive. They ran 11.99 with 225 direct progressive and 75 shot stage 2 single fogger with button activation.

I would like to see how the smithtown car runs on street tires before I can conclude their progressive system was what made their times go down to 11.99.

I believe if I had their dietary gutted interior and weld racing wheels with drags, i could come very close to their ET, but not their trap speeds.

mjedens

iTrader: (3)

I'm running a Zex with a NOS splitter so I can use their pills ( a lot easier to find NOS pills than screw with Zex)! I have no idea what size shot you would consider a 55/30 to be but it looks good on the dyno (lean vs rich) and puts down about 117 RWHP! I used 16" Weld Wheels with 26 11.5 MT Drag Radials ( yes, they fit over Brembo brakes) with 14 lbs of air. It takes less than 30 mins. to switch from my stock wheels (Track wheels with 275 Kumhos) Ran the new wheels leaving the line @ 5000 for the first time Friday night- NO spin & it takes your breath away!! I'll try leaving @ 6000 next Friday along with a couple other new possibilities! E/T in the 1/8th was 7.86 with a 1.71 60 ft! (and I hit a rev limiter ) I think 7.60's is reasonable with a 6000 launch & a clean run. With what you've invested so far , a little more on tires & wheels will totally change your mind! Good luck!

Apexi350z

iTrader: (3)

mjedens, what did you run in the 1/4miles?

mjedens

iTrader: (3)

The track is just an 1/8th here in Chattanooga! A conversion table ( which doesn't mean **** to me) say's that equilavent to a 12.37 in the quarter! With my new set up , I'm having to shift into fourth just at the end of the 1/8th! A 7.64 is a 11.99! The closest 1/4 mile is aproximately 60 miles away in Alabama and I'll go there after 1 more trip to the 1/8 track. I really don't feel the "progressive shot" will be necessary to get to 11's but I'm really wanting ( or needing) an ECU upgrade of some kind but am totally confused about what to get.

chris_garey

i'm sure i have missed this somewhere along the line and please don't get too annoyed by my question but....are you shooting the NOS on stock internals? no forged pistons or rods or anything? if so, i'm impressed with this motor. i've always hear stories that adding nitrous causes a great deal of stress, more so than high power outputs at a NA level becuase of the sudden burst. but anyway...that was my question. thaks

350ZMatt

Everyone who is shooting happy juice is on stock internals. I am personally running a single fogger 100-150 wet shot. Only thing i had to upgrade was my shifting skills and colder spark plugs.

Smithtown Nissan is running same plugs, but all stock internals on their whopping 225 DIRECT and 75 shot non-direct for a total of 300shot.

Several things you want to look at when looking for NOS capacity, the engine liter, compression ratio, and GOD. The stories of engines exploding are usually from 1.4 liter honda civic motors trying to shoot 200 shots of nos.

redlineRED350z

350zMATT How come the NOS tech told me that 37/22 is for a 100 shot. And your is 46/30 for a 100 shot?

little_rod

Why do "the rules" say you need smaller rims?? I know about the weight issues and such, but what about the 19s make him not be able to get below 13.11??? Maybe I am missing something, I mean I have my 17s in the garage if needed, heh. Of course, I am nowhere near this level, lol.

350ZMatt

Two reasons:

1. They don't want you to blow up your engine. He wanted you to start off slow. I started at 37:22 as well. I barely felt the difference. The above table is straight from the tech.

2. This ratio thing, isnt an exact science. Just like each engine will dyno differently, each application of nitrous must be tuned. I just got back from reinstalling my 46:30 jets and let me tell you this, my car is definately faster with this jet size. I think the 150 shot was not setup right for the nos:fuel ratio. I am not an expert but since i drove my 150 shot in the morning and my 100 shot 10 min ago, the 100 is more effective. It might be less dyno whp, but for my current tire/wheel setup, better.

I remember at the track, black smoke was coming out of my exhaust, telling me I am running rich (too much fuel). Which means the jet ratio of they gave me for 150 shot may not be perfect. If i were to increase the nos or decrease the fuel, i probably would not have black smoke and better ETs.

But I am done tuning the nitrous. Just gonna save up for the twin turbo.

350ZMatt

The rules are not rules of racing, rather physics. I am no brainiac, but it is as common sense as rotational mass. As an extreme example, picture you have in front of you a 10 ft metal ball and a 3 ft metal ball. It would take less of your energy to roll the 3ft tall ball, if all conditions were similar and ideal for both.

Also, less wheel = more tire. Tires win races. If i had to bet for money and was given the choice of a new titanum dual exhaust that claimed 30whp or drag slicks, i take the drags!

the reason i am being stubborn is I like to race the way I drive everyday. If someone wants to run me, i am not gonna go home and put on drags and come back. I dont street race anyway.

I mean imagine if every magazine tested their cars with drags or slicks. The reason they dont is for real world applications it means nothing! I drive a hooked up 350z as my daily driver. not as a weekend race car. Once that changes and i start building the z into my race car, thats when i will have autox tires, drifitng tires, and drag tires.

350ZMatt

You're seriously tempting me to get drags just to shut people up

All the doubters

Maybe I will call Weld for sponsorship in 2004. hehe

PhoenixINX

lol... Matt, I have personally driven mjedens car... and it is NUTS. Whoever did this NOS install I give HUGE props to. It is SOLID and ungodly fast.

I drove it when he cruised up with ET Streets on his stock track wheels, and there wasn't traction to be found! Haha. Launching at 6k on slicks Mike?!?!

Dude... let me know and I WILL be there cheering you on!