13.1 at KCIR
Seems like there are lots of opinions about nitrous jet sizes, doesn't there? Some of those opinions are based on the different ways companies claim HP for their jet choices, and some are urban legends....
To quote the NX nitrous installation manual, for Nissans '92-2003 , based on a FFP of 43 psi, 35HP needs 31N/18F jets, a 50HP needs 35N/20F and a 75-shot uses 41N/24F jets. Jimes' old web site stated a 100-shot NX used a 52N/31F jet combination. Is this correct? I don't know. The 150-shot combination needed a 62N/33F set of jets... I never tried this combo.
I do know that my last chassis dyno in KC, where I used the 50-shot and 75-shot jets (using the listed jets) in one and both stages, the WHP matched the shot-level almost exactly, up to a 50-shot plus 75-shot combination which added 132 WHP to the ground. NX specs seems to be accurate.
Dynotune's jet calculator says a 100-shot requires a 47N/27F combination, a 125-shot is 53N/31F, and a 150-shot needs 58N/33F jets. I don't know if this is crank HP or WHP, but it's different. Their 75-shot jets say 41N/24F is needed, which matches NX jet sizes. Their 50-shot specs are 33N/19F - not NX's 35N/20F 50-shot jets.
So you pays your money and takes your chances - or get a bucket-o-jets, warm up your A/F meter and a bottle of nitrous and get on your favorite dyno.
To quote the NX nitrous installation manual, for Nissans '92-2003 , based on a FFP of 43 psi, 35HP needs 31N/18F jets, a 50HP needs 35N/20F and a 75-shot uses 41N/24F jets. Jimes' old web site stated a 100-shot NX used a 52N/31F jet combination. Is this correct? I don't know. The 150-shot combination needed a 62N/33F set of jets... I never tried this combo.
I do know that my last chassis dyno in KC, where I used the 50-shot and 75-shot jets (using the listed jets) in one and both stages, the WHP matched the shot-level almost exactly, up to a 50-shot plus 75-shot combination which added 132 WHP to the ground. NX specs seems to be accurate.
Dynotune's jet calculator says a 100-shot requires a 47N/27F combination, a 125-shot is 53N/31F, and a 150-shot needs 58N/33F jets. I don't know if this is crank HP or WHP, but it's different. Their 75-shot jets say 41N/24F is needed, which matches NX jet sizes. Their 50-shot specs are 33N/19F - not NX's 35N/20F 50-shot jets.
So you pays your money and takes your chances - or get a bucket-o-jets, warm up your A/F meter and a bottle of nitrous and get on your favorite dyno.
I say if your goal is 100whp than whatever size jets you need to make it happen is a 100shot
one fast max .. your too close not to give it another try at 12's
t6378tp yeah definitely need to try once more. 
what i was trying to get some opinions on was removing the power valve in the 00vi. would this give me the little bit i need? and also...should i dremel out some of the squared edges in the inside?
what i was trying to get some opinions on was removing the power valve in the 00vi. would this give me the little bit i need? and also...should i dremel out some of the squared edges in the inside?
Not DAVEB the parts guy
Joined: Aug 2000
Posts: 8,549
I would just tie it open so you can sell the 00vi later on when you do the 3.5swap
Dave, want me to bring those BFG DRs with me? I can think of a $hundred reasons to do that, if you want them.
Last edited by grey99max; Oct 29, 2008 at 07:39 PM.
Imagine an automatic transmission shifting just like your 5-spd, only quicker and more consistently. It's alive!
sorry...i know its old post
sorry guys...i know its an old thread but i was going through some old pictures and i totally forgot that i never posted up pictures from when i met grey99max at KCIR....so anyway...just wanted to share....
Harolds Car
Harolds Car
haha! if you hook me up with slicks and give me a head start then i'll think about it!! hahaha....no way my 3.5 will even come close to your nitrous 3.5 
but yes...i'd love to come up there again this summer when its better weather
but yes...i'd love to come up there again this summer when its better weather
There's always Tulsa in OK or Mo-Kan in Missouri, for something closer to you....
But KCIR in the summertime is major excitement -
unfortunately i sold all my nitrous stuff and slicks....sparks03max is the one that bought these from me. i needed the money at the time...oh well.
yeah! i can't wait to see your car go down the track! your engine better be done by the time i get up there!! haha 
yeah! i can't wait to see your car go down the track!
your engine better be done by the time i get up there!! haha
I've still got tons of nitrous to blow through the old motor with three nitrous stages, just for practice.
200-shot, here I come..
Do you have a short shifter? I swear to god, i never missed shifts, untill i put my short shifter, in, and thats how i killed my old engine...3rd gear to second gear at about 90mph and a documented 7817rpm. Blew my oil pump, but still drove another 8 miles home fine.
Anyways nice times, although your ET's seem kinda low. Ill post a video that shows how to properly hold a shifter. I Cant find it, but i think you figured it out anyways. You pull the shifter back, but instead of your hand wrapping around so your fingers would point to the drivers side, you want to do it where you fingers point to the passenger side. Its kinda uncomfortable, but it pretty much eliminates the chance of the 3-2 shift lol.
Anyways nice times, although your ET's seem kinda low. Ill post a video that shows how to properly hold a shifter. I Cant find it, but i think you figured it out anyways. You pull the shifter back, but instead of your hand wrapping around so your fingers would point to the drivers side, you want to do it where you fingers point to the passenger side. Its kinda uncomfortable, but it pretty much eliminates the chance of the 3-2 shift lol.
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