My Direct Port Nitrous Build

716Spec-V · 2008-08-13 17:52:56

Well im proud to say i just got a NOS direct port nitrous kit off se-rman6 for a super cheap price!!! the only thing the kit didnt come with is nitrous jets, and bottle brackets which is no big deal and super cheap to get. I plan on running a 125 shot on a progressive controller with all the trimmings. I made this post to keep you all updated on my build and to also ask questions along the way, which brings me to my first question, what jet sizes would i need for a 50 shot, 75 shot, and a 125 shot? and as soon as my digital camera gets fixed ill post as many pics along the way! stay tuned!

Ryan · 2008-08-13 17:54:32

good luck man. You doing this on stock internals?

saint0421 · 2008-08-13 17:55:25

125? Dear sweet baby jeebus. Good luck to you man

716Spec-V · 2008-08-13 17:58:03

it can be done! im just not shere how safe it is! but if its tuned properly with all the trimmings and a progressive controller the shot should come on as gradually as boost would and not be so harsh on the motor and weak rods.... so im not really shere lol....

Last edited by 716Spec-V (2008-08-13 18:02:15)

The Pitt · 2008-08-13 18:03:53

divide 125 into 4 equal size shots for each cylinder and get 31.25 size shot for each cylinder. google a nitrous calculator and enter your fuel psi (52) and nitrous psi (usually 1100ish, depends on what psi you make it run with a bottle warmer) and it should give you what size jets you need to order. i always ordered 4 of each size of course plus extra close sizes to get that perfect afr on my wideband. good luck!

716Spec-V · 2008-08-13 18:12:30

Thanks!!!! deff the answer i needed and IT CAN BE DONE!!!

red02v · 2008-08-13 21:20:27

125 direct port, you have big ones!

Very cool, good luck!

716Spec-V · 2008-08-13 21:43:42

i love my balls for being soooo big lol.... well see im prob ganna start with a 50 shot and work my way up from there! im new to nitrous so well see how things go. But isnt it true with a progressive controller nitrous dosent come on as fast but gradually like boost? if so wouldent it work the same as boost and not be as harsh on the motor like an instint shot?

Last edited by 716Spec-V (2008-08-13 21:52:18)

The Pitt · 2008-08-13 21:55:09

dont start at a 50 shot itll feel less then youre expecting. as for the progressive controller, get one that is time based, start it at like 50% of the shot and ramp it up to the full 100% shot of whatever size (125 in your case) over like a 1.5 second time frame. i personally had the harris speed works nitrous controller and after figuring out the wiring it worked like a champ. i hope you have at least the basic bolt ons, i/h/e and take it to the stealershit to get the timing retarded at least 2 degrees, run every nitrous safety procaution and get a wideband to watch afr's.

716Spec-V · 2008-08-13 21:57:41

deff man youve been my biggest help ill keep you posted! also if you have a wire diagram for that controller you used ill need it lol...and by the time nitrous gets installed ill have i/h/e/mmi/$4 wheel hop aid and nismo suspension

The Pitt · 2008-08-13 22:06:34

feel free to PM me if you have any questions too man. as for the wiring diagram, it should come with fairly clear instructions and i think there are even a few wiring schematics posted up within the NITROUS threads. if you really want to do the 125 shot i wouldnt skimp out on any parts, get everything: retard timing, colder plugs, progressive controller, tps switch, window switch, bottle heater and guage, fuel psi saftey switch, fuel pump and a widband O2 sensor.

716Spec-V · 2008-08-13 22:32:59

planned on all of it man! and ill deff keep you updated thanks again!!

Yogi B · 2008-08-14 08:30:54

Wow!
Looks like this will work
I think the engine [qr]is stronger than we think
You just have to approach it right
Progressive application coupled with the dp precision
Is the right way and probably my next step too [on vq next spring]

Wishing More than luck to you
Good hunting

716Spec-V · 2008-08-14 19:14:37

thanks, still getting parts together.... hoping to have it done soon! and gl with your swap!

Last edited by 716Spec-V (2008-08-16 03:02:00)

red02v · 2008-09-15 23:34:53

Any progress on this yet?

se-rman6 · 2008-09-16 00:21:52

Im pretty sure hes not doing this anymore cause he bought an eloy turbo kit off 03vslow.

716Spec-V · 2008-09-16 00:26:05

nope man sorry i ended up selling the kit to a local club member but i deff did alot of research and know all the ins and outs about nitrous for this kind of a shot on the qr so if you have any questions feel free to ask but as matt said i bought a turbo kit so im going boosted now

red02v · 2008-09-16 00:36:26

Eh, I ran a 100 shot direct port on mine for about a year before I switched it over to a single nozzle 75 shot.
Still may switch back to the direct port though.

716Spec-V · 2008-09-16 00:42:07

yeah single nozzle is nice but just didnt seem right to me...so thats why i went direct port instead. plus direct port is more reliable and safer. i would love to see some pics/vids if you got ne?

red02v · 2008-09-16 07:50:05

Pics of my n2o stuff are in here: http://myspecv.com/f/t161785.html

Never made any vids

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