Jump to content
SAU Community

Nitrous Kits

R32 GTSTT

By R32 GTSTT,
in Engines & Forced Induction

 Share

Recommended Posts

rev210 Grand Master

rev210

Posted
Posted

Zex are crap. leave them alone. Poofter purple bottle and all.

Get the kit the professionals use. In Oz it's not a bad move to get the Ozrace kit, then BOC can fill the bottle.

I'm using a NOS kit , that is a little modified with my own choice of custom parts.

Link to comment
https://www.sau.com.au/forums/topic/22421-nitrous-kits/#findComment-481099
Share on other sites
Vovan Enthusiast

Vovan

Posted
Posted

Zex is better than NOS comparing price/quality (though depending on what NOS you use). ZEX can work good on small N2O pressure, which can't do NOS (i mean cheap systems). of course, there are good NOS systems, but they cost a lot... It's sure better to buy direct port system, but are you sure that your stock engine will handle it?

Link to comment
https://www.sau.com.au/forums/topic/22421-nitrous-kits/#findComment-481491
Share on other sites
rev210 Grand Master

rev210

Posted
Posted

If there is one thing you need to be sure of when putting a nitrous system together it's quality. Zex is a 'get what you pay for' system. It's cheap. You don't want a 'cheap' nitrous system it will only let you down. You want a 'proven' nitrous system and NOS is one of the companies that offer this.

If the budget is a concern then go 'local' and buy an OZrace system, they are far better than the Zex and offer excellent backup service. If I had to buy new I'd consider Ozrace, NOS or NX. The other thing is you can mix and match components from each company.

Link to comment
https://www.sau.com.au/forums/topic/22421-nitrous-kits/#findComment-482044
Share on other sites
rev210 Grand Master

rev210

Posted
Posted

the direct port system is not always the best choice. If you run a system of only 150HP then the jets for each pot are so small that they are easy to block, not a good thing. Filters can help but over time the jets still seem to get clogged a little and even the smallest restrition changes the mixtures.

At levels of 150HP or less the single fogger works better.

Link to comment
https://www.sau.com.au/forums/topic/22421-nitrous-kits/#findComment-482047
Share on other sites
Sciby Experienced

Sciby

Posted
Posted

Of course, a nitrous system is fine on the track... but what's the legality of it being installed and active on the street? Anyone know? Might do some research after lunch as well...

EDIT: Well, according to the OZrace site, it's illegal in Qld and WA to drive a car on the street with a nitrous system installled. Other states, it's allowed to be driven on the street with it in, but has to be disconnected from the engine.

Link to comment
https://www.sau.com.au/forums/topic/22421-nitrous-kits/#findComment-485159
Share on other sites
nv033 Community Regular

nv033

Posted
Posted

with the rb motors, actually any motor...especially the way the throttle body was designed...pistons 3 and 4 are subjected to the most pressure coming from the exhuast side...the motors are not designed to except this sort of forced induction, when dealing with a highly volatile product such as nos which can drop engines temps dramatically.. it is crucial that there is equal amounts of pressure entering each piston/cylinder...hence a six fogger sys would be ideal...because u can adjust the amounts a nos entering each cylinder individually as the pressure in each cylinder is not always the same. By running a single fogger the distribution of nos would not be uniformly spread and hence it is only a matter of time.... by all means it will work..but when stressing the motor to these extremes... everything needs to be as close to perfect as possible to avoid something giving!

Link to comment
https://www.sau.com.au/forums/topic/22421-nitrous-kits/#findComment-486471
Share on other sites
rev210 Grand Master

rev210

Posted
Posted

amu,

Couple of things.As a point of correction nitrous is not 'volitile' by definition, it increases the pressure of the combustion process (as is required with any increase in horsepower). The pressure/ horsepower increase allowable is determined by the limits of the engine construction.

The tuning of the single fogger may often mean if you have a airflow distribution problem in the plenum (as the RB25 doesn't really) going a tad richer on the mixture side perhaps with a lower overall power output as opposed to the direct port system but, none the less completely safe.

As you may or may not know the tuning of nitrous requires the inspection of all pistons condition as indicated by the plugs. I can assure you in the case of my engine there is no problem.

Going to much larger (200+hp) applications justify the use of a 'direct port'.

Link to comment
https://www.sau.com.au/forums/topic/22421-nitrous-kits/#findComment-486628
Share on other sites
2rismo Grand Master

2rismo

Posted
Posted

What an awful lot of rubbish there is on this post!

ATTENTION: Everyone reading this thread: Please read the post directly above this one if you wish to read something that ISN'T absolute drivel.

That is all.

Adrian

Link to comment
https://www.sau.com.au/forums/topic/22421-nitrous-kits/#findComment-486761
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • PranK
      New Skyline will be RWD and manual

      By PranK · Posted

    • GTSBoy
      Nismo GT Pro LSD configurations

      By GTSBoy · Posted

      No, you're wrong, and you've always been wrong about this. The Nismo has 2 sets of openings. One is a real 2-way, and the other is a 1-way. There is no 1.5-way possible with the ramps that they offer. A real 1.5-way does exist. That Cusco stuff I posted is a prime example. If the forward drive ramps are, say 55°, and the overrun ramps are, say, 30°, then you will get about half as much LSD effect on overrun than you do on drive. It is real, it realy works. OK, you're slightly right. The Nismo has 55° and 45° ramps on the 2-way, so it does offer less LSD effect on overrun. But, I think that just means that they've (probably) sensibly established that you do not want actually equal LSD effect on overrun. You just want "quite a lot, but not quite as much as the drive LSD effect".
    • DraftySquash
      Newbie from VIC

      By DraftySquash · Posted

      Just wanted to unearth this and post my baby with the new front ❤️😝 Took her to my wedding rehearsal today. Next up is getting wide skirts (after wedding)
    • Kinkstaah
      Nismo GT Pro LSD configurations

      By Kinkstaah · Posted

      Yea, that is what I was getting at in my ramblings too. The nismo one actually is a 1.5 way and a 1 way. They don't do a *2* way because a true *2* way would have equal ramp angles. Or is that a true 1.5 way? Realistically I think a "1.5 way" does not actually exist. A diff can either lock in two directions or one. It also doesn't help that a LOT of people in Australia speak about 1.5 way diffs are referring to their 1 way diff.
    • GTSBoy
      Nismo GT Pro LSD configurations

      By GTSBoy · Posted

      Well, the trouble with that ^^ is: The configuration shown is absolutely a 1-way, not a 1.5-way. There is no way that a 1.5-way can be said to offer LSD action only on acceleration. If Nismo cannot get that right, then it is impossible to believe their documentation. That ^ is not a 1.5 way setup. That is a 1-way.   And so now I have allowed all doubts to flourish and have gone back to look at the MotoIQ video. I originally made the mistake of believing him when he said "this is a 1.5-way" at the ~6:10 mark. Because what he did was take the gear assembly out of the 2-way opening and just rotate it one place to the left to drop it into the 1-way opening. When he dropped it in there, the cam was "backwards" compared to the correct orientation shown in all other photos of that config. The flat shold have been facing the 1° ramp side of the opening, not the 55° ramp side. And I thought, "gee that's cute", but I was concerned at the time, when he put the other ring back on, that the gap between the rings looked like it was wider then in the 2-way config. And then I said a lot of things in my long post on Tuesday that could only make sense if the guy from MotoIQ was correct about what he'd done. BUT... I have now done my homework. I grabbed a frame of the video with the 2-way config, and then grabbed another with the "1.5-way" config, snipped out the cam and opening of that frame and just pasted it direct on top of the 2-way config. I scaled it so that the triangular opening was almost exactly the same height in both. AND.... the gap between the plates is wider with the cam installed in the triangualr opening backwards. That is.... it cannot go together that way. There would be massive force on the plates all the time, if you could even reassemble it.  So, My statement on the matter? The Nismo diff is actually only a 2-way and 1-way. There is no 1.5-way option in it, regardless of what they say. Here's a photo of a real 1.5-way ramp opening from Cusco (along with the 1 way option). And the full set of 1 through 2 way options from their racing diff, which is not same-same as what we'd typically be using, but...the cams work the same. A little blurry, but it comes from this Cusco doc, which is quite helpful. AND.... Cusco do in fact do what I suggested would be sensible, which is to have rings that do 1 and 1.5, and 1.5 and 2. Separately.  
×
×
  • Create New...