Nitrous Kits

[R32 GTSTT]

hey guys, im looking a fiting a NOS kit to my RB20, just wondering if anyone have had experience in fitting NOS kits to skylines. If you have, can u recomeded any brands that would be good. Im not looking for anything to X-treme, just something with resonable power shots. thanks for ya help

[Vovan]

ZEX kit (wet), up to 125 additional hp.

quite easy to install and it conrtols A/F ratio automatically

[rev210]

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.

[Vovan]

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?

[rev210]

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.

[rev210]

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.

[R32 GTSTT]

thanks, do u have any web pages for buying these systems, so i can check out prices?

[rev210]

www.ozrace.com

[nv033]

never go single fogger..... if ur gonna do it do it right...especially with a standard motor..:bahaha:

[rev210]

Originally posted by amu

never go single fogger..... if ur gonna do it do it right...especially with a standard motor..:bahaha:

thankyou nitrous guru.

What did you mean by ' do it right ' ?

Does that mean installation using only the right hand?

[Sciby]

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.

[nv033]

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!

[rev210]

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'.

[2rismo]

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