Anyone got NOS?

[mrhyundai]

Hi fellas..... just wondering if anyone has tinkered with NOS before for the R33 Gtst

[GTS-t VSPEC]

I know a few people running NOS, mainly on REX's (only way to make them fast:bahaha: ), but some have it on R33's.

Do you have a question about running NOS on the car, or just general interest?

See'ya:burnout:

[rev210]

Good idea.

*50 to 125Hp 'Wet' system is the best (fuel and nitrous are added through the kit).

* you need to ensure your existing fuel pump can supply the addtional fuel the extra horsepower will require. Replace the stock pump with a larger bosch unit.

* Do not exeed the 'horsepower' limits of your engine's components by adding too much nitrous or turbo or anything that adds horsepower. This is the sole cause for people dismissing the reliabilllity of nitrous. People need to know when to say 'enough'. Just cause your engine doesn't explode at 100HP jetting doesn't mean you should run 200HP jets just to go faster.

The 'EFI' kits offered by NOS, Nitrous Express and OZNOS/RACE are suitable and probably a 50 or 75HP shot will be plenty without any dramas.

Some time ago when I inquired with NOS about a kit for a stockish R33 GTST. They recomended the EFI kit, plumbed in before the throttle body, and said that it would conservatively be able to net an improvement of 1 to 1.5sec off the standard 1/4 time of 14.2 at a setting of 75HP on street rubber.

[Guest INASNT]

Originally posted by rev210

Good idea.

*50 to 125Hp 'Wet' system is the best (fuel and nitrous are added through the kit).

* you need to ensure your existing fuel pump can supply the addtional fuel the extra horsepower will require. Replace the stock pump with a larger bosch unit.

* Do not exeed the 'horsepower' limits of your engine's components by adding too much nitrous or turbo or anything that adds horsepower. This is the sole cause for people dismissing the reliabilllity of nitrous. People need to know when to say 'enough'. Just cause your engine doesn't explode at 100HP jetting doesn't mean you should run 200HP jets just to go faster.

The 'EFI' kits offered by NOS, Nitrous Express and OZNOS/RACE are suitable and probably a 50 or 75HP shot will be plenty without any dramas.

Some time ago when I inquired with NOS about a kit for a stockish R33 GTST. They recomended the EFI kit, plumbed in before the throttle body, and said that it would conservatively be able to net an improvement of 1 to 1.5sec off the standard 1/4 time of 14.2 at a setting of 75HP on street rubber.

how much was the NOS kit youlooked at?

[rev210]

Originally posted by INASNT

how much was the NOS kit youlooked at?

They are all upwards of $1500AUS installed. NOS and NX are closer to $2000 installed. You can spend more to give the system more response by adding a purge kit and bottle warmer (pressure controlled is best).

The OZrace EFI kits don't include the bottle (they have a rental deal or you can buy a bottle)

They are around $1000 for the kit minus bottle.

http://www.ozrace.com/ozrace.html

With nitrous kits its good to shop around, mainly with V8 focused shops (they do nitrous kit installs in their sleep).

[Guest INASNT]

I looked into getting a Nos kit for my worked 250CI Cortina a few years back. You wouldnt need the purge system or bottle warmer unless you were running a shi*tload of NOS and had a highly worked engine.

[rev210]

Originally posted by INASNT

I looked into getting a Nos kit for my worked 250CI Cortina a few years back. You wouldnt need the purge system or bottle warmer unless you were running a shi*tload of NOS and had a highly worked engine.

The blanket is a great idea when its a cool day, the pressure drops and reduces the power delivered. The nozzles rated in HP are HP at a certain mean temperature and atmospheric pressure. Also as the bottle empties the pressure falls off, making the blanket a handy idea.

The purge valve allows the lines to be purged, providing a solid 'hit' of the gas as soon as its on. Without the purge kit there is a 'softness' by comparision.

How worked your engine is doesn't effect the purchase of either of these items, neither does the size of the nitrous hit. A sh*tload of nitrous for a mini is 50HP and it would benifit with these additional items.

Don't just take my word for it ask the companies who produce the kits.

[GTS-t VSPEC]

I think that NOS should be used sparingly, and 50-75hp shots are probably quite safe for most usage. The wet system is definately the better way to go, but at $2000 for a kit I think the turbo should come first.

Where in the rev range should you use the NOS? I know it can be used in an anti-lag effect for getting good launches at the drags, but in general street use what is the best approach.

See'ya:burnout:

[rev210]

Originally posted by GTS-t VSPEC

I think that NOS should be used sparingly, and 50-75hp shots are probably quite safe for most usage. The wet system is definately the better way to go, but at $2000 for a kit I think the turbo should come first.

Where in the rev range should you use the NOS? I know it can be used in an anti-lag effect for getting good launches at the drags, but in general street use what is the best approach.

See'ya:burnout:

You use nitrous at wide open throttle (there is a switch under the potato masher).

With nitrous you will shift the peak redline down 500-1000rpm, you will have a very large increase in Torque. What wins races? Torque wins races.

A sub $2000 nitrous system will improve your cars accelleration more than a $2000 turbo setup, the benifits of nitrous read more than the HP jet rating. For one thing you don't require the bigger injectors / aftermarket ecu / blah blah that a largere turbo requires. You retain good fuel economy and the engine will suffer less wear on a regular basis, oh and theres that torque thing too.

The con for the nitrous kit is in WA and Qld it is illegal.

[GTS-t VSPEC]

A mate of mine got his REX through the pits with a wet NOS system, just covered the lines with blue hosing.

See'ya:burnout:

[rev210]

Originally posted by GTS-t VSPEC

A mate of mine got his REX through the pits with a wet NOS system, just covered the lines with blue hosing.

See'ya:burnout:

I've seen a few cheaters in WA. Mounted in the (fake) subwoofer box etc.

The lines can be run underneath manifolds and intake parts with a bit of a fiddle and using good old polution hose is a common disguise.

[Cubes]

So you NOS is legal in SA then?

1-1.5 sec drop in 1/4 is by far one of the cheapest methods.

Try getting a stock skyling in to the flat 13's for $1500. No can do. On street rubber anyhow.

[ed]

N2O is illegal to use on public roads in NSW.

Are there ANY states that allow the use of N2O on public roads?

[predator]

Dunno, not VIC - you can have the thing setup but you're not allowed to have the bottle connected or something like that.

[ed]

Originally posted by predator666

Dunno, not VIC - you can have the thing setup but you're not allowed to have the bottle connected or something like that.

apparently that's the same rule for NSW

[mrhyundai]

thanks for the responses guys..... i initially posted the question because I wanted to get a feel for what peoples experiences are with NOS.

My car is currently running 0.8 bar with dump and free flow exhaust. I've also got a SAFC. Normally the next logical step would be to install an FMIC but here is where i have the dilemma. I've seen cars with a similar setup with FMIC and they tend to run 13.7-13.9 quarters. If what Rev210 says is true then if I install NOS and get a 1s improvement then I'll be estatic!!

the last time i was at the drags (without aftermarket dumps and cat) the best i could muster was 14.1. If i can get low 13s then i'll be over the moon :uh-huh:

[ed]

yes but personally I don't see the point in getting a fast time on the strip and not being able to come close to it on the streets.

[predator]

NOS would be win you some coolness points in here for sure, and prolly amongst your friends but whether its really worth it or practical is another question.

Mounting a big intercooler will increase your lag.. but there are other less ways around that other than using NOS!

There is a lot of other things u can do that will be cheaper and probably get you a quicker time - maybe even a second off. Not everything is HP. Changing your tyres and or modifying the ass end (through bushes and the like) will give u better traction and hence better launches. And that will give u everyday better launches on the street as well. Many people have found the same and its one thing i want to do to my car soonish - have a look at meggala's site for the difference it made to his 1/4 time.

[Merli]

I agree with ed.

NOS should be a last resort/last modification. It is designed primarily for drag racing on the strip (in automotive circles), not on the road.

There is a $10,000 fine for using it on the road.

That said, I had a Nitrous'ed Proton Satria GTi, which got the occasional squirt on the roads (but 90% of it's use was on the track)...

I have just purchased a 100hp NOS Wet Kit for my R33 GTS-t, but my car is heavily modified and this NOS kit will just be used on the drag strip.

I'll take photos of it in a minute

[ed]

WE WANT PHOTOS NOW!!!!!