Nitrous Oxide For your Skyline

[2rismo]

$100 to fill a 10lb bottle. How many runs you get out of it depends on the size shot you use. Longevity? How's 18 months on the bottle and near 80 passes @ WSID and 50 laps of E.C.Raceway sound with NO DRAMAS!?!?!?!?

Don't talk about longevity... hahahaha....

Adrian

[2rismo]

Sorry make that "80+++ passes at WSID, 50+++ laps at ECR all on the bottle as well as a few hours on the dyno over time AND the regular racing and street driving off the bottle.

Driven this cars arse off for near 3 years with no ill effects.

Ssshhhh....!!!!

Adrian

[benm]

I aggree but the long term longivity of your motor seems that it is going to be short lived. It seems by spending money is to save money build it once and do it right.

Correct me if im wrong 2rismo but your car is making approx 270rwkw on std turbo with nos?

With a proper tune that's hardly damaging the engine (or no worse than whacking an aftermarket turbo on and getting a similar power level...). Not to mention it would have been cheaper and easier to tune no doubt.

[strutto]

$65 for a 10lb refill up here in sunny QLD...

[fresh]

what sorta boost levels u running ??? bottle and no bottle ??

[Mehhh]

$55 refills

got 14 runs before it started to not kick in so hard, nothing a bottle warmer wont fix though

[rev210]

I aggree but the long term longivity of your motor seems that it is going to be short lived. It seems by spending money is to save money build it once and do it right.    

This is an example of ongoing costs what is it around $100 to refill

GTSTBOY

Every motor has a power limit and an rpm limit.

The amount of nitrous suggested by 2rismo + his existing base power without gas is arguably within the power limit of the RB25det engine components. Therefore the longevity is not in question if the comarison is made bewteen a turbo upgrade of the same total power. The rpms required by the nitrous shot are typically lower and the intake charge temps are lower giving another advantage to a nitrous system in terms of wear.

The ongoing costs are hardly an issue for someone who wants to race a car.As they say.." if you want to save your pennys go and buy yourself a moped". Tyres and fuel alone cost enough to turn some people off. Not to mention the clutches, gearboxes and diffs.

I actually believe 2rismo may crack a 10.99 second pass with the larger shot he is now runing (although he doubted me last time I said this) since the torque difference over his last setup should be massive. Of course that my call not his.

10lbs of gas lasts longer than you think . When you actually own a car with a kit on it you keep feeling it's such great value for money every time you flick the switch Just ask anyone who has had a well setup kit on thier car and I'm sure they will tell you the same.

This thread is all about learning. So I hope we can add some info to your as yet incomplete understanding of nitrous use for performance.

[MicK51]

do u use different spark plugs? different heat range, gap, ect?

[2rismo]

I actually believe 2rismo may crack a 10.99 second pass with the larger shot he is now runing (although he doubted me last time I said this) since the torque difference over his last setup should be massive. Of course that my call not his.

I did doubt you, didn't i ??

I run 1 heat range colder (an 8) with my usual 0.8mm plug gap and they work great.

Adrian

[2rismo]

It sounds as if you are going to big on a standard motor why don't you just spend some more money on a proper build instead of NOS

GTSTBOY

Re this post;

Building a motor wouldn't give me any more power than I have now without the gas. As I'm not hurting the car now, why 'build it'?

Adrian

[2rismo]

$55 refills

I wish!

[2rismo]

what sorta boost levels u running ??? bottle and no bottle ??

I run 1.0 bar without the gas (best of 12.7 sec ET) and 12psi with the gas (best of 11.9 sec ET).

Adrian

[2rismo]

Correct me if im wrong 2rismo but your car is making approx 270rwkw on std turbo with nos?  

With a proper tune that's hardly damaging the engine (or no worse than whacking an aftermarket turbo on and getting a similar power level...). Not to mention it would have been cheaper and easier to tune no doubt.

The car makes about 200rwkw without the gas as the above-mentioned boost levels and about 260rwkw with the gas.

Two different DD dynos recorded 258.8kw and 259.1kw respectively in Shootout Mode. I expect more like 300kw with the new jetting but lots more torque. Can't remember the tractive effort figures off the top of my head though.... Does 1420ft sound right?

Adrian

[Sydneykid]

10lbs of gas lasts longer than you think

For the 60 rwkw increase (as in 2rismo's case) how long does a 10lb bottle last? Number of passes or engine time, whatever?

Around here the going rate for 10lb bottle refill is $55 inc GST, what's it cost over there?

[2rismo]

For the 60 rwkw increase (as in 2rismo's case) how long does a 10lb bottle last?  Number of passes or engine time, whatever?

Around here the going rate for 10lb bottle refill is $55 inc GST, what's it cost over there?

I usually get about 14 passes before the performance suffers. This is due primarily because the bottle pressure drops significantly when it runs low and until recently, I didn't have the recommended bottle warmer fitted. These warmers maintain a constant temperature (and therefore pressure) using a thermostat and are a very simple electrical prospect.

16-18 passes down the quarter mile from full to empty on my bottle seems about right. When it's only (mainly) used in quarter mile applications it's a great value for money prospect involving little or no compromise in how the car drives daily.

Adrian

[rev210]

Some one asked about plugs?

Usually you run a colder plug and go for one with a decent size grounding strap, the NGK copper plugs all seem to be ok. That means no iridium/platinum or any self cleaning style plugs. The BCP 7's I found to be quite ok.

[Sydneykid]

I usually get about 14 passes before the performance suffers.  This is due primarily because the bottle pressure drops significantly when it runs low and until recently, I didn't have the recommended bottle warmer fitted.  These warmers maintain a constant temperature (and therefore pressure) using a thermostat and are a very simple electrical prospect.

16-18 passes down the quarter mile from full to empty on my bottle seems about right.  When it's only (mainly) used in quarter mile applications it's a great value for money prospect involving little or no compromise in how the car drives daily.

Adrian

Thanks Adrian, what's a 10lb refill cost?

[2rismo]

About $100 however it seems some people are getting significantly better deals than me!

Adrian

[Sydneykid]

About $100 however it seems some people are getting significantly better deals than me!

Adrian

Yep prices vary a lot, are you using the sulphur added formula?

[2rismo]

Yes I hadn't thought of that! Perhaps some cheaper refills are coming dodgy dentists.

I am using the Sulfur enriched version.

Adrian