Nitrous Oxide N20

bottle pressure

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Old Dec 3, 2008 | 05:44 PM
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bottle pressure

What's the lowest and the highest bottle pressure ucan have while spraying
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Old Dec 3, 2008 | 07:38 PM
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950 is what works for me. If its cold outside, the pressure stays at 750 or so, and you really can't feel the kick. Bottle warmer maintains 950 for you.
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Old Dec 3, 2008 | 07:55 PM
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Agreed. We target 900-950 also. Nitrous pressure is critical to correct AFR and power gain. Too low and the car will run too rich...too high and you risk being dangerously lean.

In the cold weather, I'd recommend you shoot for 850-900 just to be safe. Nitrous use in cold temperatures is best done with a little less nitrous or a little more enrichment fuel...it's easier to go lean and/or spark knock when it's cold out.

Be careful, do your research so you don't make any avoidable mistakes, and enjoy!
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Old Dec 3, 2008 | 09:23 PM
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Originally Posted by EcoBoost
Agreed. We target 900-950 also. Nitrous pressure is critical to correct AFR and power gain. Too low and the car will run too rich...too high and you risk being dangerously lean.

In the cold weather, I'd recommend you shoot for 850-900 just to be safe. Nitrous use in cold temperatures is best done with a little less nitrous or a little more enrichment fuel...it's easier to go lean and/or spark knock when it's cold out.

Be careful, do your research so you don't make any avoidable mistakes, and enjoy!
Would you say a 45 shot vs a 55 shot. My 55 will barely be sprayed through my car this winter.
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Old Dec 4, 2008 | 11:03 AM
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Originally Posted by SSdan
Would you say a 45 shot vs a 55 shot. My 55 will barely be sprayed through my car this winter.
I'd say use the nitrous jet for the 45, and the fuel setting for the 55
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Old Dec 4, 2008 | 11:46 AM
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950? weak! go for 1100

i should probably take that temperature change into account, I normally run the same pressure and jets all year around although on a stock tune I probably have more room to play around with...
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Old Dec 4, 2008 | 11:53 AM
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ya...when i was abusing the sauce i was around 1050 psi myself
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Old Dec 4, 2008 | 12:45 PM
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Hehe, it's all relative, really...with less pressure, one can achieve the same power as higher pressure by using a larger nitrous jet. They key is a well-tuned package that you stick with...if it's tuned for 1050, stick with that. If it's tuned for 950, stay at 950.

My preference for 900-950 comes from temperature stability...as the weather cools, it's much easier to maintain this pressure. It suits our climate, as well as the fact that I typically spray only at the track, where I have great control over bottle temperature and the attendant pressure results.

Now, were I in a hot climate, and running more on the street where the bottle spends long periods in a car baked by the sun and driving the pressure up from heat, I might favor higher pressures!

Last edited by Hahn RaceCraft; Dec 5, 2008 at 09:14 AM. Reason: typos SUCK
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Old Dec 4, 2008 | 11:03 PM
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i always aprayed at 1100ish ha
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Old Dec 5, 2008 | 03:23 PM
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I got a bottle filled when it was 110*F out and my bottle pressure was off the guage (over 2k psi). I ended up putting the bottle in the fridge to cool it down. I tried to fire the nitrous solenoid just to see what it was like (engine off) and it was so much pressure the solenoid wouldn't operate.

I just for 950 to 1050 psi. Remember the cobalt fuel pressure is 15PSI than what most guides will assume so get a jet calculator that takes fuel PSI into account too.
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Old Dec 5, 2008 | 03:25 PM
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Originally Posted by zinner
I got a bottle filled when it was 110*F out and my bottle pressure was off the guage (over 2k psi). I ended up putting the bottle in the fridge to cool it down.
Good plan! Much higher than that and it might have popped open the safety release. Then you have one helluva bunch of noise and smelly, wasted juice!
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Old Dec 6, 2008 | 03:37 AM
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1000; Easy to read on the gauge.

Also, nitrous doesn't smell like anything.
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Old Dec 10, 2008 | 11:23 AM
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Originally Posted by knwldge54
1000; Easy to read on the gauge.

Also, nitrous doesn't smell like anything.
Industrial smells and tastes like Sulfer, can smell it from the tailpipes after a run too... haha
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Old Dec 15, 2008 | 07:58 AM
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Originally Posted by SK360
Industrial smells and tastes like Sulfer, can smell it from the tailpipes after a run too... haha
Don't believe everything you read on the intranet. The sulfur is minimal to deter people from "using" it.
Medical grade nitrous isn't the same as the crap they sell at fill stations. And it's alot more expensive too.
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Old Dec 15, 2008 | 11:40 AM
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Originally Posted by knwldge54
Also, nitrous doesn't smell like anything.
I may be off here, but as my post mentioned to 'smelly, wasted juice', I am of the impression you were referring to that phrase...

If yes, I'd just add that when the safety release blows off, it's highly offensive, as the sufur dioxide in typical N20 sold for perfomance use is amazingly irritiating. If the car does not have a blow-down tube to route this outside of the cabin, it will force one to evacuate the vehicle immediately.

If no, never mind
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Old Dec 17, 2008 | 05:16 AM
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I've emptied a bottle, for shipping, standing right beside it.
It was retarded cold, but I didn't smell ****.
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Old Dec 17, 2008 | 11:50 AM
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Originally Posted by knwldge54
Don't believe everything you read on the intranet. The sulfur is minimal to deter people from "using" it.
Medical grade nitrous isn't the same as the crap they sell at fill stations. And it's alot more expensive too.
What exactly did I read on the internet?

I guess I read those 4 bottles I put through my car in October alone on the internet too...

Perhaps the sulfur content differs between suppliers.
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