i took this post from my local board...hence the listing of local shop names



I have talked to at least 5+ people about this issue, and nothing makes sense with this problem.

I will start from the beginning, and see if any of you guys have ideas.

the setup (100 shot wet kit nitrous works mainly)

Nitrous Works fuel/nos Solenoids
Nitrous Works MicroSwitch
ZEX main line, and purge setup/solenoid
Nitrous Works 10lb bottle, or 10lb NOS bottle (carlos !)

It all started when I got the bottle filled when it was hot. I got to Earls with it, and they stuck it in a freezer for an hour before filling. They filled it, and the bottle was nothing but air once I got to IRP with it. I then stuck the empty bottle in a fridge, and had it filled at nosnhoj, and it purges a quick burt of nitrous...then air...and more air...stop; purge again...quick burst of nitrous...air...more air...more air, bottle pressure right around 900lbs (dont know if gauge is accurate)

I then got a spare bottle from a local guy (NOS 10lb) and he froze it in a freezer all day for me, and I got it filled at Automation.

THE SAME THING happens as the previous fill ! Nitrous....air...air...air

When I try to spray it, it bogs since it gets no nitrous but more fuel.

I took off the purge setup, and it still isn't spraying. I am wondering if the pressure simply isn't high enough. Line facing down on either bottle for proper pickup!

What should I try now? Is it possible, I got 2 bad fills?

 

whats the bottle weigh?

sounds like the siphon isnt picking up liquid.

 

Sounds like bad Fill. I have em Freeze it for about 24hrs Try that sorry to hear that good thing you atleast cought it

 

Why are you freezing the bottles? I mean, whats the point?

 

I was told if you dont' freeze bottle it won't fill all the way something about Condesnse or w/e that word is lol I've had no prob with it when the bottle is froze

 

On a cold you won't need to chill a bottle. Watch a bottle in the sun the pressure goes up. Same thing on a hot day, so chill it to bring pressure down so it can be filled fuller. Sounds like you had same problem with different bottle. Do you know for a fact that you have tube facing down and bottle tilted up at outlet end?

 

I had the bottles laying in multiple different directions while trying to purge, im going to remove some things and try it outside the car this week.

 

empty the bottles completely when you get a bad fill. Every couple fills I completely empty my bottles just to make sure there is no residual air in them. are you "laying" your bottle on an angle? or flat? it doesnt sound like you have properly mounted your bottle?

 

Onlu suggestion I can give is to pull the bottle out of the car and open it and see if it white comes out or not. That would atleast give you an idea if the problem is the system or the bottle.

If thats ok you might have a clogged screen in your system. I had a similar issue with mine a while back. When I would try and spray it would hit and then die off after a second. Pulled the system apart and sprayed it and nitrous would pop out of the nozzle and then die off after a second. Ended up being a clogged screen in the litttle junction that split my nitrous line off from my purge line. I didnt even know it had a screen in it but it did and I ripped it out. No more issues.

 

All this talk about bad fills... You can not fill a bottle with air and get weight. If the bottle is at full weight then it has liquid in it and you have some other problem. Does the bottle rattle when you shake it? I have seen siphon tubes break off but unlikely with two bottles. I assume you are talking about Earl's Indy. Great bunch of guys that know how to fill bottles. They simply chill the bottles to make it easier on their pump and to get a complete fill.

 

That is simply not true. just because you have never experienced a bad fill doesnt mean its not true. i had a very similar problem to what he has described. after i would spray away the first couple of pounds it would surge and then nothing. when i emptied that #15 bottle it had #10 pounds left in it,,,, all air.
you can not compress air into a liqued without a cryogenic process to lower the temperature but whether a liquid or a gas it most certanly has weight to it

 

According to AirLiquide.com the density of liquid nitrous is 1222.8kg/m^3 and the density of gaseous nitrous is 3.16kg/m^3 at the same pressure, so liquid nitrous is 386 times heavier than gaseous nitrous.



So you would need a container 386 times bigger than a 15lb bottle to weigh 15lbs (plus container weight) if it was full of gas only.

 

i am almost positive that you dont have the syphon tube positioned at the bottom, sounds like it is picking up nitrous, then air, let it set, then picks up nitrous again, then air. Try making sure the tube is at the bottom of the bottle, and that the valve is titled upwards a bit

 

I am going to try a few of your guys ideas this afternoon. I appreciate the positive comments towards a newbie! I have read this board for some time, just never needed to post.

I will keep this thread up to date.

 

The syphon tube could have broke loose from the valve. Or the tube indexing is off. Simple fill the bottle wieght should be 24.5 or so depending on bottle. If yousee just air take the bottle out and stand it up. Open the valve you should see a huge amount of nitrous flowing. Care should be taken ALOT OF PRESSURE HERE> is so the tube index is off MAYBE>
Ricky

 

so you mean to tell me that the air compressor in my garage will weigh more when it is full of air?

 

well, of course. it's the weight of the air that keeps the air compressor from floating away after filling.

 

Liquid oxygen has a boiling point of -297.3°F (-183.0°C) and nitrous is -127*F hmmmmm