It's to hot in Calif
I have a C-3 NOS in the back
What happens if the bottle gets to HOT,
how to provent it

 

I had the same question in my mind but never asked it in here. I looked on internet briefly and couldn't find what pressure my bottle was rated at as far as it bursting under pressure. So since, I have a safety pop off valve and blow down tube I decided just to test it and parked out in the sun at work one day in temps in the high 90's. I figured worst case senario the burst disc would pop and I would lose my nitrous out the blow down tube. If memory serves me I think I remember the burst discs with my pop off valve are rated at 2000psi. My bottle gauge goes to 1500psi. Well, I came out at about 4:00pm and my bottle gauge looked like it was on ZERO at first glance and I was thinking "well good, I lost my nitrous,way to go Dave" but when I got to the house and went to remove the bottle I realised that the gauge needle wasn't on zero but in fact was all the way pegged past 1500psi.

Moral of story is that In my case the heat in my car sitting in the sun apparently didn't cause bottle pressure to exceed 2000psi or the disc would have burst so I dont really worry about bottle failure or N20 loss. On the other hand I wouldn't want to run out and race with that pressure because it would likely be lean as heck

If I know my car is going to sit in the heat all day I simply remove my bottle. It's not that hard.

There is a company now offereing a bottle heater/cooler that is thermostaticly controlled to keep bottle at optimal pressure no matter what the surrounding temp conditions are but I cant remember who makes it or if it works good. I do remember it being fairly costly. You may want to look into it if your concerned.

 

I lost a bottle one time in the sun. Just have a blow down tube. I'm not sure what kind of pressure was in it when it went. I didn't even know it had happened to be honest. I went out that night and tried hit and got nothing. That's when I noticed the pop-off was popped.

Basically the moral of the story is to have a properly set-up blow down tube.

 

Definitely have a good blow down path from the rupture disc.
And bottle blankets also work well to insulate the bottles from direct sunlight (mine are right behind me in a '96 Vette... lots of glass).

 

I got real worried one day at the track. It was hot and my bottle was passing 1250 PSI, most of the rupture disks have a 1300 psi limit. I ended up letting some gas out to cool the tank alittle.

NX has a neat part called "Fire & Ice", it maintains whatever pressure you dial in. I'm getting one for my ZR1. Another option is having some cold packs to put on the bottle, which definately helps.

 

The burst disc is set at 1800 psi .
Usually the purge valve won't work if you get above 1400.
If you want to have some fun try a ford pick up truck with the cat convert on the passenger side, after a long drive to the race track 28 lbs of nitrous on the floor board and wait 30 minutes.
It will only blow out one window but it sure whites out the indside of the truck.The noise is realy cool also when it blows.
Don't touch the bottle it's 127 deg below zero it will burn you.
I had to smack my buddy out of the way,he was going to pick it up .Two mths later he got to blow a fire extinguisher at me to put out my nitrous car,fire .

 

That's what I thought too. I left my bottle sitting outside, in 105º heat (mind you, it was under my patio) and that night, when I went out to race, the bottle pressure was a perfect 1050psi

 

its part #
Speed00020

I just ordered it along with my plugs.
I cant wait to get all this stuff installed!

Ill let you know how it goes.
your friend
Sean