Nitrous Bottle Empty at Half Full?
Thread Starter
Pro
Joined: Nov 2003
Posts: 667
Likes: 0
From: Austin TX
Nitrous Bottle Empty at Half Full?
My tuner is in the process of installing my nitrous kit and says that the bottle will only spray all 10lbs if the bottle is standing straight up. Laying down mounted in the back it will only spray 5lbs and acts like it's empty. Do I need to get a new bottle or can some fix this one. It may be something besides the bottle like the valve or something but I'm no expert with nitrous and don't know how to diagnose the problem. Any ideas would appreciated.
Thanks
Thanks
Le Mans Master
Joined: Oct 2005
Posts: 7,088
Likes: 1,829
From: Metro Detroit Michigan
The pickup tube needs to stay submerged in liquid. In an accelerating car, the best position is with the valve forward, angled up maybe 15 to 30 degrees, with the pickup tube at the bottom.
With the position you've described, sloshing will uncover the pickup tube fairly early, maybe around half full.
With the position you've described, sloshing will uncover the pickup tube fairly early, maybe around half full.
Drifting
Joined: Aug 2000
Posts: 1,698
Likes: 1
From: Chapin SC
Cruise-In II Veteran
Cruise-In III Veteran
Realistically you won't get much more than 5-6 pounds out of a 10 pound bottle. The issue is pressure. As the nitrous in the bottle is used it becomes harder and harder to maintain proper pressures. This may not be a big problem on a dry system but wet systems are tuned (jetted) for a certain nitrous pressure (usually between 900-1000 psi). Too high a pressure will cause lean mixtures while low pressures will cause rich conditions.
Safety Car
Joined: Apr 2000
Posts: 4,326
Likes: 140
From: Weatherford, TX
I mounted a 15# bottle sideways and followed the NOS install instructions. It works great. The instructions show alternate mounting methods, and say you can go sideways, making sure the valve is 45 degrees. I always run outta N20 first, then have a few hundred psi of compressed air to burn off before I refill.
Cruising
Joined: Jul 2004
Posts: 14
Likes: 0
From: Smyrna Georgia
Originally Posted by 1 Nasty Z
This is my setup. Bottle seems to always run until fully empty.
That is the "Best" way to mount your bottle. As for the pressure issue get a bottle heater, it will help
Advanced
Joined: Feb 2005
Posts: 53
Likes: 0
From: Katy TX
If you crack the valve open...your bottle should completely empty, the position of the pick up tube should only influence the state of what comes out...liquid, or gas. But rest assured..if everything is open..it should empty down to no liquid, and a cylinder gas pressure equal to your atmospheric pressure.
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