CLASS RACER FORUM - View Single Post - CO2 Shifter Bottle Position Clarification

63corvette · 03-01-2021, 10:38 PM

Orientation does matter.
When a CO2 bottle is filled is mostly full in a liquid state and boils off to a gas as it is used.
If you carry a bigger bottle to fill your small bottles used on the race car the bottle needs a dip tube to the bottom or turn the larger bottle upside down to get the liquid out into the smaller bottle in its regular upright position.
We use CO2 in the place of air in a bottle so we do not need to fill nearly as often.
I carry a 30lb bottle to fill out of if needed.
I fill my 2.5lb bottle once a year and unless I have a leak it last all year long.
Shifter and throttle stop both use out of the bottle.
With a air filled bottle it would not last a full race of 6 to 8 rounds.
With a horizontal mounted CO2 bottle you could get liquid into the regulator and could cause issues.
I have seen people mount them in a horizontal position however, in most cases they are tipped up a little and the valve faces the front of the car and the regulator connection facing up.
Rick Cates
Canyon, TX

03-01-2021, 10:38 PM	#10
63corvette Senior Member Join Date: Mar 2007 Location: Canyon, Tx Posts: 552 Likes: 128 Liked 359 Times in 103 Posts	Re: CO2 Shifter Bottle Position Clarification Orientation does matter. When a CO2 bottle is filled is mostly full in a liquid state and boils off to a gas as it is used. If you carry a bigger bottle to fill your small bottles used on the race car the bottle needs a dip tube to the bottom or turn the larger bottle upside down to get the liquid out into the smaller bottle in its regular upright position. We use CO2 in the place of air in a bottle so we do not need to fill nearly as often. I carry a 30lb bottle to fill out of if needed. I fill my 2.5lb bottle once a year and unless I have a leak it last all year long. Shifter and throttle stop both use out of the bottle. With a air filled bottle it would not last a full race of 6 to 8 rounds. With a horizontal mounted CO2 bottle you could get liquid into the regulator and could cause issues. I have seen people mount them in a horizontal position however, in most cases they are tipped up a little and the valve faces the front of the car and the regulator connection facing up. Rick Cates Canyon, TX Last edited by 63corvette; 03-01-2021 at 11:12 PM.