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Nitrous NOS Bottle Mounting How To Correctly Position Label Bracket Tutorial

November 6, 2019


Inside most NOS bottles, there is a pick-up
tube that is molded to a specific angle that allows for maximum flow as the bottle nears
empty. Keep in mind that when the NOS label on the bottle is facing up, the pick-up tube
will be positioned correctly in the lower most area of the bottle when mounted in its
angled brackets. There are many ways you can mount your NOS bottle in your vehicle. But
depending on the placement you chose, you will need to follow specific recommendations.
These guidelines will ensure that the bottle will be able to pick up nitrous oxide liquefied
gas during all operating conditions. In the most basic breakdown, there are four
main variations for bottle mounting. The first two are for when you’re using angled brackets
and will be mounting the bottle horizontally. If you mount the bottle in line with the direction
the car will be travelling, the valve must face forward and the bottle label has to be
facing up. This position will make sure that as the liquefied nitrous in the bottle runs
low and the forward motion of the vehicle keeps the nitrous pooled towards the bottom
and rear of the bottle. The angled siphon tube inside will have the best chance of drawing
in pure liquefied nitrous. If you want to mount the bottle laterally
in any way or perpendicular to the direction of vehicle is travelling, the bottle needs
to be rotated in its brackets. A 45-degree angle with the bottle label pointing towards
the front of the vehicle is a good position. With the added angle, the siphon tube will
be able to pick up the liquid nitrous as the vehicle move forward causing the liquid to
pool at the rear of the bottle. The other two orientations of bottle mounting
are for vertical positions. If you mount the bottle vertically with the valve pointing
up, you want to position the label of the bottle facing forward in the direction the
vehicle will travel. This will make sure that the siphon tube inside will pick up liquid
nitrous as the bottle level gets lower and the vehicle motion is forcing the pooling
liquid to the lower rear of the bottle. If for some reason, you would prefer to mount
your bottle in an inverted vertical orientation, you would need to modify the bottle and remove
the siphon tube. The bottle would need to be emptied and with the valve open, you would
unscrew the main valve from the bottle. This is not easy to do. But when the valve is out,
you’ll find the siphon tube connected to the inside of the main valve itself. You need
to remove the siphon tube from the valve and reinstall the valve in order to mount the
bottle in an inverted position. This will ensure that as the bottle empties, liquid
nitrous will flow uninterrupted. At this point, you need to consider a critical
safety warning. If your bottle is going to be mounted in a hatchback style vehicle or
inside the driver compartment of any type of vehicle, the bottle valve must have a blow
down tube installed. If increased pressure causes the safety valve to rupture, the entire
driver compartment could fill the cloud of nitrous oxide that will present a breathing
hazard to anyone inside the vehicle. The safety blow-down tube will route the gas out of the
vehicle. This will keep any occupants in the vehicle safe from breathing excessive nitrous
oxide or from receiving severe frostbite from the super cold temperature of the escaping
gas. Now, we’ll begin the installation process.
Once you’ve chosen your mounting position, you want to fix your bottle into place. A
good starting point is to put the bottle into its brackets and place it in the proposed
destination. You want to be sure that the brackets are sitting on solid placements and
that the provided mounting holes will be accessible from below or outside the vehicle. Permanently
fixing the bottle in place will be at your discretion, 5/16 is the bolt size that we
would advise for bottle brackets. Place washers above and below any sheet metal to protect
against bolt’s pulling through the body panels and we recommend you put some type of lock
washers under the fasteners to keep them from loosening over time. Also, consider the fact that you will repeatedly
once you remove the bottle or maybe even a bottle along with its brackets on a regular
basis to do the refills. Just be sure to mount the brackets in a place that will leave enough
room form sliding the bottle out of permanently mounted standard brackets. If space is tight,
consider accessories like hinge brackets that will make the bottle removal is easier. The
last consideration from mounting the bottle is to the travel route of the nitrous line
toward the engine compartment. It’s pretty simple though, you just need to have enough
slack to be able to be able to easily disconnect and then reconnect the bottle during the refill
process. Otherwise, the line can be secured all along its path. When everything is set and your bottle is
secure with the siphon tube correctly positioned, you can install the Teflon washer in to the
bottle adapter and thread it onto the bottle valve. Tighten the nut with a wrench and then
thread the bottle end of the high pressure line in by hand to establish a starting point
for the hose. As you plan a route for the high pressure nitrous line to travel to the
chassis of the vehicle, keep in mind that taking pass through the underside of the vehicle
are generally shorter that require more safety binding and strapping points. In most cases,
following the fuel lines along the frame of the vehicle will work best. Paths that send
the line through the vehicle interior will often use more hose line because they bend
and turn along interior contours. However, internal routing usually requires
less securing and/or safety strapping. As you’ll be able to tuck the hose into crevices
and under interior panels or carpeting. Ultimately, you might want to choose a path that allows
you to use the included hose length. Again, underside paths following the fuel line are
recommended for most applications. Before you run the hose in the interior or along
the undercarriage, wrap the end of the hose with a couple layers of plastic wrap or a
small plastic bag and secure it in place with a rubber band to keep debris out of the open
end of the hose. After the line has been run, excessive hose length can be coiled and easily
concealed. However, braided high pressure hoses can never
be cut and shortened because of the carefully machined ends and compression type connectors.
After running the line, if your hose path causes you to end up short of the proposed
mounting point for you NOS solenoid, you do have an option. You can purchase a two-foot
high pressure line extension that will finish off the path and still that you retain the
longer route that you initially ran the hose along. Now, your empty bottle is installed,
the nitrous feed line has been run to the engine compartment. So, we’re ready to move on to the rest of
the installation. Remember, right now we’re dealing with the plumbing hemisphere of your
kit pieces. The next items we’ll deal with are the nitrous solenoid, its filter, the
high pressure line that connects the solenoid to the discharge nozzle. And the next item
up for install, the discharge nozzle or spray bar itself.

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