all NOS kits have at least one nitrous solenoid so this section will discuss
all types of kits universally
as we install and connect the plumbing of the Nitrous solenoids the exception to this
rule
would be a dry kit set up that will have 2 nitrous solenoids and no fuel solenoid
if you have a dry kit the end of this clip will deal with the nitrous
regulator installation and connection instructions
that are specific to NOS dry kits if you have the wet kit
after the Nitrous Solenoid installation instructions you'll be
given the option to skip ahead to fuel solenoid installation details
for your kit as mentioned NOS dry systems usually have 2 Nitrous
solenoids
and most wet systems have one nitrous solenoid however
many kits such as direct port kits
will have more than one nitrous solenoid to supply the larger amounts of
nitrous oxide
to the engine in most kits there will be brackets supplied with the kit
that will allow you to secure the solenoid to a convenient place near the
nozzle
for all types of kits previously you decided on the nitrous solenoid and
bracket mounting positions under the hood
or along the engine direct port kits will not have solenoid brackets because
they're supported by hardline plumbing
for all kit types now it's time to do the permanent sealing assembly
of the nitrous solenoids there are three main types of plumbing fittings
commonly found in OS kits
the first is a simple threaded fitting type these are national pipe thread
pitches
commonly referred to as NPT threads an NPT thread must have a sealant applied
to prevent leakage
we highly recommend a sealant such as a teflon paste or plumbers pipe thread
sealant with a teflon additive
as warned previously do not use teflon tape on NPT threads
there's to high-risk internal clogging when using teflon tape a ceiling with in
a Nitrous delivery system
the second type of fitting you'll find in an NOS kit is called an army-navy
fitting
and is more commonly referred to as an AN fitting AN fittings are easily
identified by the rounded or beveled shape of the male end and the freely
turning nut
and flaired edge inside the female end of the connector with an AN fitting
no sealor is needed because the angled faces of the mating services of the
connectors
will seal out leaks when properly tightened the last type connector you
may find in so many ways kits
is called the compression fitting there is a compression body
a Farrell sealing ring and a tightening nut all these pieces compressed together
to seal against the tube exterior
in hardline planning applications now that you have a better understanding of
sealing methods
let's seal and install all of the NPT threads
related to the nitrous solenoid your Nitrous line has already been run
and has a female AN fitting at the and in your kit
find the nitrous filter it's a blue anodized fitting
with a rounded AN fitting on one end and an NPT thread on the other end
the NPT threads will get a coating of teflon paste
make sure to work a nice even amount in between the threads as best you can
be especially careful not to clog the filter screen
on the npt side of the fitting after an even coat
wipe any excess that is around the filter screen or the immediate edge to
prevent sealant from entering the solenoid
now for all kit types locate the n label
on the nitrous solenoid and thread the nitrous filter fitting
into that port snug it up by hand and then clamp the solenoid in a bench vise
to hold it steady for tightening with the solenoid clamped
tighten the filter with the wrench until it feels like it's sinched up nice and
tight
this is the reason for the bench vise it's more difficult to tighten them
properly
when holding the solenoid only in your hands again turn to your kit and find
the nitrous feed line intended to travel
from your nitrous solenoid to the discharge nozzle kits with
foggers will have a stainless steel braided hose with
an NPT fitting at one end
kits with plates or spray bars may have a hose or hard line tube
with a compression fitting
with compression fittings you only need the body of the fitting and can put
aside the nut and compression Farrell
direct port kits and their fittings were discussed in the direct port nozzle
feeling section previously
next up for single nozzle and plate style kits
seal the threads on the NPT fittings that will thread
into the port on the nitrous solenoid that is labeled out
the solenoids should go back into the bench vise in order to tighten the
nitrous feed line or fitting
when it's set pull out the solenoid and let's look at the bracket mounting holes
at the bottom of the solenoid for owners of dry kits
you'll need to seal the threads of the nitrous T connector and screw it into
the
out port of the first solenoid now hand thread
the import of the second nitrous solenoid onto the
other side that same T connector double check the assembly
and be sure the nitrous filter is going in to the first solenoid
out to the T and then into the second solenoid clamp one of the solenoids in a
vise
and tighten the T while threading that solenoid with a wrench
now flip so the other solenoid is pinched in the vice
and tighten the T a couple turns into that solenoid
set the solenoid bottoms parallel to one another
and consider the exit position of the center
of the tee fitting your nitrous regulator needs the thread into the T
later
now hold the bracket to the solenoid bottoms to check for hole
alignment now this point it goes the same for all
other types have kits if you hold your bracket up to a single solenoid
and you see no bolt holes flip the bracket over and you should have access
to the holes and be able to thread in the mounting bolts
on the dual solenoid dry kits if the holes aren't accessible
for both solenoids you should only have to thread in the adapter T
maybe one turn for each solenoid after the extra turns
the hole should be all accessible now you're solenoid assembly is ready for
install
in the vehicle using your mounting brackets and bending twisting
or adding bolts as needed fix the solenoid into the permanent mounting
position
that you chose before most people will just be able to simply
mount the solenoid with an existing underhood bolt for some plate style kits
the solenoids will be mounted on either side in the carburetor or throttle body
unit
these installs may also be mounted on accessory brackets that locate the
solenoids
symmetrically on either side of the induction assembly
specifics for the direct port kit solenoid install recommendations were
previously discussed in the direct port nozzle installation section
at this point the nitrous solenoids of any style kit
should be sealed and secured in place because you've already thought about the
hose distances and locations of the solenoids when you did the nozzle
installation
all you need to do now his connect the nitrous feed lines
the nitrous feed line running from the bottle should be near your filter entry
point
remove the plastic wrap or end covering and thread it into place on the nitrous
filter
if the line was not covered you may want to connect it to a full bottle
and wrap the end in a rag then quickly open and then close the bottle
to purge the line have any debris before connecting to the solenoid filter
one wrench should hold the filter feeling steady wall another wrench
tightens the nitrous bottle feed line in place to the solenoid for multiport kits
the bottle feed line should connect to the nitrous Y adapter
and no sealant is needed for AN fittings
each side to the Y adapter should feed one nitrous solenoid
now we need to finish the connection from the solenoid to the discharge
nozzle
for the dry and wet fogger kits you need to pick the appropriate nitrous tuning
jet
from your kit and install it to the dry kit pan spray nozzle
or the nitrous port of your wet kits soft bloom nozzle no sealers are ever used on
the Jets
or the interior of the color anodized nozzle fittings
for the hose type lines hold the nozzle steady with one wrench
and tighten the AN fitting nut with a separate wrench
for a good seal that won't alter your previous nozzle alignment
for plate discharge style kits the nitrous jet will install
into the blue anodized compression fitting in the plate
again no sealant is to be used on the jet or in the blue nitrous fitting
hose type feeds can be tightened with two wrenches as described
kits with hardline feeds should remain hand tight in the plate for the moment
with the hard-line loose in the plate position the line
under the compression fitting for marking inside the compression fitting
there's a machined bottom stop when the line is
inserted into the fitting it's only going to travel so far
so lets mark that point basically the stopping point is
in line with the end of the threads the compression fitting
with the pre bent hard-line hand tighten to the plate
with the jet use a straight edge to make a mark on the tube
directly down from the end of the compression threads now remove the tube
and use a tubing cutter to cleanly cut the tube at that mark
after the cutter has shortened the tube use a reamer to clean out the inside
any loose shavings from the inner diameter of the tube
now grab the compression nut and Farrell and slide the nut on first
and then the Farrell re-check that the jet is still in place and install the tube to
its permanent position
hand tight on the anodized nut first and then while pressing the tube
against the inside of the compression fitting slide the Ferrell in place
and then the nut that gets hand tightened hold the fitting
with a wrench and with another wrench tighten up the compression
nut while still applying light pressure to hold the tube against the stop
inside the fitting you should not be able to pull the tube out of the
fitting
when it's tightened properly now for all kit types
the plumbing for the nitrous side of the system should be complete all the way
from the bottle
through the nitrous solenoid and to the discharge nozzle