Nitrous Express Honda NXL - Manual (Page 4)

2. Never interchange solenoids or other appliances
used for one compressed gas with those used for
another.
3. Identify the gas content by the label on the bottle
before using. If the bottle is not identified to show
the gas contained, return the bottle to the sup-
plier.
4. Do not deface or remove any markings, which are
used for content identification.
5. Cylinder valves should be closed except when
nitrous is actually being used.
6. Notify supplier of any condition which might
have permitted any foreign matter to enter the
valve or bottle.
7. Never drop or violently strike the bottle
8. Keep valves closed on all empty bottles to prevent
accidental contamination. Open the bottle valve
for an instant to clear opening of any possible dust
or dirt before usage. Aim bottle outlet away from
all body parts. Do not point it in the direction of a
person.
POWER TUNING TIPS
Nitrous oxide works well with all applications: 4
cycle, 2 cycle, diesel, and rotary engines. Each one
has individual tuning characteristics, and these tips
apply generally to each one. Nitrous oxide is referred
to as “Liquid Supercharging” because it, in effect,
does the same thing as a mechanical supercharger,
forcing more fuel and oxygen into each cylinder,
thus producing more power. The biggest enemy of
all supercharged, turbo charged and nitrous injected
engines is “DETONATION”. The use of higher-
octane fuel, and/or a combination of better fuel and
timing retard can control this. Remember detonation
is a spark plug, head gasket and engine “KILLER”.
1. Your engine should be tuned to its maximum
power prior to nitrous usage.
2. The ignition is an integral part of the nitrous
system and must be able to ignite the mixture
under very high cylinder pressures. The hotter
the spark the better!
3. In stock engine applications and street usage,
the spark plugs should be at least 2 steps colder
than stock. Do not use platinum tip, extended tip
or any plug with multiple ground straps or split
ground straps. When in doubt about heat range,
always go one step colder. A spark plug that is too
“Hot” will cause detonation, burned plugs, poor
performance, and engine damage. In competi-
tion engines, always use the coldest plug avail-
able. Never use an extended tip plug in a racing
engine.
4. The NX nitrous system is so advanced (technol-
ogy, engineering, and workmanship), that huge
amounts of timing retard is not required. You may
run as much timing as you normally would if you
have the octane required to prevent detonation.
We recommend 1 degree timing retard for each 50
horsepower boost as a starting point. Your engine
may need more or less depending on your combi-
nation.
5. Your fuel system is also an integral part of the
nitrous system, be sure it is in top shape and all
filters are clean.
6. Engine operating temperature should be between
160 and 200 degrees prior to nitrous usage.
7. Never “lug” your engine and hit the nitrous
system; use the system at wide-open throttle only,
nitrous should not be used below 2000 rpm’s. If
you do any of the above, a serious “Back Fire”
could result in engine damage.
8. The better the exhaust system, the better the
nitrous system will work.
9. Do not attempt to drill or alter the jets, solenoids,
or the tubes in the nitrous plate. These items are
engineered to their maximum capability. Any
modification you can make will decrease power
and destroy engine parts.
10. Do not mix or attempt to match any other brand
solenoids with this system. Do not attempt to mix
or match any other brand plate or nozzle with this
system. Do not attempt to use any other brand kit
as a second stage with this system. Our nitrous
technology is far superior to any of our com-
petitors. Any attempt at this could lead to serious
engine damage.
11. All of our systems are designed to operate at 1000-
PSI bottle pressure. This is extremely important
and cannot be stressed enough. If your bottle pres-
sure is below 1,000 PSI the system will run rich
and will not produce the advertised horsepower.
If the bottle pressure is above 1,050 PSI the
system will run lean, possibly damaging engine
parts. This pressure is easily monitored by using
a NX liquid filled pressure gauge (PN 15509).
Note: When the ambient temperature is below 97
degrees, a bottle warmer is required (PN 15940 or
15941). An NX bottle jacket (PN15945 or 15946)
will help stabilize bottle pressure in the winter and