Nitrous Express MainLine Nitrous Systems - Manual (Page 3)

Wiring the System
1. Follow the wiring diagram in Figure “C” if no relay is being
used, follow the diagram in Figure “D” if a relay and wide open
throttle is being used (recommended). For proper operation do
not vary from this diagram. Solder and seal all connections with
tape or heat shrink tubing (recommended)
Note: The nitrous and fuel solenoids are rated only for
intermittent duty. Do not engage either solenoid for more
than 15 continuous seconds. Solenoids that have “burned
or scorched” electro-magnets will not be replaced under
warranty.
Testing the System
1. Recheck all installation procedures to be sure
nothing has been omitted.
2. Be sure the nitrous bottle has not been opened and
the supply line is empty!
3. Reconnect the Negative battery cable.
4. Using the toggle switch “ARM” the system.
5. Test solenoid operation by using the system
activation switch. You should hear both solenoids
“CLICK”. If they do not, re-verify all wiring and
retest the system.
6. Carefully open the nitrous bottle and verify that no
fittings or hoses are leaking. Correct any leaks
before proceeding.
7. Do not start the engine if nitrous has been
accidentally injected while the motor was not
running! All nitrous must be cleared from the
engine before starting! A violent intake manifold
explosion could occur!
8. Start engine and check for any fuel leaks. Correct
any leaks before proceeding.
9. The MainLine Nitrous System is now ready for
normal usage.
Additional parts recommended to operate your MainLine nitrous
system satisfactorily:
• Nitrous Pressure gauge (NX PN 15509)
• Purge Valve (NX PN 15600)
• Wide Open Throttle Switch & Bracket (NX
PN 15516 & 15517)
• Bottle Jacket (NX PN 15945)
• Fuel pressure Safety Switch (NX PN 15708
carb or 15718 EFI)
• 30 Amp Relay (NX PN 15515)
• Bottle heater (NX PN 15940)
• NHRA legal blow down vent fitting (NX PN
11709)
• NHRA legal blow down vent tube (NX PN
11708)
• Chemical X Octane booster (NX PN 16003)
• Ford EFI fuel rail fitting eases installation on
Ford products (NX PN 16179)
These or any other MainLine parts can be ordered by calling 1-
888-289-6261 9:00 A.M. – 4:00 P.M. EST
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”.
grd acc power
NEG POS
12 Volt Battery
+
Ground
Switched
12 Volt +
Black 12 Volt +
to Battery
Optional Fuel
Pressure Safety
Switch
White
Ground
Ground
Green
Ground
Ground
Relay
Red Must be Grounded
18GA
14GA
18GA
18GA
18GA
18GA
14GA
14GA
Nitrous Fuel
Figure D
grd acc power
To Keyed 12 Volt +
14GA
14GA
14GA
18GA
14GA
Nitrous Fuel
Figure C
3