Nitrous Express Water Methanol Stage 2 - Manual (Page 5)

NO3 Prong To 12V Key-
On Power
Pump
Low Fluid LED
Injection Status LED
Air Flow
Throttle Plate
+12 Volt Key On
Engine Ground
Wire Connection
Boost Switch
Red
Red
20A Fuse
White
Black
Black
Yellow
Boost Line To Engine
Boost Source
Green
Red Wire To
COM Prong
Black
Black
To Battery Positive (+)
Level Switch
Red
• Road test vehicle and adjust FULL dial until a smooth power curve is felt with no misfi ring. Often the full
dial can be set lower than the max output of the MAF for more cooling. If any bucking or bogging is experienced,
increase the full point until it is eliminated. If bucking is felt at the onset of injection, increase the start point.
Controller Operation Example
For setting 1, left, the chart shows the Start dial at 2 volts and the Full dial at 4 volts. At 2 volts from the MAF,
the pump will operate at 10%. At 4 volts from the MAF, the pump will deliver 100% of injection pressure.
For MAF voltage readings between the Start and Full settings, the controller will linearly adjust the pump out-
put as shown on the graph. Note the chart on the controller itself. This shows what settings are associated with
particular voltages and HZ values for the various modes available.
Example:
In most applications, the start dial should initially be set at the 12:00 position, so that typical airfl ow levels in
normal driving do not trigger injection needlessly. The full dial should be all the way to the clockwise position.
Start tuning by carefully trying lower start point settings. If bogging is experienced at the onset of injection,
move the start dial back up a small amount. Then try lower and lower points for the full setting. If bogging is
experienced as injection ramps up, turn the full point back up to a safe level. The engine should run with no
bogging or miss-fi res. Be sure to make small changes and then test them each time to avoid any drastic differ-
ences in injection.
0
20
40
60
80
100
2 2.5 3 3.5 4 4.5 5
Mass Air Flow (MAF) Sensor Voltage
Start
Pump Output %
Full