2input #2, 3rpm, 4stage set-up – Nitrous Express Boost Reference Progressive User Manual
Page 5: Input #2, Stage set-up
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I
I
n
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p
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#
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Input #2 tells the controller if this input is seen as active when it is connected to 12 volts or ground.
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R
R
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M
M
RPM Multiplier selects the correct pulse count for the RPM counter. Use the following as a guide to
determine the correct setting:
a)
Using a TACH signal - TACH signals will typically have 1 pulse per cylinder during 2
revolutions of the crankshaft (1 full cycle) and therefore the correct setting would be
÷(½ the number of cylinders)
Example: When using a TACH signal
4 cylinder setting would be ÷2
6 cylinder setting would be ÷3
8 cylinder setting would be ÷4
Note: for LS1 tach signals set the multiplier to ÷2
b)
Using a trigger signal from a coil - first determine how often it fires per revolution of the
crankshaft. The correct setting would be:
x1 for a waste-spark since it fires each revolution of the crankshaft
x2 for a full-sequential since it fires every other revolution.
This setting must be verified prior to operation. Verifying this setting will require the unit to be installed
on the vehicle – see installation instructions later in the manual.
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S
S
t
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a
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g
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e
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-
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u
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p
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The following applies to both Stage 1 and Stage 2, however each stage can be individually
configured.
NX’s “Real Curve” technology allows you to drag and drop any dot on the ramp between 0-100%.
The controller will extrapolate between the dots thus creating a nitrous curve instead of the traditional
ramp. We have provided some additional tools to help smooth the overall curve, which we discuss in
the following sections.
Reset to Straight Line allows you to set the curve to a straight line between the Start and Final
targets. (to simulate a simple ramp)
Smooth When Dragging when checked will drag multiple dots along with the selected one. It will
attempt to soften rapid transitions from one step to the next in an effort to create a curve
Smooth Points will apply a smoothing algorithm to your curve. This button can be pressed multiple
times until the desired curve is achieved
Undo is an undo button. If you applied the smooth points feature or dragged a dot, this feature will
undo the change. It has multiple levels so you can undo several changes
NX - rev A