Lingenfelter L460240000 Lingenfelter NCC-002 Nitrous Control Center v1.5 - Manual (Page 35)

Installation of the NCC-002 Nitrous Control Center 34
3.1.12 NCC-002 Connected to the Clutch Position Switch
Use this configuration to connect the NCC-002 to a Clutch Pedal Position Switch, line-lock, or trans-brake. The
Clutch pedal position switch will be connected to the "Clutch Input" terminal on the NCC-002.
The Clutch Input to the NCC-002 needs to be an open circuit when the clutch is released and either a ground
or +12 volt signal when the clutch is engaged (clutch pedal depressed). The +12 volt or ground activation input
must be configured through the
input polarity options menu on the NCC-002 controller.
With the arming switch enabled and the vehicle at the line, depressing the clutch pedal disables the nitrous,
even though the throttle may be above the TPS enable percentage. When the clutch is released, the system is
enabled and nitrous can flow. During each gear change, the nitrous will be disabled until the clutch is released
again.
On the 1998-2002 Camaro and Firebird (F-Body) and 1997-2008 Corvette clutch switch, a relay must be added
to the circuit to convert the cranking switch position voltage to ignition switched voltage. The use of a relay, as
shown in the wiring diagram below, is necessary due to the fact that the clutch pedal position switch is only
powered during vehicle start-up. When connecting to the clutch switch, be sure to use the clutch switch at the
bottom of the travel. This is the one tied to the static system. Do not use the one at the top of the travel, which
is the cruise control disable switch. This switch tends to send erratic signals.
NOTE: The wire colors and pin positions in the following wiring diagram may differ from the wiring in
your vehicle. Identify the wires of the clutch pedal position switch in your vehicle and confirm their
individual functions before beginning the modification below.
•
Locate the clutch pedal position switch and unplug the two-wire connector.
•
Cut the wires approximately three inches back from the connector
•
Locate a +12 volt key-on power source and connect the source to the clutch pedal position switch power wire.
•
Use the labeled wire from the NCC-002 wiring harness or crimp a terminal to the one end of the wire for the
following step.
•
Splice two wires onto the remaining connector wire. One of these wires will go to the "Clutch Input" terminal
on the NCC-002 controller while the other wire will be going to pin 85 of a standard automotive relay.
•
Program the Clutch Input Polarity on the NCC-002 controller.