Lingenfelter L460145297 Lingenfelter LNC-2001 LS Timing Retard Launch Controller LSA LS9 v1.7 - Manual (Page 7)

Page 6 of 26
• If you are using the timing retard feature, do one of the following:
• Connect a +12 vdc trigger wire from a +12 vdc output source (such as a WOT switch signal or
an output signal from a nitrous controller) to the orange Retard Activation wire on the LNC-
2001. This will allow the +12V retard activation signal to force the retard to the maximum
retard setting on the LNC-2001.
• Connect the LNC-2001 MAP sensor input to the MAP sensor. This allows for the timing retard
to be based on the boost seen by the MAP sensor.
• Install the optional female connector (PN: L480320000) to the analog out signal from another
control device (nitrous controller, traction control module, etc...). Connect the female connector
to the linear signal connector from the LNC-2001. This allows for the timing retard ramp to be
controlled by an external control device when the LNC-2001 is in linear mode.
Launch Control/2-Step Features
The independent coil drive of the LNC-2001 provides sequential ignition kill when RPM limiting is
active. The desired RPM limiting is set as shown on page 4. The activation for the Launch Control/2-
Step function is controlled by the ground (green) or +12 volt (yellow) activation wires.
If you are triggering off of the clutch switch, the 2-step will trigger each time you depress the clutch
pedal. This can be used to provide an ignition cut/torque cut on each gear change to potentially allow
for faster shifts/faster clutch engagement. On MT 2008+ Corvette, 2010+ Camaro, and 2009+ CTS-V,
you will need to use the Lingenfelter CTAP-001 Clutch and Throttle Activation Position switch (PN:
L460190108) to convert the 0-5 volt analog position signal to a +12 volt switched signal. See pages 12-
13 for a clutch activation wiring diagram using the CTAP-001.
If you do not want the 2-step to trigger when you engage the clutch pedal once you are moving then
you will need to install a momentary switch or use the Lingenfelter MPH activated switch (STOV-
002). With the MPH activated switch you can set at what MPH you want the 2-Step activation to be
disabled. Refer to pages 12 and 13 for wiring diagrams that demonstrates how the STOV-002 should be
connected to the LNC-2001.
Timing Retard Features
Up to 15 degrees of timing retard can be applied. The amount of retard is adjusted with the Max Retard
dial and the retard rate is adjusted with the Rate dial. The timing retard function can be triggered three
ways:
• Retard activation wire - orange wire to be connected to a 12 volt DC activation trigger switch
• MAP sensor input connection - to be connected to a GM 3 bar MAP sensor
• MAP sensor input connection - to be connected to a nitrous controller, traction control module, or
other external devices.
For all trigger methods, ignition retard is only active when the engine RPM is above 1,000 RPM. MAP
sensor based retard is only active if a MAP sensor is connected to the MAP sensor input. If the orange
wire is connected (and powered by a +12 volt source) while a MAP sensor is also connected then the
timing retard will go to the maximum retard value set with the Max Retard dial. The Retard may be
activated while the RPM Limiter is active.