Lingenfelter L460015297 Lingenfelter LNC-001 Launch Controller v3.02 - Manual (Page 3)

LNC-001R description:
Sometimes referred to as a 2-step or launch controller, the LNC-001 can be used to provide consistent
launch rpm off the line in drag racing and standing start road racing applications. In turbocharged
applications the use of the LNC-001 also allows the engine to build more boost off the line during the
launch.
The LNC-001 can also be used as an adjustable individual cylinder rpm limiter, providing reliable and
fast acting spark based engine rpm limit control. This is especially useful in vehicles that have auxiliary
fuel control systems where it is not possible to make sure that both the factory ECM/PCM and the
auxiliary systems both turn off fuel at exactly the same time (if the two don’t completely cut fuel at the
same time, instead of having an RPM limiter you will likely go dangerously lean, risking severe engine
damage).
With the new Timing Retard function, the LNC-001 can now also be used to retard timing by up to 10
degrees. This can be used to retard the timing when you trigger a nitrous oxide system or to retard the
timing off the line to build boost in turbocharged vehicle applications (with or without the launch
control RPM active).
The Timing Retard function can be used by itself or while the launch control rpm limit function is
active.
If you are an existing LNC-001 customer that purchased your LNC-001 before the Timing Retard
function was introduced, you can send your LNC-001 in for a software update and then you will have
the new feature as well. If you are not sure if you have this feature, check the case of your LNC-001. On
one side should be a stamp for the batch code. Next to it will be an “R” stamped on the case if you have
the “Retard” function version (see page 13 for image indicating locations of markings).
Please note - although launch controllers like the LNC-001 are often referred to as 2-step control-
lers, they are not true 2-step controllers. A 2-step has a high and a low rpm limit function with a
switch of some type enabling one setting or the other. The LNC-001 only has one rpm limit setting
so if you are using the LNC-001 as a launch control rpm limiter, you will need to use the factory
ECM/PCM as the engine maximum rpm limiter (engine speed governor).
WARNINGS:
Because the LNC-001 acts by disabling spark to individual cylinders (and not fuel
like the production RPM limiters), it is not meant for use on the street or for use on
cars equipped with catalytic converters. The LNC-001 is only for use on race ve-
hicles on the race track. Failure to follow these precautions can result in premature
catalyst failure.
DO NOT operate the engine with the LNC-001 active for extended periods of time.
Because of the raw fuel entering the exhaust, a risk of backfiring exists if you do so.
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