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Installation Instructions For
Lingenfelter LNC-003Dual RPM Launch Controller
Adjustable 2-Step RPM Limiter For GM LSx Series Engines
PN: L4601052971557 Winchester RoadDecatur, Indiana 46733 260 724 2552 phone
260 724 8761 faxwww.lingenfelter.com
Parts List # Part number Description 1 LNC-003 LPE Dual RPM Launch Controller 1 72” trigger wire harness (part of PN LNC-003) 2 hook & loop tape, 3.5” length 4 AV16037 self-tapping screw 1 L920010000 LPE decal 1 instructions
Optional Items • Transientvoltagesuppressiondiode L450080000 •MPHactivatedswitch L460050000 • LEDforindicatorlight • Red12vdcLEDwith30cmleads L450030000 •Green12vdcLEDwith30cmleads L450040000 • Sealed40ampheavydutyrelaykit L450100000 • RedLEDlightedpaddletoggleswitch,20amp DC-7600500
Specifications:• CustommoldedhightemperatureglassfilledNylon6enclosurewithdirectaccesstothecontroller
settingswithoutrequiringremovalofacoveroraccesspanel.• 40MHz16-bitautomotivequalifiedprocessorwitheightchannelEnhancedTimeModule.• EachcoildrivecircuithasadedicatedtimertokeepthetimingaccurateoverthefullRPMrange.• IndependentcoildriveprovidesSequentialIgnitionKillwhenRPMlimitingisactive.• Reversebatteryprotection.• Bothoftheactivationinputshaveactiveclampsandopticalisolationtosuppresselectricalnoise
fromexternalsolenoids(suchastransbrakeandlinelock).• Digitalfilterprovidedinsoftwaretofurtherisolateelectricalnoiseontheactivationinputs.• SeparatePrimaryandSecondaryRPMx100&RPMx1000switchesforeasiersettingadjustments.• RPMlimiteractivationpointcanbeadjustedfrom1500to9,900RPMin100RPMincrements.• Both Ground Activation and +12 Volt ActivationinputsareprovidedforthePrimaryRPMlimit
activation.• Dedicated+12voltactivationinputfortheSecondaryRPMlimiter.• Trueplug-and-playcoilpackconnectiondesignforeaseofinstallationandremoval.• Fullyencapsulated(potted)constructionforaddeddurability.• 90daywarranty(fromdateofpurchase).
Page 1 of 11
LNC-003 description:TheLNC-003DualRPMLaunchControllerisatrue2-StepsparkbasedRPMlimiterforusewithLSxbasedenginesandignitionsystems.TheLNC-003providestwoRPMlimitsettings-aPrimaryandaSecondary.
TheLNC-003canbeusedtoprovideconsistentlaunchRPMoffthelineindragracingandotherstandingstartracingapplications.InturbochargedapplicationstheLNC-003canalsobeusedtoloadtheengineandhelpbuildadditionalboostofftheline.
TheLNC-003canalsobeusedasanadjustableindividualcylinderRPMlimiter,providingreliableandfastactingsparkbasedengineRPMlimitcontrol.ThisisespeciallyusefulinvehiclesthathaveauxiliaryfuelcontrolsystemswhereitisnotpossibletomakesurethatboththefactoryECM/PCMandtheauxiliarysystemsbothturnofffuelatexactlythesametime.Thereasonthisisimportantisthatifthetwodon’tcompletelycutfuelatthesametimeyouwillrunleanwhentheonesystemcutsofftheinjectors(butnottheother),riskingsevereenginedamage.
WARNINGS:
The RPM limiter function of the LNC-003 acts by disabling spark to individual cylinders and not fuel like most production RPM limiters so the 2-Step/Launch Control function is not meant for use on the street or for use on cars equipped with catalytic converters. The 2-Step/Launch Control function of the LNC-003 is only for use at the race track on race vehicles not equipped with catalysts. Failure to follow these precautions can result in premature catalyst failure.
DO NOT operate the engine with the LNC-003 RPM limit active for extended periods of time. Due to the raw fuel in the exhaust when the RPM limit is active, a risk of backfiring exists if you do so.
DO NOTplaceindirectexposuretoexhaustmanifolds,turbochargerturbinehousingsorotherunderhooditemsthatarehightemperatureheatsources(radiatedheatsources).Thewarrantydoesnotcoverdamageduetomeltedenclosuresorwiringduetoimproperinstallation.
Do NOTsubmergetheControllerinliquidordirectlywashtheunitwithliquidofanytype!TheswitchesontheLNC-003aresealedbutareNOTratedforhighpressurewash,usecautionifpowerwashing near the LNC-003 controller
Page 2 of 11
Page 3 of 11
Switches and indicator lights:Red (Power) LED:• Comesonsolidonstart-up(poweron)• WhenactiveRPMisreached,redLEDwill
blink(evenifactivationwireisnottriggered)Green (Activation) LED:• Slowblinkrate(4Hz)forPrimaryActivation
only• Mediumblinkrate(8Hz)forSecondary
Activationonly• Fastblinkrate(16Hz)forbothPrimaryandSecondaryinputsonSettings:• Controlledbytwo(2)tenpositionswitches(PrimaryRPM)andtwo(2)sixteenpositionswitches
(Secondary RPM limit) o Two(2)tenpositionswitchesforselectinghundredsofRPM(x100)andthousandsofRPM(x1000)
forthePrimaryRPMlimitsetting o Two(2)sixteenpositionswitchesforselectinghundredsofRPM(x100)andthousandsofRPM
(x1000)fortheSecondaryRPMlimitsetting.Switchpositionsafter9notused.Notes:• TheLNC-003RPMlimiterfunctionwillnottriggeratRPMlevelsbelow1500RPM• IfboththePrimaryandtheSecondaryRPMlimitareenabledthenthePrimarysettingisselected• ThePrimaryRPMlimitsettingcanbesethigherorlower(orthesameas)theSecondaryRPMlimit
setting• Changes to the switch point settings (RPM, Degrees, Rate) must be done with the ignition off
o Theswitchpositionsareonlyreadonstartup
Example settings:
• 1900RPMactivationpointforlaunchcontrolo Upper(x100)RPMswitchonposition9o Lower(x1000)RPMswitchonposition1
• 6900RPMactivationpointforRPMlimitero Upper(x100)RPMswitchonposition9o Lower(x1000)RPMswitchonposition6 0 56789
1234
0 567891234
100's Switch (x100 RPM)
1000's Switch (x1000 RPM)
RPM ProgrammingSwitches
0 567891234
0 567891234
100's Switch (x100 RPM)
1000's Switch (x1000 RPM)
RPM ProgrammingSwitches
Page 4 of 11
Installation:• Makesuretheignitionisoffbeforebeginning
installation.• YoucanmounttheLNC-003usingthesuppliedhook
and loop tape or the supplied self tapping screws.• DoNOTmounttheLNC-003directlyontopofthe
engineorneartheexhaustmanifoldsduetoheatconcerns.
• DoNOTmounttheLNC-003inthelineofsiteofhightemperatureobjectssuchasexhaustmanifolds,turbinehousingsetc.Ifneeded,putaheatshieldinbetweentheheatsourceandthemoduletoprotecttheplasticcase.
• DoNOTinstallwithin6”ofnitroussolenoidsorotherdeviceswithstrongmagneticfields.• Ifyouhaverelocatedcoilpacks,donotrunthehighvoltagesparkplugwiresalongsidethelow
voltagecoilpackwires.Keepthewiresasfarapartaspossibleand,iftheydohavetointersect,havethemintersectatrightangles.
• Disconnectthepackconnectorsoneachsideoftheengine and then plug the LNC-003 wiring harnesses in betweenoneachside.ItdoesnotmatterwhichbankofcylinderseachsideoftheLNC-003harnessconnectsto.
• Theonlywiringthatisrequiredisforthetriggerwire(s)dependingonhowyouwanttoenablethedevice.Seepage7foranexamplevehiclewiringdiagram.
• ThepossiblePrimaryRPMtrigger/activationconnectionmethodsare:• Groundactivationwire(green)-connectthiswiretoasourcethatsuppliesagroundpathwhen
youwanttheLNC-003tobecomeactive• +12voltactivationwire(yellow)-connectthiswiretoasourcethatsupplies+12voltswhen
youwanttheLNC-003tobecomeactive(i.e.brakelightswitch,line-locksolenoid)• Switchconnectedinbetweenthegroundactivationwireandthe+12voltactivationwire(green
wireconnectedtoyellowwirethroughaswitch,usuallyamomentaryswitch)• Groundactivationwireconnectedto+12voltactivationwire(greenconnectedtoyellow)for
standardRPMlimiteroperation(LNC-003alwaysactive)• SetthedesiredPrimaryRPMswitchactivationpointusingthetwotenpositionrotaryswitchesfor
the1000RPMincrement(x1000)andthe100RPMincrement(x100).• TheSecondaryRPMtrigger/activationconnectionmethodis:
• +12voltactivationwire(orange)-connectthiswiretoasourcethatsupplies+12voltswhenyouwanttheSecondaryRPMlimitoftheLNC-003tobecomeactive(i.e.brakelightswitch,line-locksolenoid)
• SetthedesiredSecondaryRPMswitchactivationpointusingthetwo(2)sixteenpositionswitchesforselectinghundredsofRPM(x100)andthousandsofRPM(x1000)fortheSecondaryRPMlimitsetting.Switchpositionsafter9arenotused.
Page 5 of 11
Launch Control/2-Step FeaturesTheindependentcoildriveoftheLNC-003providessequentialignitionkillwhenRPMlimitingisactive.ThedesiredRPMlimitingissetasshownonpage3.TheactivationforthePrimaryRPMsettingoftheLaunchControl/2-Stepfunctioniscontrolledbytheground(green)or+12volt(yellow)activationwires.TheactivationfortheSecondaryRPMsettingoftheLaunchControl/2-Stepfunctioniscontrolledbythe+12volt(orange)activationwire.
Ifyouaretriggeringoffoftheclutchswitch,the2-Stepwilltriggereachtimeyoudepresstheclutchpedal.Thiscanbeusedtoprovideanignitioncut/torquecutoneachgearchangetopotentiallyallowforfastershifts/fasterclutchengagement.
Ifyoudonotwantthe2-SteptotriggerwhenyouengagetheclutchpedalonceyouaremovingthenyouwillneedtoinstallamomentaryswitchorusetheLingenfelterMPHactivatedswitch.WiththeMPHactivatedswitchyoucansetatwhatMPHyouwantthe2-Stepactivationtobedisabled.Additional notes:TheLNC-003isdesignedforuseonallknownGMLSseriesengineapplications(LS1,LS6,LS2,LS7,LS3,LQ4,L76,L92andotherGenIIIandIVGMV8applicationsalongwithotherGMV8enginesusingthesameignitioncoilsystem)includingthefollowingvehicles:
• 1997-2004C5Corvette• 2005-2009C6Corvette(includingZ06)• 1998-2002LS1V8equippedCamaroandFirebird• 2004-2006PontiacGTO• 2008-2009PontiacG8withtheL76ortheLS3engine• 2004-2006CadillacCTS-V• 1999-2008GMCKtrucks(Tahoe,Yukon,Escalade,H2,Sierra,Silverado,Avalanche)withthe4.8,5.3,6.0and
6.2LGenIIIandIVV8engines(willnotworkon305&350Vortecengines)• 2003-2006ChevroletSSR• 2006-2008TrailblazerSSandotherS/Tbodytruckswiththe4.8,5.3and6.0LGenIII&IVGMV8engines
TheLNC-003shouldfunctiononthefollowingvehicles/enginesbuthasnotyetbeentestedonthem:• CKtruckswith8.1LV8engines(L19)withindividualcoilignitions• Frontwheeldrive5.3LLS4GenIVV8equippedcars(ImpalaSS,GrandPrix&MonteCarlo)
TheLNC-003shouldalsofunctionwiththeseproductsbuthasnotyetbeentestedwiththem:• AftermarketcoilsfortheLSseriesengines(suchastheMSDcoils)usedwithGMECM/PCM.• Aftermarketenginemanagementsystemsandignitionsystems(Accel,BigStuff3,Motec,FAST,MSD,etc.)thatrun
theproductionGMcoils.
The LNC-003 will NOT work with other individual coil ignition systems like those found on the GM Northstar or Ecotec engines or on the Ford modular V8 and the Chrylser Hemi V8.Important Information regarding spark plug wires and spark plugs:YoumustusenoisesuppressionignitionwiresandresistortypesparkplugswiththisController.TheLNC-003ControllercontainsHighFrequencyDigitalElectronicsandwillNOTfunctioncorrectlywithoutNoiseSuppressionWires!
Nitrous, line-lock and trans-brake solenoid warning:
LPEhasfoundthatthesesolenoidscancausefly-backvoltagelevelsattimesinexcessof600volts.ThesevoltagelevelshavethepotentialtodamagesensitiveelectronicsincludingtheLNC-003,thePCM/ECMandothermodulesinthevehicle.LingenfelterPerformanceEngineeringhasdevelopeda
Page 6 of 11
transientvoltagesuppression(TVS)diodekit(PNL450080000)forusewithline-locksolenoids,trans-brakesolenoidsandotheraftermarketautomotivesolenoidsofthistype.LPErecommendstheuseofournoisesuppressiondiodeonallvehiclesthathavealinelockortrans-brake.
For additional product installation information and technical support, contact LPE or your LPE products distributor. You can also find technical support and usage discussions regarding this product and many other LPE products in our Internet forums:
http://www.lingenfelter.com/LPEforumfiles
NOTICES:Itistheresponsibilityofthepurchasertofollowallguidelinesandsafetyproceduressuppliedwiththisproductandanyothermanufacturesproductusedwiththisproduct.Itisalsotheresponsibilityofthepurchasertodeterminecompatibilityofthisdevicewiththevehicleandothercomponents.LingenfelterPerformanceEngineeringassumesnoresponsibilityfordamagesresultingfromaccident,improperinstallation,misuse,abuse,improperoperation,lackofreasonablecare,orallpreviouslystatedreasonsduetoincompatibilitywithothermanufacturer’sproducts.LingenfelterPerformanceEngineeringassumesnoresponsibilityorliabilityfordamagesincurredfromtheuseofproductsmanufacturedorsoldbyLingenfelterPerformanceEngineeringonvehiclesusedforcompetitionracing.LingenfelterPerformanceEngineeringneitherrecommendsnorapprovestheuseofproductsmanufacturedorsoldbyLingenfelterPerformanceEngineeringonvehicleswhichmaybedrivenonpublichighwaysorroads,andassumesnoresponsibilityfordamagesincurredfromsuchuse.Itisthepurchaser’sresponsibilitytocheckthestateandlocallawsandsanctioningbodyrequirementspertainingtotheuseofthisproductforracingapplications.LingenfelterPerformanceEngineeringdoesnotrecommendnorcondonetheuseofitsproductsforillegalstreetracing.
1557 Winchester RoadDecatur, Indiana 46733 260 724 2552 phone
260 724 8761 faxwww.lingenfelter.com
Page 7 of 11
SecondaryRPM
x1000 x100
Orange = +12V SecondaryRPM Activation
LNC-003Dual RPM Launch Controller
Manual Transmission with Linelock
1
1 - Locate CPP (Clutch Position Switch) and unplug 2-wire connector.
2 - Cut wires appox. 3" back from connector.
3 - Find +12 volt Key On power source and connect to one wire of CPP connector.
4 - Splice two wires onto remaining CPP connector wire and connect one wire to #85 on Relay.The extra wire will be used for LNC-002 Launch Controller activation.
5 - Connect terminal #86 on Relay to Ground.
6 - Connect wires cut from CPP Switch connector to Terminals #30 and #87 as shown.
Wire color illustrated isfor 1999 TransAm
+12VFuse5 Amp
85
86
30
87a 87
2 3
64
Ground
5
Connect wires cut from CPPSwitch connector in Step 2 to Relay as shown.
General purposeAutomotive Relay.5 to 40 Amp
Toggle Switch
Arms Linelockand 2-Step
Ground
MomentarySwitch
85
86
30
87a 87
Ground
LinelockSolenoid
+12V
Ground
Optional LED, On whenArming Switch is ON andClutch Pedal is depressed.
Remove Switch andwire direct to make2-Step active withclutch switch only.
Relay can be omitted if Linelock Solenoidhas a lower current/amp draw than theMomentary Switch rating.
Secondary RPM Activation, apply a+12 volt signal to enable SecondaryLaunch RPM.
SecondaryRPM
x1000 x100
Orange = +12V SecondaryRPM Activation
LNC-003Dual RPM Launch Controller
Secondary RPM Activation, apply a+12 volt signal to enable SecondaryLaunch RPM.
Manual Transmission with Linelock & Nitrous
1
1 - Locate CPP (Clutch Position Switch) and unplug 2-wire connector.
2 - Cut wires appox. 3" back from connector.
3 - Find +12 volt Key On power source and connect to one wire of CPP connector.
4 - Splice two wires onto remaining CPP connector wire and connect one wire to #85 on Relay.The extra wire will be used for LNC-003 Launch Controller activation.
5 - Connect terminal #86 on Relay to Ground.
6 - Connect wires cut from CPP Switch connector to Terminals #30 and #87 as shown.
Wire color illustrated isfor 1999 TransAm
+12VFuse5 Amp
85
86
30
87a 87
2 3
64
Ground
5
Connect wires cut from CPPSwitch connector in Step 2 to Relay as shown.
General purposeAutomotive Relay.5 to 40 Amp
Toggle Switch
Arms Linelockand 2-Step
Ground
MomentarySwitch
85
86
30
87a 87
Ground
LinelockSolenoid
+12V
Ground
Optional LED, On whenArming Switch is ON andClutch Pedal is depressed.
Remove Switch andwire direct to make2-Step active withclutch switch only.
Relay can be omitted if Linelock Solenoidhas a lower current/amp draw than theMomentary Switch rating.
WOT Switch
85
86
30
87a 87
Ground
To Nitrous Relay
Page 8 of 11
Page 9 of 11
SecondaryRPM
x1000 x100
Orange = +12V SecondaryRPM Activation
LNC-003Dual RPM Launch Controller
Momentary Switch MUST be capable of supplying currentdraw of Linelock Solenoid. If switch is rated at a lower amperage
than the solenoid, a Relay MUST be used. See Diagram forManual Transmission installation for Relay wiring details.
Optional LED, On whenArming Switch is ON.
Automatic Transmission with Linelock
Secondary RPM Activation, apply a+12 volt signal to enable SecondaryLaunch RPM.
+12V
Toggle Switch
Ground
MomentarySwitch
Ground
LinelockSolenoid
(Arms 2-Step and Linelock)
Fuse20 Amp
Page 10 of 11
SecondaryRPM
x1000 x100
Orange = +12V SecondaryRPM Activation
LNC-003Dual RPM Launch Controller
Momentary Switch MUST be capable ofsupplying current draw of Linelock Solenoid.If switch is rated at a lower amperage thanthe solenoid, a Relay MUST be used. SeeDiagram for Manual Transmission installation for Relay wiring details.
Optional LED, On whenArming Switch is ON.
Automatic Transmission with Linelock & Nitrous
Ground
Secondary RPM Activation, apply a+12 volt signal to enable SecondaryLaunch RPM.
MomentarySwitch
+12V
Toggle Switch
Ground
MomentarySwitch
Ground
LinelockSolenoid
(Arms 2-Step and Linelock)
Fuse20 Amp
85
86
30
87a 87
WOT Switch
The "Nitrous Disable Relay" is used to disconnect the"Wide Open Throttle" switch from the Nitrous Relay.This allows the throttle to go wide open while theLinelock / 2-Step is Active and the Nitrous willremain OFF until the Linelock is released.
Nitrous Disable Relay
To Nitrous Relay
Page 11 of 11L460105297LNC-003DualRPMLaunchControllerv1.1.indd
C8 OUT
C7 OUT
C5 OUT
C3 OUT
C1 OUTC2 OUT
C4 OUT
C6 OUT
C8 IN
C6 IN
C4 IN
C2 IN
C1 IN
C3 IN
C5 IN
C7 IN
Black
Red
Purple
White
Green
Yellow
Blue
Gray
BrownOrange
Yellow
Blue
Gray
Red
Black
Brown
Orange
White
Purple
Green
+12V
GND
+12V
GND
Yellow
Green
ACT+
ACT-
BOTTOMHOLES
TOPHOLES
LNC-003 Wiring Diagram
Male Pin
Female Pin
Male Pin
Male Pin
G
F
B C
F G
CB
H
G
C
G F
B
F
B
CH
AA
H EFG
A B C
H EFG
A B C
HGFE
ABC
HGFE
ABC
Harness #1
Harness #2
20GA Jumper(s), 8" long.
MaleFemale
Female
Male
Female
Male
Cut harness wires 50" in length.Finished trim length = 48"
20 Gauge
Male Female
Male FemaleOrange
SECONDARY ACT+
Cut 4-Wires 6 Feet Long, 20 GaugeCut 4-Wires 14" Long20 Gauge
Cut Wire Loom 42" Long