Link Engine Management

Xtreme

The ultimate in engine management.

Designed and built to be the best, the Xtreme

delivers the results, with more functions than normally

demanded by both tuner and driver.

Xtreme Wire-In Engine Management

• eightinjectiondrives • eightignitionoutputs

• tenanaloginputs • fourtemperatureinputs

• tendigitalinputs • eightauxiliaryoutputs

• two,thirtyfourpin,waterproofconnectors • e-throttle(externaldevice)

• external,2.5baror5bar,MAPsensor(soldseparately)

• Upto6Dfuelandignitionmapping

• Precisionclosedloopcamcontrol(fourcam,independentcontrol)

• Digitaltriggering,allOEMpatterns

• OEMidlehardwaresupported

• Upto8channelsequentialfuelandignition

• Largenumberconfigurableinputandoutputchannels

• Digitaltriggering,allOEMpatterns

• Rotary-uptofourrotors,fullysequentiallystagedinjectionandsequentialignition

• OEMidlehardwaresupported

• 8peakandholdindividuallyconfigurableinjectiondrives(referencedtogear,speedorthrottlepositionetc)

• 6Dboostcontrolwiththreeswitchabletables

• Motorsportfeatures-antilag,launchcontrol,flatshift

• Continuousbarometriccorrection(onboard)

• CANport

• QuickTune-automatedfueltuning

• Individualfuel,cylinder&ignitioncorrection

• Odd-fireengines&two-strokes

• USBtuningcableincluded

• Statsrecordingintoon-boardmemory

• Gearcompensationsforspark,boostetc

• Realtimeselectabledualfuel,ignitionandboostmaps

• SyncandcranksensorscanbeacombinationofHalleffect,variablereluctanceoroptical

• 4Mbinternalloggingmemory

• Stagedinjection

• Closedloopknockcontrol

• Electronicthrottlecontrolviaexternalmoduleavailableseparately(seephotoabove)

• 8auxiliaryoutputs

• 8analoginputs

• Firmwareupdatesvialinkecu.com

G4XtremeFeaturesIndividualCylinder,ClosedLoop,KnockControl

zoneswithinthesetablesaremodifieddynamicallybytheECUupondetectionofknock.Timingisretardedondetectionof knock in theparticular zone, usingconfigurablesensitivityandclampingproperties.Thisallhappenswithintheboundsofmicroseconds.

TheG4Xtremecanbeconfigured togradually re-introduce timing advance, at a rate governed by the speedanddelayofwhichtheuserhasspecifiedinthesettings when knock is no longer detected.

UptoSixDimensionsofFuel&IgnitionTuningUnder most circumstances a 3D Fuel Table issufficient. RPM is typically used for one axiswithload (typically represented by MAP or MGP) onanother axis. The 3rd axis/dimension is the fuelzone value.

This 3D mapping will bevery familiar to the average tuner and a 3D surfacerepresenting the fuelingcan be easily visualised or physically displayed byselectingSurfaceGraph.

Inspecialcases3Dmappingmay not be adequatelyflexible to cope with alloperatingparameters.

Multi-throttle turbo charged enginestypicallyshowanexampleofthis.Withthethrottlewide-openataMAPvalueof,forexample,200kPaandanenginespeedof5000rpmtheenginewillhaveconsiderablydifferentfuelingrequirements

thanwiththethrottlehalfopenandthesameMAPand engine speed. In this case the 4D FuelTabletablemaybeused.Thissecondtablemaybespannedusingthrottlepositionontheloadaxis.

Whena4D/5D/6Dtable isturnedon,itsTableActivationmode can be selected. This allows the 4D or 5D FuelTable to become active only under certain conditions. This isuseful if anexternalswitch or switching outputis required to activate thetable(e.g.switchinginthe4DFuelTablewhenthenitroussolenoid becomes active).If the table is required tobe always active, set this adjustmenttoAlwaysON.

Aswithalltables,4Dand5DFuelTablescanhavetheirX andY axis parameters selected and theirrow/columnlocationsadjusted.

Knock, also known as detonation refers to thespontaneouscombustionofanair/fuelmixtureinsideacombustionchamber.Knockisinducedbyexcessivepressurewithinthecombustionchambercausingtheair/fuelmixturetoselfdetonate.Thesepressurescanbearesultofhighenginetemperature,inappropriateturboboostpressure,excessiveinletairtemperature,and ignition timing which is over advanced.

The Link G4 Xtreme ECU is capable of detectingknock by using factory, or after market knock sensors. By applying user configurable ‘time windowing’techniques and filtering options the Xtreme willdetermine which cylinder has knock, and the severity of the knock. 3D knock level threshold tables areusedtopreventfalsedetectioncausedbymechanicalengine noise.

Each individual cylinder can be assignedwith a 3Dknock ignition trim table. These tables are generally spanned using ‘RPM’ and ‘Load’ as their axis, and

DynamicConfigurationThismeans that the tuner cannowconfigure theECU to meet any requirements they may deemnecessary.Previouslytunershadtooperatewithinwhat the Link engineers defined, at the time ofwriting the firmware.The result of this absoluteflexibilityisthatG4ECUscanbecustomisedbythetunertooptimiseanyengine.

FullyConfigurable,VariableCamControlPrecision closedloop cam controlforuptofourcams,i n d e p e n d e n t l ycontrolled, with feedback so that the ECU knowsexactly where they are at all times. Precise camcontrolisthewindowtoperformanceformodern,high performance engines and G4 ECUs provideprecisioncamcontrolasastandardfeature.

“QuickKeysforFastTuning”TunersaredelightinginthenewPCLink4.OneofthemanyreasonsforthisisthatallmajortuningcanbedonewithoutusingthemouseusingQuickKeys.Anotherpowerfulfeatureisthecopy/pastefunctionwithinthevariousmaps.

Diagnostics—“What’sBeenHappening”G4ECUs log all information fordisplay at a laterdateviaPCLink.Max/mintemperatures,pressures,number of times limits are hit etc. are all recorded.

CompatibilityEngine, triggering andVVT (variable valve timing)is pre-configured and selectable via “drop-down”menus.Ifyourengineisnotlistedyoucanconfigureyourownrequirements.

ConfigurabilityAllinputsandoutputsandcompletelyconfigurablee.g. any analogue input can be used for any inputtypeandastheaxisforanytableorinputswitchingfunction.

SensorsChoosefromourlistorcustomconfiguretheinputchannels to match your sensor.

BoostControlSelect up to three boost tables and configurewhentheyareapplied.Gear/TPS/temperature,anyconditionyouwanttoapplytoboostcontrol.

AFRTargetTableTheAFR(air,fuelratio)isacriticalpartoftheG4’sfuelcalculation.Oncetheengineistuned,adjustmentstotheAFRcanbemade,justbychangingtheAFRtargettable, without the need to retune the fuel table

QuickTuneYourFuelUsing PCLink, QuickTune is an interactivetuningtoolthatassistsintimeefficientfueltuning. A graphical display ofTargetAFR(desired AFR) and Actual AFR (measuredAFR)isprovided.Adualpointergaugeallowsthe tuner to quickly see how closeActualAFRistotheTargetAFR.QuickTunecanbesetuptooperateovertheentirefueltableorjustoveraparticulararea.QuickTunecanbeusedinManualorAutomaticmodes.InManualmode,QuickTuneguidesyoutocellcentering and advises you when is a suitable timetomakeafueltableadjustment.Withthepressof a key a calculated adjustmentismade. Oftenonlyoneor twoadjustments arerequired to tune each cell. InAutomatic modeQuickTunedoesalltheadjustmentsforyou.This

leaves the tuner free to operate the Dyno orperformothertuningworksuchasmakingignitionorcamangleadjustments.

DisplayLink“FullInformationatyourFingertips”

Pluginandgo,realtimedriverdisplay.UserslovetheDisplayLink due to its ease of use, fascinatinginsightintowhatishappeningwiththeengineandthefactthattheycan’t“messuptheECU”.

ConnecttheDisplayLink,itworks“outofthebox”.Selectwhatyouneedtosee,theDisplayLinkprovidesthe instrumentation and information desired, both whiletheengineisrunningandsubsequentlyfromthe internal memory.

All settings, menusand information are accessible using the five built-in buttons.Warnings are activated if inputsgooutofrange,abuiltinwarninglightalertsthedriver and theconditionpresentedgraphically(evenindirectsunlight).

PCLink-TuningYourG4Xtreme

Gauges• Varietyofdifferentconfigurablegaugetypes

• Highlyvisiblewarnings

Logging• Record,save,downloadandanalysedatalogfiles.

• Customisablecolorthemes

• Loganalysisviews:TimePlot,Navigator,XYPlot,Statistics,Histogram,ValueList,ParameterList

• Overlayandoffsetlapsandfilesforcomparison.

• Globaltimeandcursorlinking

• Record, analyse and compare logswhile tuninganECU

• CompatiblewithallG4basedECUs

• Themostcomprehensive, integratedECUtuningand loggingsoftware

• Windows(XP,Vistaand7)

• MouseorKeyboarddriven

• Fullyconfigurablemulti-pagelayout

• Largenumberofdifferent“views”fordisplayingECUandlogdata

• Advancedtimesavingtuningfeaturesandshortcuts

• Singlekeyaccesstoallcriticalruntimevalues

ECUConfiguration• LogicallyorganisedtreestylenavigationofECU

settings

• Comprehensive context sensitive help for allfeatures

Tuning• Popoutsettingsmenusavesscreenspace

• Interactive3Dsurfacegraph

• Multipletabledisplay

• Configurablegauges,plottingandruntimevalues

• WarningsandStatusinformation

• Allruntimedisplaysautomaticallychangedbasedon selected table

G4XtremeTechnicalSpecificationsFueling• Upto440ZoneFuelTablewithconfigurablerow

andcolumncentres.ConfigurableXandYAxisParameters

• MultipleFuelTables,internallyorexternallyswitchable

• Upto6DFuelMapping• AFRTargetTable• IndividualCylinderFuelCorrection(3Dorsingle

cell)• InjectionRate• MasterEnrichment• StagedInjection• PreCrankPrime• CrankEnrichment• PostStartEnrichment• WarmUpEnrichment• AccelerationEnrichment• IATFuelCorrection• InjectorDeadtimeCompensation• OverrunFuelCut• IdleLoadTrims• FuelTemperatureCorrection

Ignition• Upto440ZoneIgnitionTablewithconfigurable

rowandcolumncentres.ConfigurableXandYAxisParameters

• DualInputClosedLoopKnockControl.• CrankDwellExtension• MaximumAdvance• Beginning/EndInjectionDefinable• 3DDwellTimeTable.ConfigurableXandYAxis

Parameters• MultipleIgnitionTables-internallyorexternally

switchable• Upto6DIgnitionMapping• IndividualCylinderIgnitionTrim• IATTrim• DwellVoltageCorrection• ECTTrim• OEMCompatibility-supportforalmostallfactory

and after-market igniters• CDICompatibility

Limits• EngineTemperatureDependentProgressiveRPM

Limiting• EngineTemperatureDependentProgressiveBoost

Limiting• VehicleSpeedLimit• SystemVoltageLimit• UserConfigurableRPMLimitbasedonexternal

input• GeneralPurposeLimits

Triggering• DigitalTriggerDecoding• Reluctor,Optical,ProximityorHallSensors• Programmablefilteringandarmingthresholds• Configurabletriggerpatternsorpresettriggering

options.• SupportsmostOEMtriggerpatternsandcustom

trigger arrangements

MotorsportFeatures• AntilagGroupA/GroupN• Launch2-stepControl• FlatShifting

AuxiliaryOutputOptions• EachOutputindependentlyconfigurable• Unusedignitionandinjectionoutputsavailableas

auxiliaryoutputs• GeneralPurposeOutput-combinationof

conditions• GeneralPurposePWM-combinationofconditions

plus3Dtable• ContinuouslyVariableValveTimingControl• ClosedLoopIdleSpeedControl(Solenoidor

Stepper(4&6Terminal))• FuelPump• FuelPumpSpeedControl• EngineFan• AirConClutch• AirConFan• IntercoolerSpray• Tacho• CheckEngineLight• PurgeSolenoid• OxygenSensorHeater• SwitchedCamSolenoid

VariableValveTiming• Upto4channelindependent• PrecisionClosedLoopControl• 3DTargetTableswithconfigurableXandYaxis

controls• PresetorCustomConfiguration• SupportedEngines-1UZFEVVTi;SubaruAVCS;

EVO9VVT;BMWVANOS;Toyota3SGE,1ZZ,IJZ,2NZ,2JZ;HondaK20;NissanVQ35;FordV8;HoldenV6;plusmorebeingaddedeveryweek

Processing• 40MHzSpecialisedEngineManagement

Microprocessor• Ignitioncontrolto0.1degree,fuelto0.01ms• 32BitCalculation• 10BitADCResolution• 20000+RPM• 4MbNonVolatileFlash

Inputs/Output• 8highcurrentInjectorDrives• 8IgnitionChannels• AuxiliaryOutputs• 10DigitalInputs• +5VOut• +8VOut• 4TemperatureInputs• 110-5VAnalogInputs• 2TriggerInputs(Reluctor,OpticalorHallSensors)• OnBoardBaroCorrection(RealTime)• 2KnockInputs

DigitalInputs

Diagnostics• ECUStatisticsMemory

(maxrpm,boost,etc.)

Communications• TuningPortUSBonboard• SerialRS232• CAN

AnalogInputs• Eachchannelindependentlyconfigurablewithpreset

or custom calibrations• WidebandO2(fromexternalcontroller)• BoostAdjustDial• ConfigurableFaultDetectionSettings• Voltage(0-5V)• Pyro(fromexternalcontroller)• ThrottlePosition• Pressure(generalpurpose,fuel,oil)• MassAirFlowMeter• MAP• Temperature(coolant,IAT,generalpurpose)• ThrottlePosition• NarrowBandO2

BoostControl• EngineTempCorrection• IATCorrection• MultipleBoostTables• ExternalAdjustment• GearCorrection• ECTCorrection

IdleControl• ReliableandstableuserconfigurableClosedLoop

Control• SolenoidorStepperMotorISCValve(2/3wire

solenoid,4/6terminalstepper)• Aircon,EngineFanorPowerSteeridleup• OpenLoopControlModefordiagnostics

Environment• InternalTemperatureRange-10-85oC• AmbientTemperatureRange-30-90oC• Voltage8-22V• OperatingCurrent200mA• Electricalprotectiononallinputsandoutputs

PCLink• AdjustALLparametersinrealtime• Mouseorkeyboardoperation• Tuning• QuickTune-automatedfuelselftuning• DataLoggingAnalysis• DiagnosticInformation• ComprehensiveOn-LineHelpforallTuning

Functions• DefinableScreenLayouts• Viewover300possibleruntimeparameters

Physical• Length:167mm• Width:126mm• Height:42mm• Weight:xgrams• Connector:2x34PinWaterproofAutomotive

PackageContents• XtremeG4ECU• 2x2.5MetreWiringHarness(loomA&B)• MountingBracketsandScrews• WiringandInstallationInstructions

Additional Accessories (PurchasedSeparately)• IntakeAirTemperatureSensor• 3/8NPT• Boschpushin• 14mm(AluminiumorSteelMountingBossesto

suit)• ThrottlePositionSensor• 1,2or3ChannelLinkIgniter• NarrowbandOxygenSensor• WidebandO2Controller&Sensor• MAPSensors• 2.5barabsolute(1.5barboost)• 5barabsolute(4barboost)

ManufacturingStandard• ISO13485

EngineConfigurationsSupportedEngineConfigurationsforG4Xtreme,G4Storm&G4Atom

Sequential GroupStaged

SequentialGroup

SequentialDirectSpark

WastedSpark

Distributed

2 Cyl ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔

3 Cyl ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔

4 Cyl ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔

5 Cyl ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔

6 Cyl ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔

8 Cyl ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔

10 Cyl ✔ ✔ ✔ ✔ ✔ ✔ ✔

12 Cyl ✔ ✔ ✔ ✔ ✔ ✔ ✔

2 Rotor ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔

3 Rotor ✔ ✔ ✔ ✔ ✔

4 Rotor ✔ ✔ ✔ ✔ ✔

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G4 Xtreme and Storm / Atom Supported Engine Configurations

EngineInjection Ignition

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Link Engine Management

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