G4 RX - Rotary Engine Management
Overview
The G4 RX is the result of feedback from our tuners, dealers, and you, our customers. This is what we heard:
-
Pre mix sucks
- The G4 RX ECU can control the factory oil injection pump
- Need a big MAP sensor
- A 4 bar MAP sensor for mapping to 3 bar of boost is standard on the G4 RX
- Want to be able to run the standard injectors or Bosch / Siemens aftermarket
- Peak and Hold, 4 Amp injector drivers lets you choose any injector - factory or after-market
- Its got to look good when installed
- Bolt the supplied mounting bracket into a highly visible location then clip the G4 RX in, no bolts etc. will show
- Tough black enclosure with stunning graphics
- Integrated communication connectors for USB and Coms
- All inputs/outputs are at one end of the ECU
- I won't use cheap connectors
- Professional, waterproof AMP connector
- Flexible "thin-wall" wiring
- E-throttle option for new project builds
- Of course, add the E-Throttle module
- I run serious engines, I need individual rotor tuning
- Done, if you are serious this ECU will stun you
- Need 2 tunes at the flick of a switch, one for street, one for race fuel
- Just add the switch
- Smart limiting so that we can hold on the line without damage
- We believe that no other ECU can compare with our limiting features
- I don't want a cut down ECU. I want it all
- The G4 RX is fully featured
- Why should I put up with the hesitation when the injectors stage?
- You shouldn't and you won't with Link G4 ECUs
The G4 RX delivers performance that rivals any engine management system on the market. This RX ECU is more than capable of running sequential injection and ignition.
The G4 RX offers all of the advanced G4 tuning features at an extremely competitive price.
New
On Board Data Logging
The latest G4 firmware version enables the ECUs on board data logging functionality. On board data logging is an essential feature for tuning and motorsport diagnostics. On board data logging allows ECU information to be recorded directly to memory inside the ECU. Recorded information can be retrieved for analysis at a later stage.
All G4 ECU's are built with 32Mbit flash memory fitted. This is significantly more data logging memory than competitors' ECUs. The ECU can be configured to record a large number of parameters at various rates. High capacity memory allows for recording of approximately 100 parameters at a rate of 50 times per second for nearly 14 minutes. Slower rates allow for over 11 hours recording time.
The ECU can be configured to start recording when an external switch is turned on or based on some internal condition. Log files are independently recorded and can be retrieved without downloading the entire ECU memory.
QuickTune
Using PCLink, QuickTune is an interactive tuning tool that assists in time efficient fuel tuning. A graphical display of Target AFR (desired AFR) and Actual AFR (measured AFR) is provided. A dual pointer gauge allows the tuner to quickly see how close Actual AFR is to the Target AFR. QuickTune can be setup to operate over the entire fuel table or just over a particular area.
QuickTune can be used in Manual or Automatic modes. In Manual mode, QuickTune guides you to cell centering and advises you when is a suitable time to make a fuel table adjustment. With the press of a key a calculated adjustment is made. Often only one or two adjustments are required to tune each cell. In Automatic mode QuickTune does all the adjustments for you. This leaves the tuner free to operate the Dyno or perform other tuning work such as making ignition or cam angle adjustments.
Features
- Two rotors, fully sequentially staged injection and sequential ignition
- Four peak and hold individually configurable injection drives
- Four ignition outputs
- Staged injection
- 4 bar MAP sensor on board (up to 7 bar externally)
- 19 additional input/outputs (others have 12 or less)
- E-throttle capability with additional hardware
- Individual rotor fuel & ignition trims
- Rotary specific, super smooth RPM limits
- Oil metering pump control (no more pre-mix)
- Dual fuel / ignition tables
- Conditional limiting e.g. oil pressure
Up to 6D fuel and ignition mapping- Sequential fuel and ignition delivery
- Digital triggering, all OEM patterns
- OEM idle hardware supported
- 6D boost control with three switchable tables
- Selectable boost per gear
- Motorsport features - launch control, flat shifting
- Continuous barometric correction (on board)
- CAN port
- QuickTune - automated fuel tuning
- Stats recording into on-board memory
- Knock with “windowing” using additional G4 KnockBlock
- Sync and crank sensors can be a combination of Hall effect, variable reluctance or optical
- 4Mb internal logging memory
- “Firmware” updates via linkecu.com
- USB tuning cable included
- USB to Link CAN cable
- Mounting bracket included
- Waterproof connectors (submersible option)
Specification
GeneralAdjustable X and Y axis parameters on all 3D tablesAdjustable zone centers on all 3D tables Custom top dead centers (odd fire) Adjustable baud rate Adjustable firing order Various datastream outputs |
TriggeringReluctance, optical, proximity or hall effect sensorsProgrammable filters Programmable arming thresholds Configurable trigger patterns Preset trigger patterns Supports many OEM applications |
Launch ControlProgressive cut controlSelectable fuel or ignition limiting Selectable cut effect (adaptive or constant) Adjustable control range Vehicle speed controlled Clutch switch controlled Launch fuel trim (3D) Launch ignition trim (3D) |
Power Supplies5V output8V output |
Calculated InputsGear positionWheel slip |
ECU LoggingVarious activation methodsAdjustable logging rate 4MB Onboard Logging Log analysis with PCLink |
FuelPeak and Hold injector control4 Injector drives Sequential injection Mode Grouped injection mode Staged injection mode Single point injection mode 5A maximum saturated current 5A auxiliary current Sequential, grouped, staged and single point fueling Quick tune (automated fuel tuning) Multiple fuel equations Barometric pressure compensation Multiple switched fuel tables Multiple overlayed fuel tables AFR target table Individual rotor fuel trims (3D) Staged injection Pre-crank prime (2D) Crank enrichment (2D) Post start enrichment (2D) Warm up enrichment (3D) Acceleration enrichment (3D) Air temperature correction (3D) Injector deadtime voltage correction (3D) Overrun fuel cut (2D) Fuel temperature correction Idle load trims Master fuel adjustment Injector test function Injection angle adjustment (3D) Narrowband closed loop lambda Wideband closed loop lambda |
Ignition4 Ignition drives1, 2 Rotor Leading Wasted/Leading Direct Modes 2 Rotary wasted leading spark, direct trailing spark 2 Rotary direct leading spark, direct trailing spark 7V squarewave drive signal 2.2A auxiliary current Adjustable dwell mode Dwell control (3D) Engine temperature trim (3D) Inlet air temperature trim (3D) Multiple switched ignition tables Multiple overlayed ignition tables Individual rotor ignition trims (3D) Transient ignition retard LimitsRPM limit (engine temperature controlled)Boost limit (engine temperature controlled) Speed limit (set or switchable) Dual general purpose limits (e.g. oil pressure) Overvoltage limit Optional hard cut Progressive cut control Selectable fuel or ignition limiting Ignition trim Adjustable control range Selectable cut effect (adaptive or constant) |
Auxiliary Outputs8 Auxiliary Outputs8 Lowside outputs 4 Highside outputs 2.2 Normal lowside current limit (A) 5 Normal highside current limit (A) Unused fuel drives can be used as outputs Unused ignition drives can be used as outputs Test mode (PWM or ON/OFF) Idle speed control solenoid Boost control solenoid General purpose PWM (3D) General purpose switched (conditional) Fuel pump Fuel pump speed Engine fan Air-con fan Air-con clutch Intercooler water spray Tacho Check engine light Purge solenoid VVT solenoid Hold power relay Speedo signal E-throttle relay Oxy heater Inlet runner control solenoid Tumble generation valve Virtual auxiliary channels x3 Stepper motor control (4 wire / bi-polar) Stepper Motor Control (6 Wire / Unipolar) |
Analog Inputs4 voltage inputs2 temperature inputs Onboard 4.0bar manifold pressure sensor Engine coolant temperature Inlet air temperature Fuel temperature Engine oil temperature Gearbox oil temperature Diff oil temperature Mass air flow sensor air temperature General purpose temperature Manifold pressure sensor Mass air flow sensor Throttle position sensor Foot position sensor Wideband lamba signal General purpose voltage General purpose input Oil pressure Fuel pressure General purpose pressure Exhaust gas temperaturel (from external controller) Knock 5V signal (from external controller) Narrow band 02 sensor Rotary oil metering pump position Tumble generation valve postion Stepper motor position Crankcase pressure Damper position Configurable calibration tables Configurable fault settings Voltage channels can measure temperature with external resistor Internal barometric pressure sensor ECU temperature |
Digital Inputs4 inputs (total)General purpose switch 4 General purpose frequency 1.6V rising trigger 1.0V falling trigger Vehicle speed Air-con request Intercooler water spray request Anti-theft request Power steering pressure switch Neutral switch Throttle closed switch Speed limit request Gear shift cut request Start position switch Clutch switch Brake switch Turbo RPM Digital mass airflow sensor Various wheel and shaft speeds Seimens E85 sensor Anti-lag SystemVarious activation modesFuel enrichment (3D) Ignition cut (3D) Ignition retard (3D) Cyclic idle (normal and cool-down) Dual enrichment, cut and retard tables Idle speed solenoid overide Safety timeout |
Gear Cut ControlTimed or controlled modesAdjustable progressive cut levels Power re-introduction control Ignition retard control Fuel enrichment control Cut duration based on gear Idle Speed ControlClosed loop and open loop modesStepper motor control (4 wire / bi-polar) Stepper Motor Control (6 Wire / Unipolar) Solenoid control Electronic throttle control Idle up tables Electronic ThrottleExternal E-ThrottleIdle speed control Comprehensive safety features Automated setup Supports OEM applications Multiple throttle position target tables Supports anti-lag Boost ControlOpen loop controlMultiple tables (3D) Engine temperature trim Inlet air temperature trim Gear based trim External adjustment (high/low switch) |
Knock ControlRequires External ModuleAdjustable frequency Adjustable gain (per cylinder) Individual rotor detection Individual rotor ignition retard Adjustable detection angle (start/end) Noise threshold table (3D) Adjustable ignition retard sensitivity Configurable ignition reintroduction DiagnosticsECU Statistics |
Tuning SoftwareConfigurable panelsSurface plotting Password protection Error logging Multiple gauges Keyboard support Time plot XY plot Histogram Multiple pages Parameter search function Context sensitive help browser Firmware updater Fault code display PC logging Runtime values dialog Full wiring manual Full tuning manual Full software operation manual |
|
ManufacturingComprehensive testingISO 13485 Made in New Zealand |
PhysicalLength 135 mmWidth 126 mm Height 42 mm ECU Weight 570 grams 34 Way Connector waterproof automotive |
Package ContentsG4 ECU2.5m AVSS Wiring Harness Mounting Bracket Quick Start Guide Package Weight Total 1840 grams |
Operation (was environment)Operating temperature range -10 to 85 deg CAmbient temperature range -30 to 90 deg C Input Voltage 8 to 22V Power Consumption 220 mA Electrical Protection on inputs and outputs Mil Spec acrylic coating on PCB and components 40 MHz dedicated automotive engine management microprocessor |
Software
PCLink
is a ‘Windows’ application that enables the user to tune and monitor
Link Engine Management systems using a laptop or PC.
This laptop tuning enables the user to view and alter all functions of
the Link system in real time. Help is available on screen, as well as
step-by-step introductory tutorials, allowing familiarisation with the
PCLink software before tuning of the engine. PCLink
enables the user to view and alter all functions of their Link Engine
Management System in real time (while the engine is running).
The programme may be controlled using either the keyboard (quick-keys) or mouse. Online help is available via the Windows help system and all the information is contained within PCLink as well as step by step introductory tutorials. There is no need to carry an instruction book as it is all within your laptop once PCLink is installed. The introductory tutorials allow the user to become familiar with the PCLink software before tuning their engine. PCLink and tutorials are available for download from this website.
PCLink Features:
- User friendly interface to Link Engine Management Systems
simplifies tuning and diagnostics
- View the entire fuel or
ignition map as a table with crosshairs to
accurately pinpoint the engine parameters*
- Advanced time saving table editing features such as interpolate, percentage adjust, fill and import/export
- Serial or USB Connection to Link Engine Management Systems
- Access and adjust all Link Engine Management System features in real time* (while the engine is running)
- Upload, download, save and print configurations
- Attach tuning notes to individual configurations
- View all run-time information as lists or on screen gauges
- Datalog and plot run-time information in real time. Logs can be saved for later analysis.
- Edit all tables/maps (fuel, ignition, boost etc...) and view as a standard table, 2-D graph or 3-D surface
*important features that differentiate PCLink from competitors software
Accessories
The G4 RX standard kit includes:
- G4 RX ECU
- 2.5m wiring loom
- ECU mounting kit
- Wiring and installation instructions
- Inlet Air Temperature Sensor (highly recommended)
- Igniters
- Ballast Resistors
- Wide band O2 Sensors
DisplayLink
“Full Information at your Fingertips”
Plug in and go, real time driver display. Users love the DisplayLink due to its ease of use, fascinating insight into what is happening with the engine and the fact that they can’t “mess up the ECU”.
Connect the DisplayLink, it works out of the box. Select what you need to see, the DisplayLink provides the instrumentation and information desired, both while the engine is running and subsequently from the internal memory.
All settings, menus and information are accessible using the five built-in buttons. Warnings are activated if inputs go out of range, a built in warning light alerts the driver and the condition presented graphically (even in direct sunlight).
More information on the DisplayLink
