Small, but mighty! 


The Link G4X AtomX ECU is the latest version of our entry-level ECU. Don't let its size fool you however, the AtomX has expanded data logging and uses the same microcontroller as the entire G4X range! It is more responsive and has higher bandwidth than its G4+ Atom II predecessor. 


G4X features 512 megabytes of logging at 32bit using up to 250 channels, each limited to up to 1kHz per channel (by the Operating System), with a maximum of 100 kSamples/sec.


G4X features 8 x faster communications speed, allowing you to download logs 8 x faster and pushes all the logging quickly up to a new and improved PCLink – available for download below in the features tab. 


The AtomX can control up to 2 rotors or 4 cylinders with sequential injection and direct spark. This makes it ideal for naturally aspirated engines that just need a re-tune and don't need all the extra sensors and features that come with our higher level ECUs. 



Requires "A" loom.

LINK - G4X Atom X

  • 1-12 Cylinder Distributed

    2-8 Cylinder Wasted Spark

    1-4 Cylinder Direct Spark

    Odd Fire Engines

    2-Stroke Engines

    Configurable Firing Order

    Configurable TDC Points (for odd fire)




    2 x Digital inputs

    2 x Temperature inputs

    3 x Analog inputs

    2 x Trigger inputs



    4 x Injector drives

    4 x Ignition drivers

    4 x Auxiliary outputs^

    +5V Sensor power supply

    ^unused ignition drives can be used as additional Aux



    1x CAN bus

    1x USB tuning connection

    1 x thirty four pin, waterproof connector

    Upgraded Communications Chip



    Comes loaded with all of Link ECU's standard features.

    512MB of logging memory

    20 general purpose tables

    Runs on PC Link software for G4X



    Dimensions: 90mmL x 130mmW x 45mmH (without loom)

    Weight: 180 grams


    What's in the box:

    The AtomX ECU is supplied with a USB tuning cable, mounting bracket and four Link ECU stickers. 

25911 104th Ave SE Kent, WA 98030

Contact: 253.872.0872

Fax: 253.872.0778

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