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912 ULS x 912iS exchange

in 912iS Technical Questions 7 years ago
Dear All,
I´m willing to replace my 912 ULS with a 912iS.
Want to know what changes in the engine monitoring instruments and probes must be done to have compatibility with the iS engine?
I have a TL-3724 EMS from TL Electronics installed.

  • Re: 912 ULS x 912iS exchange

    by » 7 years ago

    The 912is is a computer operated engine.
    Very similar to the what you have in any car made in the last 30 years.

    All data from the engine comes out of the ECM on a 2 wire CAN Bus.
    The CAN Bus carries the Tachometer, Oil Pressure, Oil Temperature, Fuel Flow Rate, CHT, EGT, MAP, MAT, AAP, AAT, and more.
    There are no places to connect conventional instruments to the engine.
    It appears that the TL-3724 is not compatible.
    You will need a Dynon, MGL, etc type display to monitor the engine.
    The TL-6724 will give you the basics.
    For a little more the TL-6624 will give you a full panel.

    The 912is is a different animal. Welcome to the 21st century!

    Bill Hertzel
    Rotax 912is
    North Ridgeville, OH, USA
    Clicking the "Thank You" is Always Appreciated by Everyone.

      
    Report

  • Re: 912 ULS x 912iS exchange

    by » 7 years ago

    They really aren't interchangeable. Totally different firewall forward and instrumentation. It would take some extensive engineering to swap a ULS to an iS.

    Like Bill said. Different animals.

    Roger Lee
    LSRM-A & Rotax Instructor & Rotax IRC
    Tucson, AZ Ryan Airfield (KRYN)
    520-349-7056 Cell

      
    Report
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