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Thread: Teensy 3.5 powered turbine FADEC for land speed record attempt

  1. #1

    Teensy 3.5 powered turbine FADEC for land speed record attempt

    As an offshoot of the work I've done with the Speeduino ECU, I've been working the last few months to adapt the project into a FADEC turbine controller rather than piston engine controller. This is for use in a turbine powered streamliner, Turbinator II, that is currently the fastest wheel driven vehicle with a 2 way average speed of 458MPH.

    It's been a bit of a mad scramble to get the hardware designed and tested, but the team is now at the point of being ready to run things in the car and will be heading to Bonnevile over the next week in the hope of breaking the 500MPH mark (Which it has done previously, but not with a return run).

    The unit is powered by a Teensy 3.5 and primarily controls the fueling for the turbine as well as managing the startup sequence and providing an array of engine protection functions.

    Forgive the terrible pics, but I keep forgetting to take any decent ones in the scramble

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    Bare units straight from PCBA

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    Board with connectors and Teensy mounted in enclosure

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    Unit being mounted in the car

    The hardware is pretty rough, but between crazy long manufacturing times due to IC shortages and a somewhat moving target in terms of requirements, I'm pretty happy with the outcome so far and everything appears to be functioning as expected. There's certainly a few quality of life things that can be added for future revisions, but this will do everything needed for this run.

    Hopefully things go as planned over the next 2 weeks, but either way I'll report back with how things go.

  2. #2
    Here's the car with things up and running today

  3. #3
    Well has been a week of mixed results with this project. Overall the electronics side of things worked pretty well. Some noise related issues that are likely wiring related, but overall the Teensy based turbine controller performed a treat.

    Unfortunately due to a number of issues on the car it wasn't able to make our test pass until the third and final day of World Finals at Bonneville. There wasn't time to make a full 5 mile pass as as there was too much that needed shakedown testing on the shorter 3 mile run first.But that run was very successful!

    The car was able to run the fastest 1st, 2nd and 3rd mile speeds in the history of Bonneville Land Speed Racing, which dates back to the 1920s.
    Some of the major data points:
    Peak GPS speed 447.9mph
    3 mile average of 420mph
    Fuel consumption peaked at 2100 pounds per hour, resulting in a shaft horsepower of 4185.

    All with an engine controlled by a Teensy 3.5

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  4. #4
    Senior Member
    Join Date
    May 2019
    Incredible!!! A teensy controlling 4185 horsepower ��

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