Motec m142 ecu on a mazdaspeed?

Discussion in 'Mazdaspeed 3 Build Diaries' started by Atvfreek, Oct 3, 2019.

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  1. _Mazdarati

    _Mazdarati Silver Member

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    It would be impossible to squeeze out DI headroom as the limitation is a characteristic of the injector itself, nothing software related. It has tables to rev to the moon as far as I know and possibly has the ability to do a true flex fuel, but that would be a question for him.

    Plus, you can just delete SWAS with unplugging the sensor, or you can get creative and put a switch inline with it.
     
    _Mazdarati, via a mobile device, Oct 9, 2019
    #21
  2. Mauro_Penguin

    Mauro_Penguin Punk in Drublic Motorhead Platinum Member

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    No clue, I'm just really hopeful that there is a friggin genie in that little black box that will grant me wishes.
     
    Mauro_Penguin, via a mobile device, Oct 9, 2019
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  3. Mauro_Penguin

    Mauro_Penguin Punk in Drublic Motorhead Platinum Member

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    I'm aware. I have a switch already. A software fix that actually works would be nice for reasons....
     
    Mauro_Penguin, via a mobile device, Oct 9, 2019
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  4. Easter Bunny

    Easter Bunny Professional Engineer Silver Member

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    Unplugging swas in a pu also turns off the power steering
     
    Easter Bunny, via a mobile device, Oct 9, 2019
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  5. Enki

    Enki Motorhead Platinum Member

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    If my understanding of how our cars operate the injectors is correct, there's no way to get around the limitations of spark and cam timing and thus, most people shouldn't be going over a measured 100% IDC for that reason. People with aftermarket cams that have a later close time are even worse off than those with stock cams.
     
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  6. Lumberjack

    Lumberjack Greenie N00B Member

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    You can run just about any sensor you can imagine with the M142, your only limitation will be how many due to the spare inputs/outputs available to you.

    99% of setups on this platform wont make efficient power to 9k rpm anyways, even with my setup and Justin's power still starts tapering and falling off around 8500 give or take.

    You can control anything you want, 5/6th port, PI, nitrous, traction control, rolling anti lag etc.
     
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  7. Enki

    Enki Motorhead Platinum Member

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    1% reporting in.
    If you really want RPM you need to do a lot to make it feasible.

    Edit:
    With more money you can go even higher, but you'd probably have to get rid of DI altogether to get there. I don't think the HPFP can reliably handle much more than I'm already hitting (12.3k Hz) but stock internals would help.
     
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  8. Mauro_Penguin

    Mauro_Penguin Punk in Drublic Motorhead Platinum Member

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    @Lumberjack

    So with such high possibilities with this unit, what would a shop tune for such a detailed system run? Just asking for ballpark, I'm not holding any to this since I'm sure tuning these things will require more time than what Cobb or Versatune offer.
     
    Mauro_Penguin, via a mobile device, Oct 21, 2019
    #28

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