Comparison of ECU Tuning Platforms for Mazda MX-5 NC: EcuTek vs. RomDrop

ECU tuning for the Mazda MX-5 NC can be performed using various tools. Among the most popular are EcuTek and RomDrop. Below, I compare these two solutions to help you decide which system suits your needs.


1. Costs and Availability

  • EcuTek
    A paid software platform that requires purchasing a license tied to a specific ECU. One significant limitation is that changing the ECU login locks access to the software.
  • RomDrop
    RomDrop is a free solution developed by Speeps (a user from the Miata.net forum). It requires no additional fees or licenses and imposes no locks on the ECU.

2. Versatility

  • EcuTek
    Supports multiple car models, making it a universal tuning tool.
  • RomDrop
    Dedicated exclusively to the Mazda MX-5 NC. It builds on Mazda's original software, preserving many factory protocols. However, due to the greater number of maps in the factory ECU compared to EcuTek, tuning with RomDrop can be slightly more challenging for beginners.

3. Opcje dla użytkownika

  • EcuTek
    Offers four banks of settngs, providing ample customization options for different driving conditions (road, racing, show, service)
  • RomDrop
    offers 2 sets of maps (zapłonu, paliwa oraz zmiennej fazy rozrządu), które można przełączać mędzy 0% a 100% co określony skok (od co 1% do co 100%). To proste, ale praktyczne rozwiązanie. Można mieć np. 2 mapy (0% to np. paliwo 95, 100% to 98) albo 2 z "opcją pośrodku" (0% paliwo 95 do codziennej jazdy, 100% agresywne wystrojenie na paliwie 98 albo 100 do krótkich sprintów, 50% pośrednia nastawa dla paliwa 98/100 ze zwiększonym marginesem bezpieczeństwa, przydatna podczas długiego obciążenia silnika np. na torze)

in both cases features are controlled by cruise buttons. Original cruse control function is still preserved


4. FlexFuel support/E85

  • EcuTek
    FlexFuel support via EcuTek is pending confirmation (as of November 2024).
  • RomDrop
    Supports FlexFuel/E85 using a Zeitronix sensor, enabling automatic adjustment of fuelng and spark advance based on ethanol content.

5. Boost control

  • EcuTek
    Allows boost control using the EVAP valve output, a convenient feature for boosted setups.
  • RomDrop
    Does not include boost control. An external controller e.g. LDPerformance, DET3is required. However tuning for boosted engines (fuel, ignition, etc.). is w pełni obsługiwane przez RomDrop'a

6. Additonal Features

  • EcuTek
    As part of its RaceRom package, includes revmatch/auto blipenhancing the driving experience for sports-oriented users.
  • RomDrop
    Currently (as of November 2024), it does not support revmatch or auto-blip functionality.

both EcuTek and RomDrop have launch-control and flat-shift options


In Summary

FunctionEcuTekRomDrop
Pricepaid, license to VIN number. Locked ECUno paid license, no ECU lock
Versatilitydifferent carsonly MX-5 NC
Map/Settngs4 banks2 sets, swtched by fixed %
FlexFuelto be confirmedyes, wth Zeitronix sensor
boost supportayesyes
boost controlyes, using EVAP outputNo. External controller needed (11.2024)
Revmatch/Auto BlipYesNo (11.2024)

a na koniec ... pamiętajcie że użyte narzędzie to tylko narzędzie. Ważne jest jak się nim posługujemy. Temat na kolejny artykuł 🙂

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