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Copyright © 2026 - All right reserved

v4.0.0 | June 21, 2026

Made with ❤️ by TryphonX
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CmsTuningCalculator

Introducing CmsTuningCalculator – your go-to utility app for optimizing engine tuning in Car Mechanic Simulator.

Tackling the often laborious task of filtering parts eligible for tuning, this app streamlines the process, saving you valuable time. Powered by a comprehensive database of parts, you get instant access to vital information like cost, performance boost, and the cost-to-boost ratio.

"Database" is doing a lot of heavy lifting here; it's a bunch of JSON files that I've painstakingly curated and cross-referenced to ensure accuracy. If you find any discrepancies, please report them via the GitHub link below.

This app is a personal project and is not associated with the makers and/or publishers of the game in any way shape or form.

Don't go through the effort of running any of this text through ai detectors; I was lazy.

This project is open-source. Licensed under GNU GENERAL PUBLIC LICENSE v3.

How it works

To maintain mechanical realism, the app only presents complete solutions (ensuring matching parts are either tuned everywhere on the engine or not at all). You can approach your build in two ways:

Manual Build

Hand-pick your performance parts one by one to experiment with custom builds while tracking your real-time performance metrics and efficiency ratios.

  • Filter parts by Engine
  • Live preview of your build
  • Clear your build anytime
  • Save time and CR

Auto-Generated Setup

Input your desired boost percentage and specify any parts you already need to replace. The app will calculate the absolute most cost-effective combination, factoring in whether it's cheaper to outright upgrade a part rather than replacing it with stock.

  • Filter parts by Engine
  • Live preview of your build
  • Clear your build anytime
  • Save time and CR
  • Get the most cost-effective realistic setup
  • Near-instant calculations for any build
  • Get as close to the target boost as possible
  • Minimize cost-to-boost ratio
  • Include upgrades for parts that are going to be replaced anyway into the calculations
  • Comprehensive report of what you've gained with the replacement parts, if any

Say goodbye to guesswork and hello to precision tuning

Contributors

  • TryphonX's avatar
    Tryfon XydasCreator
    TryphonX
  • joshbarrass's avatar
    Joshua Barrass
    joshbarrass