Mitsubishi M32R / SH72531 Tuning Guide & Table Definitions (PDF)

A professional, in-depth tuning reference created to properly define and explain Mitsubishi M32R and SH72531 ECU tables. This guide focuses on correct table usage, real ECU logic, and clearing up years of misinformation found across forums and incomplete definitions. It's an essential resource for serious tuners.

• Detailed explanations of fuel, ignition, airflow, throttle, and ECU logic tables – Understand each parameter thoroughly.
• Covers Closed Loop / Open Loop behavior, interpolations, and load-based transitions – Master ECU operations.
• Pros & Cons breakdown for each table to prevent incorrect tuning decisions – Make informed choices.
• Injector scaling, latency compensation, fuel pump control, limp modes, and more – Comprehensive coverage.
• M32R (Renesas) and SH72531 (SuperH) architecture explanations – Technical insights.
• Designed for real-world calibration, ROM analysis, and ECU reverse engineering – Practical applications.

This guide does not tune your vehicle for you — it teaches you what each table actually does, how the ECU uses it, and when (or when not) to modify it. Updated with latest insights for 2026.

$15 USD

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Spark Cut Patch Builder Guide (PDF)

Step-by-step guide showing tuners how to build their own spark cut patches for any M32R ROM. Covers 4B10 / 4B11 / 4B12 / 4B11T with detailed pictures, examples, and explanations so you can patch confidently without guessing. Digital PDF is sent manually to your login email after payment. Updated with new examples for better clarity.

$45 USD