Development Log
Walkthrough of using open-source tools and AI-trained maps to safely increase EJ205 performance.
View Telemetry →Managing MAF sensor scaling and airflow smoothing for short-ram intake configurations.
View Scaling →Tracking leak sources and upgrading to high-temp Viton seals for long-term reliability.
View Guide →Interpreting WOT, Knock, and Timing values to identify safe vs. risky operating thresholds.
View Log Analysis →Development
💡 How I Tuned My WRX With ECUFlash – AI & No Pro-Tune
Walkthrough of using open-source tools and AI-trained maps to safely increase performance.
🌀 Cold Air Intake Workaround for the EJ205
How to handle MAF sensor scaling and airflow smoothing for short-ram setups.
🧰 DIY WRX Hose & Vacuum Line Replacement Checklist
Visual guide + part numbers for all major lines, including PCV, coolant, and turbo vacuum.
🚧 Diagnosing and Fixing Oil Cooler Leaks
How I tracked down the cause of the leak and replaced the OEM O-ring with high-temp Viton.
🔧 Planning a VF48 Turbo Upgrade Safely for Street Use
Boost target strategy, injector math, and how to avoid over-tuning your street setup.
📟 Logging with RomRaider: WOT, Knock, and Timing
Which parameters to log and how to interpret safe vs risky values for the EJ205.
🧪 How I Set Knock Retard Limits – Stage 1 Tuning Tactics
Defensive tuning values for long-term reliability under daily driving + heat stress.
📈 Comparing WGDC Maps: Stock vs Custom
A visual map overlay of stock wastega