Why Your Knock Sensor Data Doesn’t Match How E85 vs 93 Feels
That smooth E85 pull that felt amazing? Your knock sensor logged 47 events and pulled 8 degrees of timing. Here's why your butt dyno lies when fuel economics drive octane choices.
Why Your First Spring Drive is Destroying Your Engine (Data)
That first warm spring drive feels amazing until you check your knock logs. Your ECU just recorded 47 knock events because last year's tune is fighting this year's atmospheric conditions.
Why Spring Temperature Changes Wreck STI Tunes (Data Analysis)
Temperature swings of just 20°C can shift your STI's knock threshold by 2-3 timing degrees, turning a safe winter tune into engine damage. Here's what your datalogs are actually telling you about seasonal temperature changes.
E85 Timing for 370Z: The Sweet Spot Most Owners Get Wrong
Most 370Z owners running E85 are leaving 15-20 wheel horsepower on the table with overly conservative timing advance. Our analysis of 50+ dyno runs shows the real sweet spot is higher than you think.
AccessPort vs Dyno Tune: What Your WRX AFR Data Really Shows
Peak power numbers lie. Your WRX's AFR consistency across the rev range tells the real story about tune quality.
Why Turbo Miatas Knock at 4500 RPM: Fixing the Timing Map
That predictable knock wall at 4500 RPM in your turbo Miata isn't random. Stock ignition timing maps assume naturally aspirated conditions, creating dangerous timing advance under boost.
Why Your Stage 2+ WRX Knocks Despite Conservative Tunes & Premium Fuel
That mysterious knock in your Stage 2+ WRX isn't your tune going bad or bad fuel—it's intercooler heat soak creating detonation conditions. Here's what your data logs are actually telling you.
WRX Knock Events After ECU Tunes: Real Data vs False Positives
That post-tune knock you're seeing might not be knock at all — most low-RPM events are just injector noise triggering oversensitive ECU parameters. Here's how to separate real knock from false positives using actual sensor data.