datalog analysis - Torque Metrics

Knock Sensor False Positives: Why You’re Losing 20+ HP to Bad Data

Most tuners pull timing at the first sign of knock sensor activity, but modern sensors trigger from exhaust noise, fuel slosh, and A/C compressors. You're losing 20+ horsepower to false positives that aren't actual detonation.

Why 40% of Stage 2 WRX Builds Actually Lose Power

Analysis of 200+ Stage 2 WRX dyno sheets reveals a shocking truth: 40% actually lose power compared to baseline. The culprit isn't bad parts or poor tuning — it's knock sensor data that owners consistently ignore.

How to Find the 370Z Hidden Timing Window for 25HP Gains

370Z owners are discovering a timing advance window between 2500-4500 RPM where the factory ECU pulls back too conservatively. Adding 2-3 degrees here safely unlocks 25 hidden horsepower most tuners miss completely.

How to Diagnose SR20DET Boost Creep Before It Grenades Your Engine

That flutter sound you think is normal could be your SR20DET's wastegate failing, leading to boost creep that destroys engines. Here's how to diagnose it before you're buying a new motor.

OTS Maps vs Custom Tunes: What the Real Data Shows

We analyzed identical FA24 setups running OTS maps versus custom tunes to settle the debate once and for all. The data reveals exactly why AFR consistency matters more than peak numbers.

WRX Knock Sensor False Positives: Why Your Stage 2+ Build Loses Power

Stage 2+ WRX builds suffer false knock detection from intercooler piping vibration, injector noise, and valve train harmonics. These phantom knock events pull timing unnecessarily, costing real power.

VQ37 Factory ECU vs Standalone: When to Spend the $3000

The factory VQ37 ECU handles 500+ wheel horsepower without breaking a sweat. That $3000 standalone makes sense for race builds, but most street cars are paying premium for features they'll never use.

Why Identical Miata Turbo Kits Make 170-220hp: Hidden Variables

Two identical Miata turbo setups can vary by 50hp despite using the same kit and tune. Factory compression ratios, engine tolerances, and hidden fueling variables create this frustrating power spread.

Why E85 Rich Spikes Kill Engines (Not Lean AFRs)

Everyone fears lean AFRs on E85, but the real engine killer is rich transients during fuel transitions. Those 12.5-13.5 AFR spikes wash cylinder walls and destroy ring seal faster than any lean condition.

How to Tell if WRX Boost Creep is Hardware or Tune Issues

Boost creep diagnosis on Stage 2+ WRXs comes down to three critical datalog parameters that most owners check in the wrong order. Here's how to read your logs to identify the real culprit before you start throwing parts at the problem.

E85 Injector Sizing for Supra: Why 85% Duty Cycle Matters

E85 injector sizing isn't about maximum flow capacity. Most Supra owners oversize by 30-40%, which destroys atomization and makes tuning a nightmare.

Do Aftermarket Boost Controllers Actually Improve STI Response?

Stock STI boost control overshoots target pressure by 2-4 PSI during gear changes, creating hidden stress on internals. Aftermarket controllers maintain precise target pressure, eliminating these damaging spikes.

Tuning Knowledge
& Insights

Articles for: datalog analysis

Knock Sensor False Positives: Why You’re Losing 20+ HP to Bad Data

Why 40% of Stage 2 WRX Builds Actually Lose Power

How to Find the 370Z Hidden Timing Window for 25HP Gains

How to Diagnose SR20DET Boost Creep Before It Grenades Your Engine

OTS Maps vs Custom Tunes: What the Real Data Shows

WRX Knock Sensor False Positives: Why Your Stage 2+ Build Loses Power

VQ37 Factory ECU vs Standalone: When to Spend the $3000

Why Identical Miata Turbo Kits Make 170-220hp: Hidden Variables

Why E85 Rich Spikes Kill Engines (Not Lean AFRs)

How to Tell if WRX Boost Creep is Hardware or Tune Issues

E85 Injector Sizing for Supra: Why 85% Duty Cycle Matters

Do Aftermarket Boost Controllers Actually Improve STI Response?

Tuning Knowledge & Insights

Articles for: datalog analysis

Tuning Knowledge
& Insights