Why Your Intercooler Loses 40hp After Three Pulls (GTI/Si Data)
Your intercooler hit 380hp on the first dyno pull, but dropped to 340hp by the third. Heat soak isn't just losing power, it's killing consistency when you actually need it.
How to Find Boost Leaks Before Tuning: DIY Testing Guide
A simple boost leak can cost you 50hp and trigger false knock readings that send your tuning session sideways. Here's the systematic approach professionals use to find every leak before touching the tune.
Why Two Identical Supra A90s Show 50hp Difference Same Mods
When two identical A90 Supras with the same intercooler upgrade dyno 50hp apart, your IAT sensors hold the answer. Peak power numbers miss the thermal efficiency story hiding in your datalogs.
Engine Swap Weight: Why Your 400hp Build Corners Like a Truck
That 2JZ swap delivers 400hp but adds 200 pounds over the front axle, killing your car's cornering balance. Here's why weight distribution matters more than peak power for real-world performance.