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Insights
How dyno testing, calibration and engine building actually work, written by the people who do it.
How to size injectors from target power and duty cycle, what the pump and regulator must deliver, how direct and port injection differ, and the real risks of E85.
How VTEC and VTC alter valve events, why runner length shapes the power band, and what a calibration must change when you swap to individual throttle bodies.
A bigger turbo is not a better turbo. How compressor maps, turbine A/R, wastegates and intercooling decide whether a turbo suits the way an engine will be used.
The K20A, K20Z, K20C and K24 share an architecture that builders keep returning to. Here is why, what limits each upgrade stage, and where a billet block fits.
How knock, detonation and pre-ignition differ, why they damage engines, how knock is detected, and why calibrators leave a safety margin rather than tune to the edge.
Three ways to change how an engine is controlled, compared plainly: what each can and cannot do, how complex it is, what drives cost and when each one makes sense.
How torque and power curves relate, why the area under the curve matters more than the peak figure, and the common ways a dyno chart can mislead the eye.
What an engine control unit actually controls, how a calibration map is built from tables and corrections, and what a careful, safe remapping process involves.
A hub dynamometer measures torque at the wheel hubs. Here is how that works, and why the same car can read differently on another dyno or on another day.
Every article is filed under the products, brands and cars it covers. Pick a topic to see everything we have written on it.
