Natural Capacity percentage in injector sizing calculators is Volumetric Efficiency by another name. Here’s how to estimate it for a stock N/A engine going forced induction, and how boost changes the number.
Want to run your 6-cylinder as a five? Here’s what each approach actually does — from a quick ECU injector cut to a custom cam grind — and what breaks when you stop halfway.
Running two wideband O2 sensors—one per exhaust bank—gives you data a single post-merge sensor can’t. Here’s how bung placement, controllers, and wiring actually work.
Tuner consensus on the best wideband O2 controllers in 2026—AEM X-Series, Ballenger AFR500v3, 14Point7 Spartan 3, Innovate, PLX, and FuelTech compared.
