Porting Calculator V4.2.2 ((exclusive)) [ Official · 2026 ]

: Compare the intake, transfer, and exhaust mean area values. This ensures that the engine can intake enough air/fuel, transfer it effectively, and exhaust it without restriction.

: Includes a "raise barrel" control to simulate the effect of cylinder shims or base gaskets on timing, with adjustments down to 0.01mm increments. Porting Calculator V4.2.2

: Enter your engine's stroke and bore. The software sets limits for barrel height adjustments based on these parameters. : Compare the intake, transfer, and exhaust mean area values

: Features a CAD window where users can drag cursors to set port positions and widths, with real-time updates to mean area values. How to Use the Software : Enter your engine's stroke and bore

While earlier versions like Porting Calculator V4.2.1 laid the groundwork, V4.2.2 refines the user interface and calculation accuracy. The software is typically used by professional tuners on Windows-based systems, though mobile-friendly alternatives like Engine Tuning Calculator PRO offer similar 2-stroke and 4-stroke tuning capabilities on the go. porting Calculator v4.2.2 - Page 2 - ATV Riders

Optimizing 2-Stroke Performance with Porting Calculator V4.2.2