Use the generated physical measurements to grind or machine your cylinder.

Porting Calculator v4.2.2 is a digital utility that assists in calculating critical engine airflow dimensions. Whether you are working on a 2-stroke or 4-stroke engine, this software helps you determine the ideal port sizes, timings, and shapes needed to maximize horsepower and torque.

Essential for 2-stroke tuners to determine port durations.

: Calculates Jennings and Blair angle areas, mean areas, and time areas to ensure port designs support efficient cylinder filling. Visual Interface

For macOS or Linux users, version 4.2.2 runs via Wine or a Java wrapper (check the readme file).

Do not download from sites that require you to complete surveys or download "download managers" first.

The Porting Calculator v4.2.2 boasts an impressive array of features that make it an indispensable tool for calculations and conversions. Some of the key features include:

Once you complete your , you will have access to a robust set of features, including:

: Allows users to input expected BMEP (Brake Mean Effective Pressure) values to estimate horsepower (HP) or kilowatts (kW). CAD Window

: By entering the exhaust timing, the program can automatically calculate all transfer port heights. Angle-Area Analysis

Modifying these ports (known as "porting") increases airflow and boosts engine horsepower. The software eliminates manual math errors, ensuring precise engine tuning. 🔑 Key Features

The Porting Calculator is a specialized digital tool designed for automotive and motorcycle enthusiasts. It calculates exact measurements for modifying engine cylinder ports [1].