: Computes exact durations for exhaust, main transfer, and intake ports (including piston port and rotary valve inlets). Mean Area Analysis : Displays required mean port areas in cm2c m squared
: Once timings are set, use the port CAD window to define the physical shape (roof curvature, max width percentage) and save the design as a PNG for actual machining. Technical Requirements Porting Calculator V4.2.2
based on the current timing and target RPM, ensuring the engine can "breathe" sufficiently at high speeds. : Computes exact durations for exhaust, main transfer,
: Use the graph cursors to set desired durations. For example, durations above 150 degrees typically set the exhaust port, while those below 150 target the main transfer. : Computes exact durations for exhaust