Ideal Four 4 Stroke Valve Size Calculator

使用此應用程序找到4衝程發動機的理想閥門直徑尺寸。

Easy to use for finding an ideal valve diameter size of the 4 stroke engine. In this app includes :

- Cylinder Head With 1 Intake Valve & 1 Exhaust Valve

- Cylinder Head With 2 Intake Valves & 2 Exhaust Valves

This app is recomended for an Engine Builder's. This app can be use for finding an ideal valve diameter size of the 4 stroke engine with specific/type of an engine e.g. racing, drag race, grasstrack/trail/trial.