Cylinder combustion chamber and intake port volumes are cubic centimeter (CC) tested for uniformity by fluid test methods for improved engine power and superior engine smoothness on XR Black Edition™ engines. New cylinder castings have varying intake port and combustion chamber volumes and can cause changes in individual cylinder horsepower output.
A cylinders position installed on an engine can also change individual cylinder horsepower output due to changes in available induction air flow and cylinder cooling causing uneven cylinder effective compression ratio balance.
By balancing the individual CC level of a cylinder to the available induction airflow and cylinder position on an engine, a superior improvement can be obtained in providing for the ultimate in engine smoothness and power balance of an engine.
