Furthermore, the intake ports and the diameter of the intake valves were designed to create a swirling effect for the air as it entered the combustion chamber.
For the EE20 engine, all five main bearings in the cylinder block had metal matrix composite journals inserted during the cast process for rigidity and due to their similar thermal expansion to the crankshaft.
At higher engine speeds, however, the vanes would open to reduce airflow resistance and improve fuel consumption.
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