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CYLINDER HEAD CONSTRUCTION [MZR-CD (RF Turbo)]

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• A lightweight aluminum alloy cylinder head with good thermal conductivity has been adopted.
• A plastic region bolt has been adopted as a cylinder head bolt providing constant high axial force (tightening force).

## Double-Tangential Port

• Sufficient swirl can be generated even with low engine speed due to the bending of the port.
• Due to the adoption of 4 valves, the opening area has been increased and the charging efficiency improved.
• The smooth curved intake port reduces intake resistance.
• Locating the fuel injector on the center of the cylinder head provides consistent fuel injection in the combustion chamber, and in conjunction with the swirl generated in the double-tangential port, production of a balanced air-fuel mixture has been realized.

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1 | Exhaust port
2 | intake port
3 | Fuel injector
4 | Port layout
5 | Intake port cross-section

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1 | Fuel injector installation