Article C5.4.13
Intake valves head diameter
Technical Regulations
Article C5.4.13
Intake valves head diameter
Chapter: C5
In Simple Terms
F1 engines must have intake valves with head diameters between 32.5mm and 34.5mm. All intake valves on an engine must be identical to each other, ensuring fairness and preventing teams from experimenting with different valve sizes.
- Intake valve head diameter must be between 32.5mm and 34.5mm
- All intake valves must be identical in design across the entire engine
- This regulation ensures standardization and prevents competitive advantages through valve variation
Official FIA Text
The intake valves' head diameter must lie between 32.5mm and 34.5mm. All intake valves must have an identical design.
intake valvesvalve head diameterengine specifications32.5mm34.5mm
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