Total Insert Volume Limits

In Simple Terms

F1 engines have strict limits on the amount of reinforcing materials (inserts) that can be added to certain engine parts. These inserts can't make up more than 10% of the total volume of those specific components, though inserts in other parts of the engine have no restrictions.

• Inserts in ICE components listed in specific appendix items are limited to a maximum of 10% of that component's total volume
• This rule only applies to certain designated engine components, not all parts
• Inserts in components not listed in the appendix have no volume restrictions
• The rule aims to standardize engine durability and prevent teams from over-reinforcing critical components