FIA Initiates Electronic Ballot on Proposed Power Unit Compression Ratio Adjustments
The FIA has commenced an electronic voting process focused on modifying how power unit compression ratios are evaluated during race conditions. This regulatory adjustment represents a significant technical development for Formula 1's engine specifications.
In a move to refine the sport's technical framework, the FIA has initiated an e-vote that primarily addresses a proposed modification to power unit regulations. The focal point of this ballot concerns alterations to the methodology used for assessing compression ratios in running conditions.
This electronic voting procedure signals the FIA's commitment to evaluating potential regulatory changes through formal channels, allowing stakeholders to weigh in on the technical direction of Formula 1's engine specifications. The compression ratio assessment represents a critical component of power unit performance and compliance, making any adjustments to this evaluation process a matter of considerable importance to teams and manufacturers alike.
The e-vote mechanism enables a streamlined decision-making process, ensuring that any modifications to engine regulations receive proper consideration before implementation. As the sport continues to balance technological advancement with competitive fairness, this regulatory review demonstrates the FIA's ongoing effort to maintain the integrity and precision of Formula 1's technical regulations.
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Related Regulations
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Full Regulation Text
Article C5.4.3
Geometric compression ratio limit
Chapter: C5
In Simple Terms
F1 engines have a limit on how much they can compress the air-fuel mixture inside each cylinder. No cylinder is allowed to have a compression ratio higher than 16.0, which means the mixture can be squeezed to no more than 16 times its original volume. Manufacturers measure this themselves following FIA guidelines.
- Maximum compression ratio of 16.0 applies to every cylinder in the engine
- Compression ratio measures how much the air-fuel mixture is squeezed before ignition
- Each engine manufacturer is responsible for measuring and verifying their own compression ratio
- Measurements must follow FIA-provided guidance to ensure standardization
Official FIA Text
No cylinder of the engine may have a geometric compression ratio higher than 16.0. The procedure to measure this value will be detailed by each PU Manufacturer according to FIA guidance.
Article 5.1
Definition of a New PU Manufacturer
Chapter: SECTION C: TECHNICAL REGULATIONS
In Simple Terms
A 'New PU Manufacturer' is a company entering F1 for the first time that hasn't built power units before (2014-2021) and hasn't inherited significant technology from existing manufacturers. If approved by the FIA, they receive special benefits and exemptions for 5 years (from 3 years before entry through 1 year after). The FIA evaluates applicants based on their facilities, engine experience, and ERS system knowledge.
- New PU Manufacturers must meet two conditions: no prior homologation since 2014 AND no significant inherited IP from established manufacturers
- Approved new manufacturers receive a 5-year window of special rights/exemptions (N-3 to N+1 calendar years)
- The FIA has absolute discretion in granting status and evaluates applicants on infrastructure investment, ICE experience, and ERS system expertise
Official FIA Text
A PU Manufacturer intending to supply PUs for the first time in year N, will be considered to be a "New PU Manufacturer" if it (or any related party): a. has not homologated a PU at least once in the period 2014-2021; and b. has not received any significant recent Intellectual Property from a PU Manufacturer who is not a New PU Manufacturer, subject to the conditions outlined in Article 5.2 of this Appendix. (together, for this Article 5 only, the "Necessary Conditions") The "New PU Manufacturer" status will be granted by the FIA, at its absolute discretion, for the complete calendar years from N-3 to N+1. In order to be granted the "New PU Manufacturer" status, the PU Manufacturer in question must, upon the request of the FIA, provide the FIA with all of the detailed information or documents requested by the FIA describing the commercial background and details of the PU Manufacturer's business, the Intellectual Property owned by the PU Manufacturer and the technical relationship between the PU Manufacturer and any other related entity or persons (the "Requested Documentation"). PU Manufacturers granted a "New PU Manufacturer" status are given additional rights or exemptions in certain provisions of the Technical, Sporting and Financial Regulations. In order to assess whether the Necessary Conditions have been satisfied by a PU Manufacturer, the FIA will assess the Requested Documentation provided by the PU Manufacturer with regard to three factors: a. Infrastructure: the necessity for the PU Manufacturer to build facilities, invest significantly in assets, and hire personnel with prior Formula 1 experience; b. ICE status: the prior experience of the PU Manufacturer in Formula 1 Internal Combustion Engines, and potential possession of significant recent Intellectual Property; and c. ERS status: the prior experience of the PU Manufacturer in Formula 1 ERS systems, and potential possession of significant recent Intellectual Property.
Article 1.2
Homologation dossier contents
Chapter: Appendix C5
In Simple Terms
Before a team can use a new power unit in F1, they need to submit a complete package of paperwork to the FIA. This package must list every major power unit component, all the smaller parts, and other required documents following a specific FIA template (FIA-F1-DOC-C047). Think of it as getting your engine approved before you can race.
- Teams must document all Power Unit (PU) Elements - the major components like the engine, turbo, and MGU systems
- A detailed list of Minor Parts must be included - smaller components that make up the power unit
- All submissions must follow the official FIA-F1-DOC-C047 format and template
- This homologation process is the approval system that ensures all power units meet F1 regulations
Official FIA Text
Dossier must include details of all PU Elements, detailed list of Minor Parts, all required documents, submitted per FIA-F1-DOC-C047.
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