F1 Agrees on Power Unit Regulation Revisions for 2027 and 2028

The FIA, Formula One Management, and engine manufacturers have officially agreed to revise the Technical, Sporting, and Financial Regulations for the 2027 and 2028 seasons. The decision follows months of intense debate regarding the operational challenges and energy management demands introduced by the 2026 power unit formula.

Why it matters:

The current 50/50 split between internal combustion and electrical power has proven problematic, with drivers and engineers reporting excessive constraints on energy deployment. By shifting the balance back toward the internal combustion engine (ICE), F1 aims to make qualifying more "flat-out" and reduce the artificial limitations of battery management, ensuring the racing product remains competitive and exciting.

The details:

• Staged Power Transition: Instead of an immediate jump to a 60/40 split in 2027, F1 will implement a two-step approach to minimize hardware redesigns.
  • 2027: ICE output increases from 400kW to 420kW with a 5% rise in fuel flow, resulting in a 58/42 split.
  • 2028: ICE output will rise to 450kW with a 13% increase in fuel flow, achieving the final 60/40 target.
• Energy Harvesting: Limits will increase to 375kW in 2027 and 400kW by 2028 to support the new power balance.
• Constants: The overtake mode will remain unchanged at 350kW across both seasons.
• Financial Flexibility: Updated financial regulations will provide manufacturers with additional cost cap headroom to implement these technical changes.

The big picture:

This agreement is a calculated political compromise. Mercedes and Red Bull Ford Powertrains pushed for a more aggressive reduction in electrical dependency starting in 2027. Conversely, Audi and Ferrari voiced concerns over the limited timeframe and the immense resources required for rapid hardware overhauls. The staged rollout allows all manufacturers to adapt without compromising their development budgets or reliability.

What's next:

The agreed package will be submitted for formal approval at the FIA World Motor Sport Council meeting in Macau on June 23. Once ratified, teams will begin integrating these changes into their long-term power unit roadmaps.