FIA Confirms Power Unit Split Adjustments for 2027 and 2028 Seasons

The FIA, FOM, and Formula 1 power unit manufacturers have officially confirmed a series of technical adjustments to the engine regulations for the 2027 and 2028 seasons. These changes are specifically designed to refine energy management and fuel flow characteristics, ensuring that qualifying sessions remain a test of pure speed rather than a strategic exercise in energy conservation.

Why it matters:

Under the current 2026 regulations, the heavy reliance on electrical power has created challenges in how energy is deployed and recovered. This often forces drivers to manage their battery levels mid-lap, which can lead to a less intuitive driving style and less "flat-out" performance during the most critical moments of a weekend. By shifting the power balance back toward the Internal Combustion Engine (ICE), the FIA aims to maintain the racing excitement of the 2026 era while restoring the raw intensity of qualifying.

By the numbers:

The core of the update lies in the gradual shift of the power split between the ICE and the battery over the next two years:

• 2026 (Current): 53% ICE / 47% Battery
• 2027: 58% ICE / 42% Battery
• 2028: 60% ICE / 40% Battery

What's next:

With the roadmap now confirmed, power unit manufacturers will need to recalibrate their development cycles to accommodate the increased ICE dependency. The focus for the next 24 months will be on optimizing this transition to ensure that the gain in qualifying pace does not compromise the efficiency and sustainability goals established for the 2026 regulation cycle. Teams will likely begin integrating these revised energy flow characteristics into their 2027 simulators immediately.