FIA Confirms 2027 Engine Rule Tweaks: More ICE Power, Less ERS Deployment

The FIA has confirmed that proposals for 2027 engine regulation changes have been agreed in principle, following an online meeting with team principals, FOM, and power unit manufacturers. The key shift: a nominal increase in internal combustion engine (ICE) power by roughly 50kW, achieved through higher fuel flow, paired with a corresponding 50kW reduction in ERS deployment power.

Why it matters:

This rebalancing between ICE and hybrid output could significantly alter the competitive landscape. By reducing reliance on energy recovery systems, the changes aim to make racing more intuitive for drivers and teams, potentially closing the performance gap between different power unit philosophies. It also addresses driver feedback calling for more natural, less computer-assisted racing.

The details:

• Power shift: ICE output will rise by ~50kW (approx. 67 horsepower), while ERS deployment drops by the same amount, keeping total power output nominally constant but changing how that power is delivered.
• Fuel flow increase: The extra ICE power comes via a higher fuel flow rate, which will require adjustments to engine mapping and strategy.
• Unanimous support: All stakeholders committed to changes that "further enhance fair and safe competition" and are "in the best interests of the sport."
• Next steps: Further detailed technical discussions among teams and power unit manufacturers are required before the final package is decided. The proposals stem from weeks of consultations, including valuable input from F1 drivers.
• Context of recent changes: The meeting also reviewed the impact of the Miami Grand Prix rule tweaks (introduced to improve racing and safety after early-season weaknesses). Additional safety measures for starts and wet conditions are under development, and new visual-signalling solutions could debut as early as the Canadian Grand Prix.

What's next:

The FIA will continue working with stakeholders to finalize the 2027 engine rules. The approved-in-principle package is expected to be confirmed later this year, giving manufacturers time to adapt their designs. Teams will need to balance the increased fuel flow demands with reliability and weight considerations, potentially reshaping the engine development war for the next regulation cycle.