Full Breakdown
F1 Shifts Power-Unit Balance Toward Internal Combustion for 2027
5/8/2026, 9:02:11 PM
Background & Context
The 2026 Formula 1 regulations introduced a hybrid power unit that split output roughly 50 % from the internal combustion engine (ICE) and 50 % from the energy-recovery system (ERS). Drivers reported that the high-powered ERS forced frequent lift-and-coast and harvesting phases, creating “artificial” overtaking and heightened workload. Earlier V-6 turbo engines had operated closer to an 80 % ICE / 20 % ERS balance, a contrast highlighted by teams as a source of the current concerns.
Core Decision: Adjusting the Power-Unit Architecture
During an online meeting on Friday (May 8) attended by the FIA, F1, team principals and power-unit manufacturers, a consensus was reached to modify the 2027 power-unit rules. The plan calls for a nominal increase of about 50 kW in ICE output and a matching reduction of roughly 50 kW in ERS deployment, moving the power split from near-equal to an approximate 60 % ICE / 40 % ERS configuration.
Data & Statistics
- Proposed ICE power increase: ? 50 kW (? 67 bhp).
- Proposed ERS deployment reduction: ? 50 kW.
- 2026 split: 400 kW ICE (? 545 hp) and 350 kW ERS (? 475 hp), total ? 750 kW (? 1 000 hp).
- 2027 target: ICE around 450 kW (? 600 hp) and ERS capped at 300 kW (? 402 hp) according to some sources; other reports cite ICE remaining near 400 kW.
- Fuel-flow limits will be raised to accommodate the ICE increase.
Official Statements & Responses
The FIA released a statement noting “unanimous commitment to introduce changes which further enhanced fair and safe competition, that were intuitive for drivers and teams and were in the best interests of the sport.” It outlined that the 2027 measures would “increase Internal Combustion Engine power by ~50 kW alongside a fuel-flow increase and a nominal reduction of the Energy Recovery System deployment power by ~50 kW.” The body emphasized that detailed technical discussions will continue before the final package is submitted to the World Motor Sport Council for ratification later in the year.
Criticism & Opposition
Drivers have been vocal about the 2026 hybrid balance. Max Verstappen described the battery-boosted passing as “anti-racing.” Fernando Alonso labeled the series the “battery world championship.” Lando Norris said he “still does not believe any driver could enjoy the current cars,” underscoring the perceived loss of driving pleasure.
On-the-Ground Reports
The Miami Grand Prix was the first event to run the interim 2026 tweaks aimed at curbing excessive harvesting. FIA officials reported “no material issues or safety concerns” after the race, indicating that the short-term adjustments were successful in improving competition without compromising safety.
Conflicting Reports & Gaps
Sources differ on the exact ICE power figure for 2027: Motorsport Magazine cites a target of roughly 400 kW, while Sportskeeda mentions an increase to about 450 kW. Both agree on a 50 kW reduction in ERS output, but the final absolute values remain to be confirmed by the technical groups.
Why It Matters
Shifting power toward the ICE makes throttle response more linear and predictable, addressing driver complaints that ERS deployment is “hard to read and control.” The change is expected to reduce reliance on battery harvesting, produce more consistent lap-by-lap performance, and mitigate safety concerns linked to large speed differentials during overtaking. It also aligns the sport’s hybrid direction with broader automotive electrification trends while preserving the characteristic feel of a combustion-driven race car.
What’s Next
Technical working groups will refine the hardware specifications, after which the Power Unit Advisory Committee, the F1 Commission and the World Motor Sport Council must approve the package. Additional adjustments for race-start safety and wet-weather conditions, already under evaluation, may be introduced before the 2027 season begins.
Verbatim Quotes
- “battery world championship.” — Fernando Alonso, Aston Martin driver
- “Turning to the longer-term refinement of the regulations, it was agreed in principle to introduce evolutionary changes to the rules regarding hardware components, making competition safer, fairer and more intuitive for drivers and teams.” — FIA statement
- “Following Friday's F1 meeting, the governing body stated: "These measures, designed to improve safety and reduce excessive harvesting, were deemed to have delivered improved competition and represent a positive step in the continued refinement of the 2026 framework.” — FIA statement
- “Turning to the longer-term measures, there was unanimous commitment to introduce changes which further enhanced fair and safe competition, that were intuitive for drivers and teams and were in the best interests of the sport.” — FIA statement
