Formula 1 Agrees To Engine Power Changes Starting Next Year

Formula 1’s governing body has approved power unit adjustments that will somewhat reduce the awkward energy management that's become the norm under the sport’s new hybrid regulations.

The FIA announced a smaller, phased increase in internal combustion engine output beginning in 2027. Next year, the power split moves to 58/42 between combustion and electric power, up from the current 53/47, before becoming a 60/40 split in 2028.

While the new power unit formula has delivered closer racing and improved efficiency, drivers and fans have complained there's too much time being spent managing battery energy rather than racing flat-out.

The new power split will be delivered by increasing fuel flow limits by five percent, boosting combustion engine output by about 30 horsepower. Because the increase is relatively modest, constructors are not expected to require major fuel tank modifications—which was a big sticking point during negotiations.

At the same time, electric motor output will be reduced by about 65 horsepower under normal operation. However, the sport’s Overtake Mode will remain unchanged at 350 kW, which means Overtake Mode will still provide a healthy power boost when close enough to attempt passes. Energy harvesting capacity will also rise from 250 kW to 375 kW, which should reduce the very visible power clipping, especially in a straight line.

A more substantial adjustment is planned for 2028. Fuel flow will increase by 13 percent compared to current levels, raising combustion engine output to 600 horsepower. Maximum energy harvesting will increase again to 400 kW in 2028, while deployment limits and Overtake Mode settings will remain the same.

“The 2026 Formula 1 regulations were developed and agreed in close partnership between the FIA, FOM, teams, OEMs and Power Unit Manufacturers,” the FIA body said in a statement. “These latest amendments reflect the continuation of this collaboration with all stakeholders working collectively to refine the framework and address identified operational challenges.”

Mercedes and Red Bull Ford Powertrains were down for more aggressive revisions starting next year, but Audi and Ferrari wanted a more gradual approach, so we ended up with this compromise instead.

The proposed changes will now be submitted to the FIA World Motor Sport Council for final approval during its June 23 meeting in Macau.

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