Major 2027 Rule Change Could Shorten F1 Races

F1 is making changes to its 2026 regulations, which will bring about a 50/50 energy split between the internal combustion engine and the electric energy generated by the car.

As a result, drivers and teams have both complained about “clipping,” which occurs when cars generate insufficient kinetic energy.

This has led to a ton of energy management by drivers, resulting in a “yo-yo” effect: cars regularly swap positions and are unable to fully contest meaningful overtakes on track.

In an attempt to address the feedback, F1 has shifted the regulations, setting the ratio at 60% conventional and 40% electric.

May 3, 2026; Miami Gardens, FL, USA; Crew members prepare the car of Ferrari driver Charles Leclerc before the Crypto.com Miami Grand Prix at Miami International Autodrome. Mandatory Credit: Sam Navarro-Imagn Images

However, the changes to the cars will require significant modifications, which could lead to shorter races due to a restriction.

“But that fuel flow change means bigger fuel tanks needed, and we understand as many as half the teams were hoping to carry their current chassis into next year,” a video published on The Race said.

“They might want cost cap relief to pay for a new chassis.

“Other options are to make races 10% shorter to make the fuel flow work without bigger tanks, or only change the fuel flow rate for qualifying, not races, too.”

What impact will the changes have on the races?

The result would mean a loss of laps per race to compensate for the overall lack of fuel. If the racing, however, is more entertaining to watch, fans would certainly accept a lower total volume of racing for higher-quality clashes on the track.

The changes are still in their infancy, and they could be adjusted to help the teams develop larger fuel tanks, though that will likely be a harder adjustment than simply managing the number of laps.

Car developers fixate on a car’s weight and what it means for a driver and lap times overall.

The fuel tank change will likely require additional development time so engineers can properly adjust to a heavier unit and balance the car’s weight.

The FIA and F1 will need to further refine their rules, and the length of races could be overhauled.