Formula One Finalizes 2026 Engine Rules — More Electrons, Fewer Molecules (With Video)
After what seems like years of wrangling, the FIA has announced new technical rules that will govern the powertrains used by Formula One teams beginning with the 2026 season. At the center of the discussions about the new rules is the desire to attract new engine suppliers to the sport. Currently, if you want to race in Formula One, you have to chose an engine supplied by Ferrari, Mercedes, Renault, or Honda/Red Bull.
Environmental sustainability — the 2026 Power Unit will include an increase in the deployment of electrical power to up to 50% and utilize aFinancial Sustainability — Financial Regulations regarding the Power Units will reduce the overall costs for competitors whilst retaining the cutting edge technological showcase that is at the core of Formula 1.
But the units were incredibly complex and complicated engine packaging considerably. At the start of the turbo hybrid era in 2014, the turbocharger and the MGU-H were bundled together and failure rates were high. Mercedes solved the packaging problem by splitting the MGU-H in half and positioning the components at either end of the engine. They were connected by a shaft running between the cylinder heads of the V-6 engine. Failure rates plummeted and it took most competitors years to catch up.
The new rules raise the total power available from the electric motor from 120 kW in today’s cars to 350 kW . The engines will run on 100% sustainable fuels sourced from non-food plants, municipal waste, or carbon capture, meaning no new carbon dioxide will be added to the atmosphere by the engines. Output of the turbocharged 1.6 liter engine will remain at about 635 kW .
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