Summary
Formula 1's governing body, the FIA, will change the rules on how engine compression ratios are measured. This decision followed concerns from multiple teams that Mercedes had an advantage. The new rule will be in effect from June 1, 2026, and further changes will come in 2027.
Key Facts
- The FIA will change how engine compression ratios are measured in Formula 1.
- Teams like Audi, Ferrari, Red Bull, and Honda pushed for this change.
- The new measurement will happen at a higher temperature (130°C) starting June 1, 2026.
- Mercedes was said to gain up to 0.3 seconds a lap advantage with the old rule.
- The compression ratio originally changed from 18:1 to 16:1 with new engine rules.
- Audi and Ford joined F1, and Honda stayed, attracted by new power-unit rules.
- These rules include a balance between petrol engines and electric power.
- The FIA is also looking into energy management in cars to make driving easier.
