Ferrari is working nonstop on the SF-26 single-seater. Taking advantage of the ADUO granted by the FIA for the 2026 F1 regulations, the Maranello team’s engineers and technicians are intervening on the combustion chamber and the MGU-K as this motor generator requires greater efficiency in order to optimize the crucial energy harvesting and deployment phases. These updates, combined with the aerodynamic developments scheduled for the Miami Grand Prix weekend, represent the decisive weapon the Scuderia is aiming to deploy directly against Mercedes.
This overall development direction is part of a broader 2026 technical philosophy in Formula 1, where hybrid efficiency and power unit optimization are becoming increasingly decisive compared to previous seasons. Drivers Charles Leclerc and Lewis Hamilton are expected to be directly impacted by these changes, as the way energy is deployed per lap will significantly influence performance consistency and race pace management.
F1 2026, clarification on the aduo
After the Japanese Grand Prix weekend at Suzuka, much has been said about the ADUO. It is a technical measure strongly supported by the FIA, and it is important to clarify that it is not a Balance of Performance system. In fact, this directive does not penalize or slow down dominant cars in any way. Instead, it formally allows underpowered cars to make mechanical adjustments in order to close the performance gap.
The regulatory system is divided into several tiers, each of which grants a different level of intervention margin. The key parameter for accessing this allowance is the maximum power output. Lap times are excluded from the calculation, as they can be misleading due to the aerodynamic and chassis quality of each individual project. In modern Formula 1, aerodynamic efficiency, tyre management, and chassis balance can significantly distort pure power comparisons, which is why the FIA relies strictly on power unit-related metrics.
According to information gathered and reported by the Italian media, Ferrari falls within the 2% tier. This classification provides the opportunity to make significant structural changes to the power unit. The goal is to eliminate a power deficit estimated at around 20 horsepower. For the Scuderia, this represents a crucial technical opportunity that must be fully exploited in order to compete on equal terms with Mercedes. Engineers and technicians in Maranello see this as a rare chance to correct long-standing inefficiencies without compromising reliability targets.
Ferrari SF-26: the issues in power unit energy management
The timeline for the introduction of Ferrari’s power unit upgrades is now defined. The main focus areas have also been identified. Under the spotlight is the architecture of the combustion chamber, the true core of the engine. According to analysis, this sensitive section of the V6 unit is where the largest portion of Ferrari’s performance deficit compared to the German power unit is located.
Alongside this primary intervention, further modifications to the internal combustion engine will be introduced to extract additional performance gains. However, it would be incorrect to limit the gap analysis to the combustion engine alone. The issues extend across the entire hybrid system, with particular attention on the MGU-K. The kinetic motor generator has shown a significant overall efficiency deficit.
This weakness was confirmed by cross-referencing telemetry data from China and Japan, two circuits with very different demands on hybrid deployment. The limitation has also been acknowledged by drivers and technical staff within Ferrari. The current electrical power delivery curve is still immature and far from the level of optimization achieved by Mercedes, which requires important engineering reflections. In Formula 1, even small inefficiencies in energy deployment can accumulate into meaningful lap time losses over a full race stint.
At Maranello, there is full awareness that a major step forward in algorithmic intelligence linked to the software is essential. Refining this complex engineering area has now become a top priority in order to manage, convert, and deploy recovered energy as efficiently as possible during heavy braking phases. This is particularly important for Charles Leclerc and Lewis Hamilton, who rely heavily on consistent hybrid delivery to maximize performance in qualifying and race conditions.
MGU-K: the importance of the motor generator in lap performance
There is another key area where the ADUO allows intervention: the design of the MGU-K. If properly optimized, this modification could lead to a concrete improvement in overall hybrid system efficiency. Whether due to higher drag from the SF-26 chassis or other contributing factors, a clear conclusion emerged in Japan regarding Ferrari’s current hybrid competitiveness.
The Scuderia’s kinetic energy motor generator is less effective than initially estimated. More precisely, energy recovery is lower compared to Mercedes power units. This means that the amount of usable energy per lap is not aligned with the German benchmark, creating a clear on-track disadvantage that becomes particularly visible in acceleration zones and exit phases of slower corners.
Under the current regulatory framework, which may still be subject to FIA updates in the coming weeks, the maximum energy that can be recovered per lap is set at 9 megajoules. To understand the importance of efficiency, the numbers must be analyzed carefully. Assuming a recovery system efficiency of 95%, the car can store up to 8.55 megajoules per lap.
However, if efficiency drops by just five percentage points to 90%, the stored energy falls to 8.10 megajoules. The mathematical difference between the two scenarios is only 0.45 megajoules. On paper, this may seem marginal, but in Formula 1, such a gap translates into approximately 0.2 seconds per lap. In a tightly competitive field featuring Mercedes, McLaren, and Ferrari, this difference becomes strategically significant.
Ferrari’s work on recoverable electrical energy
Over a race distance, this difference accumulates into a total deficit of around 10 seconds at the finish line. It becomes clear, therefore, that optimizing hybrid system efficiency is far from a minor detail. Instead, it is a vital factor for the competitiveness of the car across both qualifying performance and full race execution.
Ferrari has been working on this area for some time, because beyond the combustion engine and control software, performance can also be extracted from the motor generator itself. The combination of these developments could provide the step forward needed to close the gap to Mercedes. This is the target. It is within this context that Ferrari’s ambitions are built, as the team continues to push hard to achieve it, with the long-term objective of returning to consistent championship-level competitiveness alongside Charles Leclerc and Lewis Hamilton.
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