The Crucial Role Of F1 Pre-Season Testing: Pit To Podium
Key Takeaways
- The pre-season testing for Formula One helps teams evaluate the reliability of the cars, validate the simulations, and collect important data.
- The engineers use performance laps, long laps, telemetry systems, aerodynamic instruments, and input from drivers to set the right settings for the car.
- The lap times during the testing process can be misleading due to factors such as fuel, tyres used, weather conditions, and the testing approach.
Formula 1 cars are complex machines built to perfection, yet before the first race of the season begins, they become 200 mph science experiments. Despite a significant investment of time and resources in ensuring a new F1 car's speed in winter simulations, there always exists the possibility of it malfunctioning once it exits the garage for the first time in real life.
Therefore, F1 teams undertake a thorough debugging and fine-tuning process with their cars prior to the first race to ensure maximum speed and reliability. This process used to span over ten days of pre-season testing in Spain. However, to reduce costs, the number of test days has been cut down to three, occurring just a week before the first race at the same venue.
Reasons Behind F1 Testing
The first morning of testing usually involves running system checks on the car to ensure everything functions correctly. Despite having sophisticated test benches at their factories and likely completing a 200-kilometre shakedown prior to arriving in Bahrain, nothing can compare to running the car all day under the harsh desert sun.
Early checks on the cooling, hydraulic, brake systems, and electrical systems on the first day are crucial to identify any potential reliability issues. In its race specification, an F1 car carries more than 300 sensors generating up to 90MB of data per lap, but during testing, these numbers increase to collect as much real-world data as possible.
Sensors on F1 cars, often too small to spot and usually placed under the bodywork, measure temperature, inertia, and loads. However, for understanding a car's aerodynamics, the sensors are often clearly visible. Large metal fences, known as rakes, are attached to the cars behind areas of airflow to measure air pressure and understand the flow structures around the car.
These rakes comprise a series of pitot tubes, and their readings are compared with the team's winter wind tunnel and computational fluid dynamics (CFD) work. If the real-world data aligns with the simulations, a team is already several steps closer to unleashing the car's true potential at the first race. If it doesn't, the team is already at a disadvantage.
Flow-Vis Paint Helps to Find Out Real-World Airflow
Another approach to understanding real-world airflow around a car's surfaces is to douse it in "flow-vis" paint and observe how the colourful water-based liquid spreads across the bodywork at speed. This surprisingly simple method allows engineers to determine if the aerodynamic surfaces are influencing the airflow as intended.
Driver feedback is also crucial for understanding a new car. Small details like the seating position often need adjustments, and long days in the cockpit are the best way to determine what's comfortable and what's not. Steering feedback and brake feel are also early boxes to tick, although it can take more than half a season before a driver is truly satisfied with the finer details. More experienced drivers can also help engineers pinpoint where lap time is lost by describing the car's behaviour through corners.
Once it has been established that the car's fundamentals are functioning as they should, teams focus on setup. Finding the right setup is key to unlocking performance, and understanding how a car will react to different ride heights, wing angles, and suspension settings helps engineers develop a toolbox of solutions to utilise in different situations later in the season. Engineers will dedicate large portions of testing to go through different setup combinations to determine what works and what doesn't across different fuel loads and tire compounds.
Gaining as much knowledge as possible at this stage of the year can prove beneficial later in the season when handling issues that arise during competition. The goal by the final day of pre-season is to have a reliable car that responds well to setup changes, along with a wealth of data to inform the next steps of car development back at the factory.
Methods to Find Out Who Is the Fastest
Lap times, as they appear on the timing screens, are rarely an accurate picture of the competitive order. A light fuel load and fresh soft tyres can make an average car appear faster than the most competitive car on high fuel and used hard tyres. Therefore, the order at the end of each day should be treated with caution.
The teams having a difficult time in testing are easier to spot, as the most evident sign that a new car is struggling is a lack of mileage. While that usually indicates a reliability issue, it also means the team is not advancing with the car's performance simply because it is not getting the track time or data to progress.
Assuming the car is reliable, the vibe around a team during testing can also suggest where it stands. Engineers and drivers are always eager to downplay expectations at this time of year, but within the close-knit F1 paddock, confidence levels become increasingly easy to gauge after a few days at the track.
Despite the fastest times for each team being potentially misleading, it is still possible to piece together a vague picture of who's quick and who's not by delving deeper into the available data. You will be able to better understand what is actually going on and start to make your predictions about who has had the biggest improvement during the winter months by spotting these specific trends in lap times.
Performance runs are very helpful.
The performance sessions that happen during Formula 1 testing use teams to gauge how their cars perform within a single lap. This can be seen in the way "hot laps" and "cool-down laps" are done alternately by the drivers, which can be shown on the timing screens. Fast laps and cool-down laps need to be alternated to give tyres and the hybrid system time to recover.
Pirelli gives five compounds of tyres labelled C1 to C5, where softer compounds offer good performance but less durability. The changing temperature throughout the day affects the track surface, and the optimal surface can be found when the sun goes down. Fuel load greatly affects the speed of the cars since every 10 kg adds about 0.3 seconds. Finding out the fuel load of the car is not possible externally.
Long runs are also vital, but not timesheets.
A study of GPS data from competing cars is essential for determining the speed in corners and on the straights. Race simulators in which cars cover the whole racing distance without having to stop for fuel allow eliminating many uncertainties about the fuel load.
However, such things as the state of the track surface and tire strategy can affect the outcome. While lap times are crucial for determining the performance of a car, it should be noted that testing is conducted mainly for gathering information and studying the car.
Conclusion
Even though everybody wants to be quick, the priority at the moment is to collect information and understand the car. Even though looking for who regularly gets quick lap times may give clues on possible favourites, it must be noted that time does not tell the whole story. Teams test with different fuel loads and different tire compounds.
Also, keep in mind that some teams might be sandbagging, which means they intentionally hold back their true pace and performance until the real action begins. While some kind of order usually emerges from testing, it's not always representative of the first race. This year, the sole preseason test and the first race were held at the same venue, Bahrain, improving the chances of an accurate prediction.
FAQ
How many drivers take part in pre-season testing in Formula 1?
Normally, all 20 drivers who compete in Formula 1 pre-season testing sessions take part in testing, with the track time split among the two drivers from each team.
What does an F1 team test during pre-season?
F1 teams test everything: reliability, aerodynamics, tyres, suspension, braking, cooling, hybrid systems, and car setups, and collect plenty of data from the track.
How do teams decide which Formula 1 car is the fastest in testing?
Lap times are not everything in deciding which car is the fastest; the teams consider many other things like fuel loads, tire compounds, GPS data, etc.
Why are long runs important during F1 testing?
Long runs help teams understand tire degradation, fuel consumption, race pace, and how consistently the car performs over multiple laps under realistic racing conditions.
Can F1 testing results predict the first race?
Testing can provide useful clues about competitiveness and reliability, but the results are not always representative because teams may use different fuel loads, tire strategies, and performance programmes.
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