Written by Anna Tredinnick
Track Day 03rd July 2025 Part 2
The second half of the track day got underway at around 5:00pm, with the focus shifting towards suspension development and IMU testing. After a busy morning of endurance and powertrain work, this session was all about trying out different spring setups and collecting valuable data on the car’s dynamics for both the Race Engineering and Suspension team.
As the first half of the day ended, we had run into some issues with starting the car. When someone from the High Voltage team arrived, they were able to check the accumulator, which allowed us to get back on track for the evening session.
For the suspension runs, two of our experienced drivers alternated between driving, testing a range of spring stiffness settings to see which setups they preferred and how each setup affected handling. This type of feedback is important because it directly feeds into this year’s design decisions, giving us a clearer idea for optimising both handling and overall car performance.
Alongside the spring testing, we also made use of the team’s new IMU system to log car behaviour during autocross runs. The IMU was mounted in the centre of the car, with antennas positioned at the front and rear. Using the SBG Systems software, we were able to record detailed data before and during each run. This information will be invaluable when it comes to optimising the car’s setup and understanding exactly how it behaves in different conditions.
By around 9:20pm, the car was back on charge while the crew switched the track from an autocross layout to a skidpad. The aim was to continue testing the springs, this time in a steady-state setting. Running both layouts gives us useful contrasts: autocross highlights performance in quick transitions and frequent direction changes, while the skidpad shows how the car handles in consistent and stable corners.
Unfortunately, as the car went out for the skidpad runs, an issue with our powertrain accured, forcing us to wrap up a little earlier than expected. Despite this setback, the team collected a significant amount of useful data throughout the day, making the session productive overall.
