Race Scrutineering
Chinese Grand Prix · 2025 · 23 March 2025 · Doc 86
2025 CHINESE GRAND PRIX
21 - 23 March 2025
Technical Delegate's Report Before the Race:
A spare RHS front corner of car numbers 63 and 12 was digitally scanned and the scanned data
were compared with the team declared CAD drawings. Further the team declared CAD drawings
were also compared with previously submitted versions and checked for conformance with the 2025 Formula One Technical Regulations. The height of the front wing gurneys were checked on car numbers 81, 04, 16, 44, 30, 31, 87 and 27. The dimensions of the rear wing gurneys were checked on all cars.
A vertical and angled rear wing main plane deflection test was carried out on car number 22.
A rear wing main plane tip deflection test was carried out on car number 22.
A front floor deflection test was carried on car numbers 81 and 44.
On the grid it was checked that all cars had fitted their tyres and the tyre heating blankets were
disconnected, when the "5-Minutes" signal was given.
On the grid the temperature of the LHS and RHS front and rear tyre was checked on car numbers 81, 04, 16, 44, 01, 63, 12, 18, 31, 06, 23 and 27.
On the grid the minimum tyre starting pressure of the LHS and RHS front and rear tyre was checked on all cars.
After the Race: The following cars were weighed: From The FIA Formula One Technical Delegate
To The Stewards Document 86
Date 23 March 2025 Time 19:50
Number Car Driver
81 McLaren Mercedes Oscar Piastri 04 McLaren Mercedes Lando Norris 16 Ferrari Charles Leclerc 44 Ferrari Lewis Hamilton 01 Red Bull Racing Honda RBPT Max Verstappen
30 Red Bull Racing Honda RBPT Liam Lawson
63 Mercedes George Russell 12 Mercedes Kimi Antonelli 18 Aston Martin Aramco Mercedes Lance Stroll
10 Alpine Renault Pierre Gasly 07 Alpine Renault Jack Doohan 31 Haas Ferrari Esteban Ocon 87 Haas Ferrari Oliver Bearman 06 Racing Bulls Honda RBPT Isack Hadjar
22 Racing Bulls Honda RBPT Yuki Tsunoda
23 Williams Mercedes Alexander Albon 55 Williams Mercedes Carlos Sainz 27 Kick Sauber Ferrari Nico Hülkenberg 05 Kick Sauber Ferrari Gabriel Bortoleto
The following aerodynamic component or bodywork areas were checked on car numbers 18, 07 and 31:
- Floor Body - TR Article 3.5.1 - Floor Fences - TR Article 3.5.2 - Floor Edge Wing - TR Article 3.5.3 - Bib - TR Article 3.5.4 - Nose - TR Article 3.6.1 - Forward Chassis - TR Article 3.6.2 - Mid Chassis - TR Article 3.6.3 - Mirror Housing - TR Article 3.6.4 - Sidepod - TR Article 3.7.1 - Coke Panel - TR Article 3.7.2 - Engine Cover - TR Article 3.7.3 - Tail - TR Article 3.8.1 - Front Wing Profiles - TR Article 3.9.1 - Front Wing Endplate body - TR Article 3.9.2
- Front Wing Tip - TR Article 3.9.3 - Front Wing Diveplane - TR Article 3.9.4 - Front Wing Endplate - TR Article 3.9.5 - Rear Wing Profiles - TR Article 3.10.1 - Pylons - TR Article 3.10.2 - Rear Wing Beam - TR Article 3.10.3 - Rear Wing Endplate Body - TR Article 3.10.4 - Rear Wing Tip - TR Article 3.10.5 - Rear Wing Endplate - TR Article 3.10.7
The skid wear of car numbers 81, 04, 01, 30, 63 and 12 was checked.
The fuel pressure of all cars during the race was checked.
The logged pressure within the engine cooling system during the race was checked on all cars.
The engine high rev limit bands were checked on all cars.
Fuel flow meter calibration checksums were checked on all cars.
The instantaneous fuel mass flow of all cars was checked.
The partial load fuel mass flow of all cars was checked.
The fuel temperature of all cars was checked.
The plenum temperature was checked on all cars.
The oil consumption was checked on all cars.
The exhaust fluid mass flow of all cars was checked.
The IVT temperatures were checked on all cars.
The ES state of charge on-track limits were checked on all cars.
The lap energy release and recovery limits were checked on all cars.
The MGU-K power limits were checked on all cars.
The maximum MGU-K speed was checked on all cars.
The maximum MGU-K torque was checked on all cars.
The maximum MGU-H speed was checked on all cars.
The MGU-K use at the race start was checked on all cars.
It was checked on all cars that the ES was not charged while the car was stationary in the pits.
The torque coordinator demands were checked on all cars.
The torque control was checked on all cars.
The session type has been confirmed for all cars.
Chassis FIA checksum was checked on all cars taking part in the race.
The rear brakes pressure control was checked on car numbers 81, 04, 16, 44, 01, 30, 63, 12, 18, 10, 07, 31, 87, 06, 22, 23, 55, 27 and 05.
The brake temperature warnings were checked on all cars.
The steering wheel of all cars has been checked.
Single clutch paddle use for the race start has been checked on all cars.
It was checked that no car exceeded 80 km/h when leaving the formation grid prior to the start of the race.
It was verified on all cars that the PCU dash display configuration was not changed during Parc Fermé.
The tyre starting pressures of all cars during the race were checked.
The tyres cold pressure was checked on car numbers 01 and 63.
The tyres used by all drivers during the race today have been checked.
Apart from the car weights of car numbers 16 and 10 (see Document 77) and the skid wear of car number 44 (see Document 80), all car weights and the items checked were found to be in conformity with the 2025 FIA Formula One Technical Regulations.