Race Scrutineering
Miami Grand Prix · 2025 · 4 May 2025 · Doc 81
2025 MIAMI GRAND PRIX
02 - 04 May 2025
Technical Delegate's Report Before the Race:
The following parts have been replaced today after 14:55 and before the start of the race:
Aston Martin Aramco Mercedes:
Car 18: Throttle pedal assembly Parameter changes associated with the throttle pedal replacement
A central floor deflection test was carried on car number 22. A horizontal and angled rear wing main plane deflection test was carried out on car number 16.
A rear wing main plane tip deflection test was carried out on car number 16.
The front wing of car number 01 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 front wing flap adjustable range of car number 01 was digitally checked. A front floor deflection test was carried on car numbers 31, 06 and 55.
A fuel sample was taken from car numbers 44, 63 and 14 and analysed during the race.
An engine oil sample was taken from car numbers 63 and 14.
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.
From The FIA Formula One Technical Delegate To The Stewards Document 81 Date 04 May 2025 Time 19:53
On the grid the temperature of the LHS and RHS front and rear tyre was checked on car numbers 81, 16, 01, 22, 63, 12, 31, 23 and 55.
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:
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
22 Red Bull Racing Honda RBPT Yuki Tsunoda
63 Mercedes George Russell 12 Mercedes Kimi Antonelli 18 Aston Martin Aramco Mercedes Lance Stroll
14 Aston Martin Aramco Mercedes Fernando Alonso
10 Alpine Renault Pierre Gasly 31 Haas Ferrari Esteban Ocon 06 Racing Bulls Honda RBPT Isack Hadjar
23 Williams Mercedes Alexander Albon 55 Williams Mercedes Carlos Sainz 27 Kick Sauber Ferrari Nico Hülkenberg
The following aerodynamic component or bodywork areas were checked on car number 16:
- Floor Body - TR Article 3.5.1 - Floor Fences - TR Article 3.5.2 - Floor Edge Wing - TR Article 3.5.3 - 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 was checked on car numbers 81, 04, 16, 44, 01, 22, 63, 12, 06, 23 and 55.
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 all cars.
The brake temperature warnings were checked on all cars.
The steering wheel of all cars has been checked.
The race start data of all cars have 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 used by all drivers during the race today have been checked.
The tyres cold pressure was checked on car number 18.
An fuel sample was taken from car number 04.
The fuel samples have been checked for density and analysed by gas chromatography. The results of all the fuel analyses show that the fuels were the same as ones, which had been
approved for use by the relevant competitors prior to the Competition. Further the density change of the fuel samples taken today was within the permitted limits.
An engine oil sample was taken from car number 04.
The engine oil samples have been analysed by FTIR spectroscopy and viscometry. The results of the FTIR analyses show that the sampled oils were consistent with reference engine oil samples which had been approved for use by the relevant competitors prior to the Competition.
All car weights and the items checked were found to be in conformity with the 2025 FIA Formula One Technical Regulations.