Doc 28 - P1 and Sprint Qualifying Scrutineering

Technical/Scrutineering

2026 Singapore Grand Prix - Technical Delegate's Report

Document 28 | Date: 09 October 2026 | Time: 23:35

The FIA Formula 1 Technical Delegate reports on the scrutineering checks performed during Practice 1 (P1) and Sprint Qualifying for the 2026 Singapore Grand Prix.

Before the First Free Practice Session

  • Chassis identification transponders confirmed for all cars.
  • Exhaust system components checked against team declarations.
  • Driver helmet camera assembly / correct ballast installation checked.

During the First Free Practice Session

  • Engine & Fuel Checks: Tyre starting pressures, engine high rev limit bands, fuel flow meter calibration checksums, instantaneous and partial load fuel energy flow, fuel temperature, plenum temperature, and engine intake air pressure were checked on all cars.
  • Power Unit & ERS Checks: Maximum turbocharger speed, PU and MGU-K power reduction rates, DC sensor temperatures, on-track ES state of charge, ERS recharge limits, maximum MGU-K power limits, and MGU-K speed checked.
  • Control Systems: Torque coordinator demands, torque control, custom software versions, TPMS coverage, and maximum front/rear wing adjuster system transition times checked on all cars.
  • Other: Car number 18 was weighed. Fuel pressure and engine cooling system logged pressure checked on all cars.

Before the Sprint Qualifying Session

  • Confirmed that gear ratios used comply with those declared before the first Competition of the 2026 Championship.

During the Sprint Qualifying Session

  • Weighing & Weight Distribution: Car numbers 81, 12, 06, 31, 87, 43, and 77 were weighed, and their weight distribution was checked.
  • Aerodynamic Checks: Comprehensive bodywork and aerodynamic components (Floor, Nose, Chassis, Roll Hoop, Mirror, Sidepod, Engine Cover, Tail, Front/Rear Wing elements) were checked on car number 87.
  • Tyre starting pressures checked on all cars.

After the Sprint Qualifying Session

  • Weighing: Car numbers 81, 01, 63, 12, 03, 06, 16, 44, 30, and 10 were weighed.
  • Aerodynamic Checks: Aerodynamic components checked on car numbers 12, 06, and 10.
  • Power Unit & Systems: Comprehensive checks on fuel pressure, cooling pressure, fuel flow, temperatures, turbo speed, PU/MGU-K power reduction rates, DC sensor temperatures, ES state of charge, ERS limits, MGU-K limits, torque control, chassis FIA checksums, and torque sensor checks.
  • Brakes & Steering: Rear brakes pressure control checked on cars 81, 01, 63, 12, 16, and 44. Steering wheels checked on all cars.
  • Software & Tyres: Custom software, SECU software versions, TPMS, and tyre cold pressures (Car 81) checked.

SECU Software Versions (All Teams)

TeamFIA Standard ECU System Version
McLaren Mastercard F1 TeamSR1838
Mercedes-AMG PETRONAS Formula One TeamSR1838
Oracle Red Bull RacingSR1838
Scuderia Ferrari HPSR1838
Atlassian Williams RacingSR1838
VISA Cash App Racing Bulls Formula One TeamSR1838
Aston Martin Aramco Formula One TeamSR1838
TGR Haas F1 TeamSR1838
Audi Revolut F1 TeamSR1838
BWT Alpine Formula One TeamSR1838
Cadillac Formula 1 TeamSR1838

Conclusion: All the above items were found to be in compliance with the 2026 FIA Formula One Technical Regulations.

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