Doc 1 - Event Notes - Pirelli Preview
Document 1: Event Notes - Pirelli Preview
From: The FIA Formula One Race Director To: All Teams, All Officials
Date: 14 May 2025 Time: 12:45
Title: Event Notes - Pirelli Preview Description: Pirelli Preview Enclosed: 25R07IMO Preview - Issue A.pdf
This document, in agreement with the FIA and in accordance with Article 30.5 a) of the F1 Sporting Regulations, contains the prescriptions for the operation of tyres during the 2025 Emilia Romagna Grand Prix (16 - 18 May 2025).
Circuit Layout
[Image of the circuit layout is included in the original document]
Compounds Selection
| Compound | FL | FR | RL | RR |
|---|---|---|---|---|
| C4 | DW1 | DW2 | DW3 | DW4 |
| C5 | EY1 | EY2 | EY3 | EY4 |
| C6 | FR1 | FR2 | FR3 | FR4 |
| Intermediate | MG1 | MG2 | MG3 | MG4 |
| Wet | WB1 | WB2 | WB3 | WB4 |
Mandatory race tyres: C4, C5 Q3 tyre: C6
Prescriptions: Pressures & Camber
| Minimum starting pressure | Expected stabilized running pressure | Camber limit | |
|---|---|---|---|
| Slicks | |||
| Front | 24.5 psi | ||
| ≥26.5 psi | -3.00° | ||
| Rear | 22.5 psi | ||
| ≥24.5 psi | -1.75° | ||
| Intermediate | |||
| Front | 24.0 psi | ||
| Rear | 23.5 psi | ||
| Wet | |||
| Front | 20.0 psi | ||
| Rear | 19.5 psi |
Cold Pressure Cooling Curve
[Graph showing Cold Pressure Cooling Curve is included in the original document]
-
Pfront = (T - 70) * 0.122 + Pstartf
-
Prear = (T - 70) * 0.116 + Pstartr
-
Pstartf: Minimum starting pressure on the front axle [psi]
-
Pstartr: Minimum starting pressure on the rear axle [psi]
-
T: Tyre temperature [°C]
Maximum heating times and temperatures (tread & sidewall)
| Temperature | 0°C | 60°C | 70°C |
|---|---|---|---|
| Slicks | max. 2h | ||
| Intermediate | max. 2h | ||
| Wet | No blankets allowed |
- Temperatures refer to tyre tread and side wall temperatures, not blanket or controller set-point temperatures.
- Tyres may only be heated prior to the session in which they are intended to be used.
- The temperatures apply at all times during the event.
Tyre Notes
- Not permitted to switch tyres from their originally allocated position.
- Do not subject tyres to large deformation or heavy impact.
- Do not leave fitted tyres exposed at an air temperature lower than 10°C and/or any excessive UV emission.
- Revised prescriptions could be issued during the race weekend in accordance with TD003.
- Cut-off time for fitting tyres at an event on Sunday morning: 4 hours prior to the race start.
- Heating time temperature limits apply to the actual tyre surface temperature measured with the IR gun as detailed in the TD003.
- BLANKET HEATING TIME for each temperature range to be counted from the moment the blanket control unit is set to reach its targeted temperature within its correspondent interval.
- Cold cooling curve temperature limits apply to the tyre side wall temperature measured with the probe as detailed in TD003.
General Notes
Teams are kindly reminded that the following will be subject to FIA checks during the event:
- Starting pressures
- Cold pressures (according to the cold pressure cooling curves)
- Re-heat pressures
- EOS Camber
- Maximum tyre temperatures and times in blankets
- Tyre swapping