TO:☒ Teams☒ Manufacturers

CATEGORY:☐ Hypercar☐ LMGT3☒ LMP2DECISION N°: WEC_2024_D20_LMP2_Technical_update_LEMANS_Amended

DATE:

12/06/2024

FROM: The WEC Committee

SUBJECT:

Technical information for the LMP2 category for the 24 Hours of Le MansAPPLICABLE REGULATION
Article 6.2.3☒ 2024 24 Hours of Le Mans Supplementary Regulations

DECISION
In accordance with Article 6.2.3 of the 24 Hours of Le Mans Supplementary Regulations, in order to achieve performance
stratification and speed profiles between Hypercar and LMP2, the following will apply for LMP2 in 2024:•Engine air inlet restrictor of 35 mm with max 8000 rpm (1st to 5th) and 8500 rpm (6th).
For further details, please refer to ‘’GIBSON – LMP2 Engine Manual’’.
Contact Gibson for configuration update.

•Gearbox Set 3.

•Bodywork configuration as described in Oreca Evo 29:
o LE MANS bodywork kit to be used at all tracks at all timeso Removal of front dive planeso Diffuser strakes shorten by 50 mm modified/produced by chassis constructoro Addition of 10 mm gurney on rear flap to compensate aerodynamic balance•Maximum onboard fuel volume to 75 liters•Minimum car weight to 950kg

The calculation and application of LMP2 refuelling times for the Le Mans competition are detailed below.

1- The maximum onboard fuel volume is established by the WEC Committee.
2- During the race, the refuelling time (for all refuelling pitstops) must be more than:T refuelling time (s) > ( N number of laps completed since the last refuelling (-) x K coefficient of second per lap completed (s) )In LMP2, K= 4.0 s and therefore after 10 laps the minimum refuelling time will be 40 s.
For the first stint, the calculation will count from last refuelling prior to the lap to the grid before the start of the race.
All cars must have sufficient fuel to drive to parc fermé and undertake a fuel sample if required.

Any decision taken by the WEC Committee is not subject to appeal.
http://fiawec.alkamelsystems.com/committe.php

3- During the race, the minimum refuelling time after an emergency stop must be:
T refuelling time (s) > [ ( N number of laps since last refuelling under green (-) x K coefficient of second per lap completed (s) ) – T Art.14.5.2 ]As example, T2 for LMP2 should be: T2 > [ (10 + 2) x 4.0 – 4.8 ]RUN (n-1)
10 laps

PITSTOP (n-1)

RUN (n)PITSTOP (n)under Art.14.5.2

Full Course Yellow

mandatory pitstop

T1 = 4.8 s

2 lapsT2

4- During the race, if refuelling time is less than the above defined minimum refuelling time by an amount of T short, theCompetitor must extend (at his initiative) the next refuelling time by:
P time self-penalty (s) = ( T short (s) x 4 penalty coefficient ) + 5
If the last refuelling time of the race is less than the above defined minimum refuelling time by an amount ofT short, a time penalty of
P time penalty (s) = ( T short (s) x 4 penalty coefficient ) + 5 will be applied to the classification of the race.
5- By delegation of the Panel of Stewards (but without prejudice of the Technical Delegates’ right to resort to it) any
breach of the above rule will result in an added pit lane time penalty of :P time penalty (s) = ( T short (s) x 4 penalty coefficient ) + 15
6- Refuelling times will only be monitored using the fuel coupling sensor signal.
It is the Competitor’s responsibility to ensure that the sensor’s signal is correct. Any failure to do so will result in an
immediate obligation to fix the problem. Any power cycle done during refuelling will result in a not compliant
refuelling time.

Any decision taken by the WEC Committee is not subject to appeal.
http://fiawec.alkamelsystems.com/committe.php

It is mandatory to use the 2024 Le Mans 24Hr Oreca07 LMP2 ECU Base Dataset: V1289WEC_G505Or030_XXXX.cds
with the following parameters:Vehicle Speed Limit Speed Threshold(SZ/FCY Speed)

77.5 kph

Goal Slip Gear Multiplier
REVERSE

1NEUTRAL

1FIRST

1SECOND

1THIRD

1FOURTH

1FIFTH1SIXTH

1SEVENTH

1EIGHTH

1

Front Wheels Outside Diameter A

677 mmFront Wheels Outside Diameter B

677 mmFront Wheels Outside Diameter C

677 mmRear Left Wheels Outside Diameter A

699 mmRear Left Wheels Outside Diameter B

699 mmRear Left Wheels Outside Diameter C

699 mmRear Right Wheels Outside Diameter A

699 mmRear Right Wheels Outside Diameter B

699 mmRear Right Wheels Outside Diameter C

699 mmVehicle Wheel Speed Select (All ratios)

MAX_FRONT_SPEED

Dynamic Teeth to Average Enable

DISABLED

As a general rule, any and all traction control related parameters must remain unchanged

PERIOD OF VALIDITY/APPLICATION OF THE DECISION
This decision comes into effect:☒ with immediate application☐ from:And is applicable:☐ until further notice☒ for the mentioned event(s) only: 24 Hours of Le Mans

Any decision taken by the WEC Committee is not subject to appeal.
http://fiawec.alkamelsystems.com/committe.php