TO:☒ Teams☒ Manufacturers

CATEGORY:☒ Hypercar☐ LMGT3

DECISION N°: WEC_2024_D05_Hypercar_Technical_information

DATE:

08/01/2024

FROM: The WEC Committee

SUBJECT:

Technical information for the Hypercar category

APPLICABLE REGULATION☒ 2024 Le Mans Hypercar Technical Regulations☒ 2024 LMDh Technical Regulations☒ 2024 FIA World Endurance Championship Sporting Regulations
DECISIONREFUELLING EQUIVALENCE
1- During the race, the maximum cumulative deployed energy per stint (PPUEnergyStint) must be lower than thevalue described in the BOP table. The oversight will be based on the principle of a virtual energy tank store
represented as PPUEnergyTank in the strategy.
2- The energy consumption will be calculated from the integral of the driveshatft torque sensors.
3- That energy will be considered from pit-out to pit-in.
For the first stint, the energy will count from the start-finish line at the start of the race (PPUEnergyTank =PPUEnergyStint).
4- For last stint, the energy calculation will stop at on the finish line at the chequered flag.
5- If PPUEnergyTank drops below 0 a penalty will need to be taken following infringement table in Appendix 4 of theSporting Regulations and the deficit of PPUEnergyTank needs to be compensated at next pitstop at the rate
defined by PPUEnergyFlow.
6- When the refueling hose is connected PPUEnergyTank will increase by the rate defined by PPUEnergyFlow inMJ/s which corresponds to PPUEnergyStint/40s.
7- At each refueling connection the car must be connected by an ‘additional docking time’ before triggering thePPUEnergyTank refill. This is to compensate for different car technologies.
This ‘additional docking time’ will not count for the PPUEnergyTank calculation and will be defined in the BoP.
8- 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

BODYWORK DEFLECTION TESTWe remind all Hypercar Competitors that, for scrutineering reasons, they must always have at the track the tools required
to achieve all the deflection tests.
These tools should all have been previously tested-fitted to be perfectly operational:
DEFLECTION TEST

Art. LMH

Art. LMDhTOOLS REQUIREDSplitter

3.8.2

3.10.2 8 x M5 eye + ref.frame

Front skid block

3.8.5

3.10.8-

Rear skid block

3.8.6

3.10.9-Bodywork gurney

3.8.3

3.10.3 Adapter (15mm)

Rear mainplane--

Adapter (50mm)

Rear flap--

Adapter (15mm)

Rear wing + trans.plates-

3.10.7

6 x Adapter(200mm) + trans.plate adaptor +ref.frame

Rearmost part of rear wing

3.8.4

3.10.6 Adapter (15mm)

Rear flap gurney--

Adapter (30mm)

Tools for splitter deflection test:

Any decision taken by the WEC Committee is not subject to appeal.
http://fiawec.alkamelsystems.com/committe.php(see #a)TAPE ON BODYWORKACO/FIA- Hypercars- Bodywork
Taping
The WEC Committee would
like to clarify
the list of bodywork
taping allowance
withAllowance
the table below:
Teams can use tape in WEC race
eventsTaping from outside,
only when wet tires fitted.

AreaCockpit cooling

Brake coolings

As homologatedNotes
Only designated cockpit cooling ducts can be blanked - as per
WT configuration.
Front and Rear Brake Blanking is fixed to the homologatedmin and max values throughout the ADD range. Intermediatevalues between min-max are permitted.

Engine intake within 'snorkel'

N

Other coolings

NAll other cooling to remain fully open as homologated.
Performance-critical.

Door seals

N

Safety-critical

Door handles

N

Safety-critical

Tow hooks
Fuel filler lid
WiperHandles, latches, lifting bar holes
Other bodywork splits required for safety accessNNNNN

Safety-critical
Safety-critical
Safety-critical
Safety-critical
Safety-critical

Air jack holes

N

Safety-criticalN
Optional
Optional
Optional
Optional
Optional
Optional
Optional
Optional
Optional
Optional
Optional
N/A
N/A

Safety-criticalBattery drain hole
Splitter and RW assembly jig mounting holes
RW - holes and splits to pillars and endplates
Gap btw. engine cover Fin and RW pillars
ADD adj. mechanisms or fixings
Headlights, rear lights
Interfaces btw. heat exchangers and their ducts
Skid block edges, fixings and splits
All floor and diffuser split lines
Any component attached to the wishbones (cables, etc.)
Mounting faces of strakes, tuning vanes etc
All other to body splits in general
Driveshaft chassis, brake duct or bodywork through holes
Pressure tappings
Wind tunnel modifications

Only where safety not an issue, at FIA/ACO's discretion
Teams should not be running p-tapped floors

N/A

CRANKING OPERATIONSThe WEC Committee would like to clarify the cranking operation, therefore, the following article is added to the FIA WECSporting Regulations:
6.6 Engine starting
For the purpose of these regulations, any cranking operation is considered as starting the engine.

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

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

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