EoT was introduced for the 2018-2019 Super Season in LMP1 to achieve the best possible balance between the performance potential of cars using both hybrid and non-hybrid technologies.
This year, these two types of technologies are in direct competition, with a single works team, Toyota, running a hybrid prototype (LMP1H) against non-hybrid cars (LMP1NH) entered by private teams. The aim of the EoT is to enable these private teams entering recent non-hybrid cars to approach the performance levels of the Toyota hybrid prototypes developed by the Japanese manufacturer since 2016.
Plenty of feedback was given after this years 24 Hours of Le Mans and it was universally decided to review the EoT before the Silverstone 6 Hours on 19th August.
“As a result of the studies carried out this winter we gave private teams a fuel flow to help them achieve performance levels close to those of the hybrid cars”, explained Thierry Bouvet, the Automobile Club de l’Ouest’s Technical Delegate.
“We then took advantage of concrete information collected during the Prologue, the first round at Spa and the Le Mans test day. As competitors know, not everything can be foreseen at Le Mans”.
“For example, between the test day and qualifying at Le Mans the fastest time in the LMP2 category improved by 2.4 seconds compared to 0.2 seconds for the non-hybrid LMP1s. Several factors can explain this such as different track conditions or because the teams didn’t want to compromise reliability. Finally, multiple contextual parameters could also have affected certain EoT estimations”.
“This is why we’re taking the following decisions: the performance gap of 0.25% is being reduced to 0% (the 0.5-seconds difference per lap at Le Mans between hybrids and non hybrids is no longer relevant). The fuel flow for privateer LMP1s goes up from 108 kg/h to 115 kg/h compared to 80 kg/h for the hybrids”.
Consequently, the fuel flow of the refuelling system used by private teams has been increased, but in addition, cars powered by normally-aspirated engines will benefit from a 15kg weight reduction.
The changes will come into effect from the 6 Hours of Silverstone onwards.
Image: Adrenal Media
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