The LMH prototypes will have the IMSA doors open from 2023, like the LMDh of the WEC, in a convergence that is defined from four major keys since the LMH have a series of competitive advantages due to the conception of their hybrid systems and the direct development of the manufacturers. In this regard, FIA, ACO and IMSA have defined some points of this convergence, measurements around key technical elements such as tires, acceleration, braking system and aerodynamics. All these measures have been approved by the World Motor Council at its meeting on July 8.
Along these lines, the FIA, ACO and IMSA working group has defined the tire size of the LMH and LMDh prototypes, as well as the parameters that will adjust the acceleration profile of each type of vehicle. On this last point, perhaps the most outstanding thing is that LMDh control software will allow the hybrid system to collaborate with traction control. A formula has also been defined to adjust braking capacity and aerodynamics. The ‘European’ homologation for the WEC of aerodynamics will be in the Sauber wind tunnel, while the ‘American’ homologation will be carried out by WindShear.