What are the technical specifications of Le Mans?

The tradition of the 24 Hours of Le Mans is to divide cars of different specifications into Nogan groups and compete at the same time. At present, the vehicles participating in Le Mans are divided into two categories and four groups, among which LMP 1 and LMP2 are Le Mans prototypes, that is, racing cars specially developed for this event; GT 1 and GT2 are cars modified from mass production models.

In the technical rules of Le Mans, the upper limit of the size of the sample car of Le Mans is: length 4650 mm, width 2000 mm and height 1030 mm (referring to the bottom of the car body to the roof, not the ground). The hard top and convertible of the car body are not limited, but the power unit of the car must be enclosed in the car body and invisible from the front, roof and left and right directions.

LMP 1 engine has high specifications and is not limited to the number and types of cylinders. The displacement of naturally aspirated engine is less than 6 liters, turbocharged or supercharged gasoline engine is less than 4 liters, and turbocharged diesel engine is less than 5.5 liters. These regulations encourage teams to use engines of production cars. The maximum displacement of engines that meet the LM GT 1 specification and have an annual output of more than 1000 can be extended to 7 liters.

The engine specification of LMP2 Group is lower than LMP 1. The number of cylinders of naturally aspirated engine is limited to 8, and the maximum displacement is 3.4 liters. Mechanical or turbocharged engines have a maximum of 6 cylinders and a maximum displacement of 2.0 liters. For mass-produced engines meeting LM GT2 specifications, if the annual output exceeds 65,438+0,000 units, the maximum displacement is limited to 4.0 liters, and if the annual output exceeds 65,438+0,000 units, the maximum displacement is limited to 4.5 liters.

GT 1 racing car, the upper limit of its size is: 5000mm long and 2000mm wide (excluding rearview mirror), and the wide body parts used in modification cannot exceed100 mm. The naturally aspirated engine has a maximum displacement of 8 liters and the turbocharged engine has a maximum displacement of 4 liters.

GT2 racing car, the maximum size is: 4800 mm long and 2000 mm wide (excluding rearview mirror). The maximum displacement of naturally aspirated and supercharged engines is also 8 liters and 4 liters, but the modification degree of GT2 is lower than that of GT 1.