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Porsche has to believe there is no substitute for a displacement as the motorsport division’s LMDh prototype will rock a massive V8 with a pair of turbochargers. Toyota and Peugeot have decided to stick with the smaller V6 for their Le Mans Daytona hybrid race car. That doesn’t mean the guys from Zuffenhausen will have more powerful engines as the LMDh regulations state total output should not exceed 500 kilowatts (670.5 horsepower).
Interestingly, the V8 is being engineered to use renewable fuels to reduce CO. drastically2 emissions and will spin at a screaming 10,000 rpm. A twin-turbo power plant must weigh at least 180 kilograms (397 pounds) after accounting for exhaust and cooling systems. Connected to an Xtrac transmission, the engine should produce a passing sound no louder than 110 decibels.
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The first tests were carried out at Porsche’s in-house Weissach track and the initial response was overwhelmingly positive. Urs Kuratle, LMDh Overall Project Manager at Porsche Motorsport, said the combustion engine “impressed us in every way. We are confident that we have chosen the right unit.”
Other restrictions to note include a minimum weight of 1,030 kilograms (2,271 pounds) and a fixed wheelbase of 3,150 millimeters (124 inches). Race cars must be no longer than 5,100 mm (201 in) and wider than 2,000 mm (79 in). All will use a hybrid battery system developed by Williams Advanced Engineering and a Bosch electric motor with a maximum power of 50 kW (67 hp).
At the heart of the new track’s weaponry is the Multimatic chassis derived from the LMP2 and will be used by Audi prototypes, with Lamborghini possibly following in 2024. The goal is to have the LMDh beast ready by the end of the year, but to make that happen, a lot of tests will be taking place in a few months. future.
Porsche Penske Motorsport will field the car with the 2023 season in the FIA WEC World Endurance Championship and North American IMSA WeatherTech SportsCar Championship. The cost limit for a car without an engine has been set at €1 million or about $1.12 million at current exchange rates.
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