ACO announces 2009 LeMans regulations
All races run under the Le Mans label in 2009 (Le Mans 24 Hours, American Le Mans Series in the USA and the Le Mans Series in Europe) will be governed by a single set of ACO regulations. This is why it is so important to publish them well before the first events of the 2009 season so that the entrants can prepare their cars according to the technical specification. These regulations include the guidelines announced by the ACO at the Silverstone press conference on 13th September: level playing field, safety, cost reductions and sustainable development. It consists of 5 documents: LM P1 and LM P2 technical regulations, LM GT1 technical regulations, LM GT2 technical regulations, supplementary technical regulations and sporting regulations.
The main outlines of the 2011 regulations
The technical definitions for the 2011 Le Mans 24 Hours concern 4 precise points:
- LM P1 and LM P2 engines: reduction of power, and cubic capacity reduction in LM P1 (diesel, 3.7-litre twin turbo 8 cylinders maximum instead of 5.5 liters, petrol, normally aspirated 3.4-litre 8 cylinders maximum instead of 6 liters, petrol, 2.0-litre turbo 6 cylinders instead of 4.0 liters), in LM P2 (diesel, 4.0-litre turbo 8 cylinders, petrol, 4.0 liters prepared on the basis of 2010 GT2, petrol, 4.5-litre series production). The minimum weight in LM P1 remains at 900 kgs and is increased from 825 to 900 kgs in LM P2
- Hybrid systems aimed at reducing fuel consumption (free development in compliance with precise rules).
- Fuel tank capacities (75 liters instead of 90 liters for petrol engines, and 68 liters instead of 81 liters for diesels)
- Wheel dimensions unchanged in relation to the 2009 regulations).
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