ACO Regulation Changes For 2007
There are a number of other, minor changes, but these, we believe, are the significant ones.

Full details here

5.5.1 - Noise level : The sound emitted from each car must not exceed 113 dbA during the qualifying practices and the race. The measurement will be made at 15 meters from the edge of the track.

6.5 - Fuel Capacity (LMP1):
6.5.1 - Whatever the outside ambient temperature and atmospheric pressure:
• Petrol : 90 litres maximum on board
• Diesel : 81 litres maximum on board

NB. The fuel capacity for both GT classes has been reduced to 90 litres (from 100).

14.1.9 – Temperature inside the cockpit (Closed cars):
The ambient temperature around the driver must be controlled:
1 Either with an efficient air conditioning system (strongly recommended) which must:
• Comprise a compressor, a condenser, a pressure reducer and an evaporator ;
• Be described on the homologation form and approved by the ACO ;
• Maintain the temperature around the driver at 32°C maximum whatever the temperature on the outside when the car is in motion ;
• Go back down the temperature at 32°C in 8 minutes maximum after a stop of the car.
2 Or with an efficient cockpit ventilation system which must:
• Maintain the temperature around the driver at a maximum of 12°C above the actual temperature when the car is in motion.
• Be described on the homologation form and approved by the ACO as well as the thermal insulations to reduce the heat inside the cockpit. The homologated equipment must not be modified. The ventilation can be adjusted by the driver only if the temperature inside the cockpit is below 32°C. If the ambient temperature exceeds 32°C, additional effective driver cooling systems homologated by the ACO or by the FIA are mandatory.

A temperature sensor can be fitted inside the cockpit by the organiser at driver’s helmet height to the centreline of the car. The sensor must be shielded from direct draught (to the Scrutineers’ assessment).
A driver suit with improved breathability and complying with FIA 8856-2000 specifications is strongly recommended. If the temperature around the driver exceed the maximum permitted above (case 1 and case 2), or if the sensor is disconnected, the car will be stopped until the problem is solved.
A driver, who shows at the end of a stint important signs of tiredness, can be examined by the doctor of the organisation. If it is due to the heat stress, the driver will not be allowed to participate again to the race.

17.1 - Fuel:
The Organiser will supply only one type of fuel for the gasoline engines and one type of fuel for the diesel engines. They must be available for sale.

The ACO wants to maintain the LMP1 on a performance level slightly higher than the one of the LMP2. Consequently adjustments will be carried out at the end of each race season if a variation of less 1.5% is observed on several races between the faster LMP1 and LMP2 (average of the 30 best lap times during the race). These performance adjustments are exclusively the responsibility of the ACO.

Regarding article 17.1, the wording doesn't make it absolutely clear: available for sale to whom? The public? Generally? Or at one pump somewhere?


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