American Le Mans Series

IMSA confirm 2010 ALMS Technical Specifications

© American Le Mans Series

Two weeks before the Sebring race week gets underway the International Motor Sports Association (IMSA) has announced the following waivers for the American Le Mans Series race at Sebring. This race will be run according to Automobile Club de l’Ouest (ACO) regulations and classes, but some minor adjustments have been made for the opening race of the 2010 season.

At Sebring the technical regulations for the LMP1, LMP2 and GT will see the following waivers.

LMP1
1. All cars must meet all ACO Technical specifications with the exception of cars utilizing E85 fuel. These cars are permitted to utilize the same E85 restrictor and weight waivers as granted.
2. E85 capacity will remain at 110L and a pit tank height of 2.2m.

LMP2
1. All cars must meet all ACO Technical specifications,
2. 3.6.3 Rear Wing: Cars must utilize the 2000mm rear wing. All cars must run a gurney strip (wicker) which is a minimum of 20mm in height at all times.
3. Cars running the 2000mm rear wing will not be eligible for an automatic selection for the 2011 “24 Heures du Mans” (NOTE: this does not preclude cars from participating, it only refers to the “automatic selection.”)

GT2
1. All cars must meet all ACO Technical specifications with the exception of the Doran Designs Ford GT; this car is permitted to utilize the same restrictor as was used in 2009.
2. E85 fuel capacity will remain at 110L and a pit tank height of 2.2m.

After the 12 Hours of Sebring, from the Grand Prix of Long Beach on, the American Le Mans Series will not run to ACO regulations anymore but to the different IMSA set of regulations. These rules will be effective in races two through eight (Grand Prix of Mosport).

Cars considered LMP1
1. All cars that have been provided E85 weight and restrictor waivers must remove these waivers for these races (subject to Attachment 2 of the ALMS SSR.) In addition cars utilizing an approved fuel other than E85 must reduce their air restrictor size by 5% as a class sporting adjustment for the combined LMP class.
2. E85 capacity will remain at 110L and a pit tank height of 2.2m.

Cars considered LMP2
1. All cars must meet all ACO Technical specifications (subject to Attachment 2 of the ALMS SSR) with the exception of those cars which have received a class sporting adjustment in 2009; in this case the adjustment may be utilized.
2. 3.6.3 Rear Wing: Cars must utilize the 2000mm rear wing for 2010 competition. All cars must run a gurney strip (wicker) which is a minimum of 20mm in height at all times. The 1600mm rear wing may also be approved as an option at a later date but once it is used the team is committed to its use for all events. Further details regarding the 1600mm will be provided in a separate bulletin if approved.
3. Cars running the 2000mm rear wing will not be eligible for an automatic selection for the 2011 “24 Heures du Mans” (NOTE: this does not preclude cars from participating, it only refers to the “automatic selection.”)
4. All cars may compete with a fuel capacity of 90L.

GT2
1. All cars must meet all ACO Technical specifications (subject to Attachment 2 of the ALMS SSR) with the exception of the Doran Designs Ford GT; this car is permitted to utilize the same restrictor as was used in 2009.
2. E85 fuel capacity will remain at 110L and a pit tank height of 2.2m.

Technical Specifications for round 9 of the American Le Mans Series 2010 season, Petit Le Mans, will be announced 60 days prior to the event. This race will also be part of the Le Mans Intercontinental Cup.

The technical specifications for LMP cars means that LMP1 cars, like the Drayson Racing Lola, will be able to receive an automatic selection for the Le Mans 24 Hours, whereas the LMP2 spec cars will not be able to receive that due to running a non-ACO compliant rear wing. (As seen on the Patrón Highcroft Racing HPD ARX-01c above)