2009 Oreca FLM-09

In 2009 the Automobile Club de l’Ouest (ACO) created Formula Le Mans (FLM) as a one-make series intended to level the playing field and curb the increasing costs of endurance racing. The cars were made by Oreca as a variant of Courage LC75 with a near-stock version of the LS3 GM V8 and Xtrac gearbox.

The intention was to create a one-make series as an opening race to the Le Mans Endurance Series. By 2010 the FLM integrated successfully into regular ALMS and the Le Mans Series.

Formula Le Mans Coordinator Alain Marguet said “Our goal was to have a car with very high quality, reliability and a complete budget for the season without any surprises.”

Marguet talked about the engineering choices: “We chose to use the Courage chassis and it is exactly the same as the LMP1 design. After that we chose a strong American engine, and we modified some parts for reliability, like fitting a dry sump, Marelli electronic injection. For the transmission we chose an proven Xtrac gearbox, which we think is the best in the racing world and we fitted a Megaline shifter. It is one of the best systems and as used by Audi. That is a guarantee of reliability.”

In Detail

type Racing Car
built at La Sarthe, France
body stylist Paolo Catone
engine GM LS3 90º V8
position Mid, Longitudinal
aspiration Natural
block material Aluminum
valvetrain DOHC 4 Valves per Cyl
fuel feed Electronic Injection
displacement 6162 cc / 376.03 in³
bore 104 mm / 4.1 in
stroke 92 mm / 3.6 in
compression 10.7:1
power 320.7 kw / 430 bhp @ 5900 rpm
specific output 69.78 bhp per litre
bhp/weight 477.78 bhp per tonne
torque 575 nm / 424.1 ft lbs @ 4600 rpm
redline 6600
body / frame Carbon Fibre Monocoque
driven wheels RWD
front brakes Brembro Carbon Fiber Discs
rear brakes Brembro Carbon Fiber Discs
f suspension Double Wishbones w/Inboard Suspension
r suspension Double Wishbones w/Inboard Suspension
curb weight 900 kg / 1985 lbs
wheelbase 2870 mm / 113.0 in
front track 1647 mm / 64.8 in
rear track 1609 mm / 63.3 in
length 4461 mm / 175.6 in
width 1990 mm / 78.3 in
height 1021 mm / 40.2 in
transmission X-Trac 6-Speed Sequential