TECHNICAL BULLETIN N°18

TECHNICAL BULLETIN N°18
Please find below performance adjustments decided by the ACO Sport Committee and applicable
as from the “24 Heures du Mans” 2011:
LMP1
LMP1
Fuel flow restrictor
diameter
Lola Toyota
Pescarolo-Judd
Oak-Pescarolo-Judd
Zytek
HPD ARX-01ee
Oreca-Swiss HY TechHybrid
Aston Martin – AMR
Lola Aston Martin
Peugeot 908 HDI Oreca
Audi R18
Peugeot 908


38 mm
38 mm
38 mm
38 mm
38 mm
38 mm
38 mm
38 mm
25 mm
25 mm
25 mm
Air restrictor
Diameter (with
weight reduction)
2 x 30.9 mm
2 x 30.6 mm
2 x 30.9 mm
1 x 43.7 mm
Air restrictor
Diameter (without
weight reduction)
2 x 31.1 mm
2 x 30.8 mm
2 x 31.1 mm
1 x 43.9 mm
Weight
2 x 30.5 mm
2 x 30.7 mm
890kg
915kg
890 kg
890 kg
890 kg
890kg
Fuel flow restrictor diameter is modified according to article 19 of LMP1 regulations
(adjustment diesel versus petrol engine).
Air restrictor diameter and weight are modified according to article 1.3 of the ACO Sporting
Regulations (different technologies within a range of 2% of lap times). As indicated on the
table above, the cars that benefit of this 2% rule may reduce the weight or not. Depending of
their choice, they must adjust the restrictor accordingly. They must keep this choice until the
end of the season.
LMP2 :
LMP2
Fuel flow restrictor
diameter
Nissan
Judd
HPD
LMP2 2010
LMP2 2011
28 mm
31.5 mm
Air restrictor
Diameter
(2010 LMP2)
Air restrictor
Diameter
(2011 LMP2)
1 x 41.3 mm
1 x 42.4 mm
LMGTE :
Adjustment of performance
17/05/2011
Weight (Kg)
2 Restrictors (mm)
Gurney (mm)
Fuel tank capacity
(litre)
base
adjustment
Base
adjustment
Base
adjustment
Base
adjustment
1245
0
28.6
+ 0.3
25
0
90
0
1245
0
28.6
0
25
0
90
0
1245
0
28.3
0
25
0
90
0
Corvette C6R
1245
0
27.9
+ 0.9
25
0
90
0
BMW M3
Europe
1245
0
28.6
+ 1.2
25
0
90
0
BMW M3 USA
1245
0
28.6
+ 0.8
25
0
90
0
Aston Martin
Vantage
1245
-
50
28.3
+ 1.4
25
-
90
+5
Spyker
1245
-
50
28.6
0
25
0
90
0
Jaguar
1245
0
29.5
+ 1.4
25
0
90
0
Ford GT
Doran
1245
0
28.1
+ 1.2
25
0
90
0
Lotus Evora
1245
-
28.6
+ 1.4
25
0
90
Porsche GT3
RSR
Ferrari
F 430
Ferrari
F 458
50
Adjustments applied last year
Adjustments introduced as from 17/01/2011
Adjustments introduced as from 17/05/2011
10