George K
Guest
I have just read a fascinating article in the August edition of Race Engine Technology.
Some key points are:
5.5 litre V12
Bore approx 83 mm
Weight 250 kg
Injection by common rail at 2,000 bar
Power in excess of 650 bhp – limited by two 39.9 mm air restrictors and max boost of 2.94 bar absolute.
Max rpm 5,000, operating range 3,000 – 5,000.
Fixed vane turbos
Fuel consumption at Le Mans about 6 mpg.
Fuel – based on Shell V-power
Uses DPF as no smoke is allowed – very low back pressure type made of ceramic material.
Runs leaner than stoichiometric, not only to minimise smoke, but also to avoid build up of particulate matter on piston and rings.
Major benefit from not having to allow for exhaust gas recirculation.
Some key points are:
5.5 litre V12
Bore approx 83 mm
Weight 250 kg
Injection by common rail at 2,000 bar
Power in excess of 650 bhp – limited by two 39.9 mm air restrictors and max boost of 2.94 bar absolute.
Max rpm 5,000, operating range 3,000 – 5,000.
Fixed vane turbos
Fuel consumption at Le Mans about 6 mpg.
Fuel – based on Shell V-power
Uses DPF as no smoke is allowed – very low back pressure type made of ceramic material.
Runs leaner than stoichiometric, not only to minimise smoke, but also to avoid build up of particulate matter on piston and rings.
Major benefit from not having to allow for exhaust gas recirculation.