iRacing Sportscar Series
Cars
BMW M Hybrid V8
BMW's long-awaited return to the highest ranks of prototype racing comes in 2023, as the German manufacturer teams up with chassis partner Dallara and team partner Rahal Letterman Lanigan Racing to bring the BMW M Hybrid V8 to the IMSA WeatherTech SportsCar Championship. Built to a new set of global prototype regulations, two M Hybrid V8s will compete in IMSA's premier GTP class, but countless more reproductions of the car are set to debut on iRacing before its first racing lap.
Years of coordinated efforts in both North America and Europe to create a unified top-level rule set have allowed top-tier manufacturers to return to the prototype ranks, with BMW becoming one of the first to announce its involvement. The M Hybrid V8 produces approximately 640 horsepower out of its four-liter powerplant alone, with its electric motor able to add even more boost.
Detailed Specifications
V-shaped Otto four-stroke twin-turbo engine
Capacity:
3,999 ccm
No. cylinders:
8
Cylinder construction:
Cast aluminium cylinder block and cylinder head, cylinder lining as iron layer in LDS procedure
V angle:
90°
Bore:
93 mm
Stroke:
73.6 mm
Cylinder spacing:
102 mm
Valves per cylinder:
4
Engine speed:
max. 8,200 rpm
Output (regulated):
approx. 665 hp
Torque:
approx. 650 Nm
Injection:
High-pressure direct injection at 350 bar
Oil system:
Dry sump system with six-cell oil drain pump and oil tank
Length:
5100 mm
Wheelbase:
3150 mm
