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For those interested:
"How does the engine of the BMW M5 differ from that of the BMW X5 M/X6 M?
The engine of the BMW M5 has been almost completely redesigned. In essence, the only feature it has in common with the engine of the X5/6 M is the bank angle (90 degrees) and the cylinder spacing. The specification sheet also indicated a higher maximum rotational speed of 7,200 rpm.
A lot of new features have been added in order to cater for the demands for low fuel consumption and good response: starting from the continuous regulation of the variable valve timing (VALVETRONIC) by means of the optimised cross-bank manifold to the dethrottling on the intake and output side, where we use larger charge-air coolers and turbochargers with more air throughput according to the M-TwinScroll concept. This required a new cylinder head with new valve drive mechanism and high precision injection. VALVETRONIC is combined with direct injection with an eight-cylinder drive – BMW M has done some pioneering work here. This measure also saves fuel. The oil circulation system has been optimised: a wet sump with an additional oil pump, which has already proven itself in the previous engine. Engine and transmission control are also new. The overall package guarantees a responsiveness familiar from earlier M models with no sign of the so-called “turbo lagâ€."
Read more here:
BMW M Power World
"How does the engine of the BMW M5 differ from that of the BMW X5 M/X6 M?
The engine of the BMW M5 has been almost completely redesigned. In essence, the only feature it has in common with the engine of the X5/6 M is the bank angle (90 degrees) and the cylinder spacing. The specification sheet also indicated a higher maximum rotational speed of 7,200 rpm.
A lot of new features have been added in order to cater for the demands for low fuel consumption and good response: starting from the continuous regulation of the variable valve timing (VALVETRONIC) by means of the optimised cross-bank manifold to the dethrottling on the intake and output side, where we use larger charge-air coolers and turbochargers with more air throughput according to the M-TwinScroll concept. This required a new cylinder head with new valve drive mechanism and high precision injection. VALVETRONIC is combined with direct injection with an eight-cylinder drive – BMW M has done some pioneering work here. This measure also saves fuel. The oil circulation system has been optimised: a wet sump with an additional oil pump, which has already proven itself in the previous engine. Engine and transmission control are also new. The overall package guarantees a responsiveness familiar from earlier M models with no sign of the so-called “turbo lagâ€."
Read more here:
BMW M Power World
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