Zafiro
Supreme Roadmaster
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 lag”.
More intresting questions here: BMW M Power World
Enjoy!
PS remember to read both pages
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 lag”.
More intresting questions here: BMW M Power World
Enjoy!
PS remember to read both pages
