Once carry in BMW M5 (E60) of naturally aspirated v10s engine has “buried”, and I of its evaluation is a F1’s high technology with armed civilian high-performance engines. Although it completely meet the BMW to m. vehicle dynamic aspects in the appeal, but it’s not too conforms to the BMW advocate efficient power strategy, whether in oil consumption or emission levels have been couldn’t keep up with the pace of the “new age”. And the larger size and weight also go against with the ultimate control weight ratio of car M before and after. Such a look, it’s exit also is just a question of time, even if it has the honor to receive many times the world’s best engine award.Since then, BMW launched v10s successor–a double turbocharged V8 engine, and BMW will this paragraph V8 engine is divided into two versions, one is carrying on 750 Li, X5 camera models such as the “moderate”-N63B44 code, the other is used for X5M, X6M, on the M5 “radical”-S63B44 code. The new engine in emissions, cylinder size, stroke in no poor, but specific to the technology of set-up and different brought about by the low price hook type commutator performance difference is obvious.
This type of V8 engine emissions for 2.6 L, the centrifugal casting technology of wet cylinder liner, and at the same time through the engineering personnel clever design, engine in the cold and hot state realize the automatic compensation of the valve clearance. Equipped with two carburetor make its maximum power to reach 100 horsepower, such data in just passed the war in Europe has very good.After half a century later, in 1998, BMW to restart its V8 road, will be a code S62B50 of naturally aspirated V8 engine carrying at the time of the M5 (E39) and Z8 models, the maximum power 400 horsepower, can say it is a preference for the performance of the high speed machine, the breakthrough 5000 RPM later, power still crazy. But with a new generation of 5 (E60) and the M5 launch, M-Power-the latest masterpiece S85B50 code of the classic engine v10s.After reviewing the history, when the double today BMW turbocharged V8 engine comes out, its technology and strength, I think should is beyond doubt. This machine S63B44 engine in the first paragraph 10 of carrying X5M and X6M, in two turbine and the 1.2 bar high boost the Settings, the output power to reach 555 Ps / 6000 RPM, the maximum torque for 680 N · m / 1500-5650 RPM. In promoting weight 2.3 tons of X5M, only less than 5 seconds can break 100 km/h.In order to get more broad peak torque output speed, especially considering the dynamic characteristic of low speed range, BMW is adopted to Double the vortex tube technology to reduce peak torque engine speed, and at the same time cooperate with Double VANOS technology, let the power of the engine output more smoothly ranges of direct injection technology in cylinder and the compression of the car cameras ascension than 10:1 fuel efficiency.
Change. For M vehicle, continuing an output in the engine cooling system is a massive test, and the engineering personnel design a separate oil cooler, be used for turbocharger water cooling system, at the same time, the way of the cold water to reduce the environment on the influence of the temperature of inlet.From v10s to V8, from naturally aspirated to turbocharged, BMW through some column technology constantly meet M vehicle power to the car DVD desperate, but also to meet increasingly stringent emission regulations and will also meet these two seemingly contradictory necessary conditions, only rely on technology innovation and exquisite workmanship, double turbocharged V8 engine will also be the future within a period of time, BMW higher-end models on the main.
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