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infos technique sur la 1M de M-power part 1,2 & 3 NEWS!!

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Voila le message reçu de BMW M-power :nickel: Je vous laisse traduire les termes techniques :rolleyes:

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Inline-six ///M engine of the BMW 1 Series M Coupé.

A maximum of 500 Nm torque and 340 HP may impress in numeric terms alone. Likewise, average consumption rates according to the ECE standard and 9.6 litres per 100 kilomètres, as well as a crisp acceleration to 100 km/h in 4.9 seconds are all welcome statistics. But what about that genuine M feeling? What do the emotions have to say?

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///M Button at the steering wheel

The BMW M hallmark is evident in numerous details: thus, the starting performance of the M TwinPower turbo engine was given an extremely spontaneous twist by redeveloping the mapping of the software. This is also helped by the approximately two kilogram lighter flywheel, which was also optimised for the maximum torque of 500 Nm. The M button on the wheel enables vehicle response to be further enhanced. With real fire in his eyes one of the community test drivers in Leipzig described this effect:

The precise steering responsiveness typical of M automobiles is assured in the BMW Series 1 M Coupé by the Servotronic speed-dependent hydraulic steering support – this guarantees perfect control and predictability thanks to a constantly exact feeling for the steering angle and precise response in relation to the state of the road. This enables the BMW Series 1 M Coupé to be steered with ultimate precision, something that is sure to being a radiant smile to every drivers’ face.

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Precise steering responsiveness

The characteristically powerful acceleration from even low revolution speeds, paired with an impressive rev performance and long-lasting thrust are enormously attractive and play a vital role in the exhilarating experience on the race track.

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Powerful acceleration and impressive rev performance

A button on the instrument panel enables the driver to activate the M Dynamic Mode (MDM): extended intervention thresholds for controlling driving stability and specifically applied over-steering take driving dynamism to the next level. Naturally, the DSC can also be fully deactivated, however it is advisable never to underestimate the spontaneous power of the BMW 1 Series M Coupé.

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MDM Button

Newly designed piston rings are used in the engine. The two turbo chargers use turbines made from high tensile steel and will easily withstand temperatures of up to 1000 degrees Celsius.

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High Precision Injection

The direct fuel injection contributes significantly to the high degree of efficiency of the engine, which uses Piezo injectors arranged centrally between the valves to ensure a particularly precisely dosed fuel supply.

The high degree of compression also increases the effectiveness. In addition, measures such as brake energy recycling and demand-controlled ancillary units are also used, so that the M engine of the BMW Series 1 M Coupé unites fascinating performance with great efficiency. This is something that will also be important for drivers with a sporting interest - after all fewer pit stops never did anyone any harm.

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The compact six-speed transmission with dry sump lubrication is a new development. Its suitability for high torques is combined with a weight of just 43 kg – much lighter than similar gearboxes. The short M gear lever underlines the crisp and precise gear change – the traditional sportiness of this elite class.

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Drive shaft

Because the drive shaft is also a new part, every ing is specifically tailored to the requirements of the BMW Series 1 M Coupé in this combination, starting from the flange of the crank shaft.

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Cold air inlet with additional water cooler (other side: oil cooler).

The same also applies to the front-end, which is characterised by large cold air inlets. These ensure that plenty of cold air reaches the powerful in-line six-cylinder engine. Together with additional cooling components, this arrangement ensures the technology is kept at just the right temperature during competition.

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Special air inlets give rise to the "air-curtain".

In order to optimise the aerodynamic properties, so-called air curtains are used for the first time in a series-built car.

There is little doubt that the driver’s hearing adds to the emotion of the M Coupé: the two twin tailpipes of the exhaust system, the driving experience with a tailor-made, compact, minimalist sound, which is as lively as it is captivating.

However, this BMW M is also absolutely perfect for day-to-day use: “This is all the more important because we expect that many BMW Series 1 M Coupés will be chosen as first cars,” explains developer Jürgen Schwenker.

Are features such as a genuine four-seat configuration or a 60:40 folding rear seat important? Indeed they are, because these advantages ensure that the BMW Series 1 M Coupé can be used on the street, while other cars are forced to wait in the garage for their next opportunity to be used.

It would also be a pity to miss a single minute of the pure driving pleasure the M has to offer.

A Suivre ... :arrow:

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Exciting curves for more driving pleasure.

It all began with the statement: “Let’s build a genuine BMW M.”

Ideas for an entry-level model M automobile that was worthy to carry the name have long been entertained. After the model palette was expanded with the BMW X5 M and the BMW X6 M, and the sporty profile of the BMW M3 was further sharpened with the BMW M3 GTS, the time was ripe for the BMW Series 1 M Coupé. The engineers at BMW M were to be given an opportunity to show how they imagined a small BMW M – and the executive management under the chairmanship of Dr. Kay Segler was impressed with the results. It is not hard to see why.

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BMW 1 Series M Coupé.

Anyone looking at the BMW Series 1 M Coupé today will readily admit: the BMW M design team has worked miracles. Every aspect of the powerful, athletic design with its M-specific aesthetic leaves you wanting more. Anyone with a genuine love of cars will immediately feel the same “must-have reflex” that was once evoked by the BMW M3 E30 Sport Evo.

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BMW 1 Series M Coupé and BMW M3 Evo E30.

“Form Follows Function”: just as one would expect from BMW M, the vehicle’s exciting curves are more than window-dressing.

A logical decision has been taken in line with the aims of BMW M. “The kinematic qualities of the M3 were incorporated because the way in which the tracking and camber respond when deflected is just phenomenal,” confirms developer Jürgen Schwenker. The transverse link and trailing arm constructions have already undergone their baptism of fire in the BMW M3. It was possible to do without the thrust panel, the aluminium support that reinforces the front of the BMW M3, because the inline six-cylinder turbo engine is even lighter than the already compact V8 engine of its bigger brother. Thus, the châssis of the BMW Series 1 M coupé is lighter than that of the BMW 135i. The standard 19 inch competition wheels play their part in this.

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Exciting curves for more driving pleasure.

But back to the prototype car: the tyres should be covered even on a pre-series development model. Hence, hand-made extensions to the mudguards were modelled and documented in countless prototype photographs.

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Spy image: One of the first BMW 1 Series development cars at the Nürburgring Norschleife. (Source: 1addicts.com)

Of course it would also have been possible to produce the mudguard extensions in series with glass fibre reinforced add-ons. However, as you’d expect at BMW M, Development doesn’t believe in half measures. It was decided to pour a great deal of effort into developing a completely new rear side section. The extreme flexibility shown by the BMW plant in Leipzig means that special measures can be integrated in the normal production process without any problems.

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BMW 1 Series M Coupé in production: BMW plant Leipzig.

Even if the latest member of the BMW M model family shares many of the genes of the BMW M3, the BMW Series 1 M Coupé is a completely separate car with a specific character and highly expressive nature. The driving experience is characterised by the rich turbo torque and the compactness of the BMW Series 1. This was taken into account.

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Variable M differential lock.

Thus, for example, the variable M differential lock from the BMW M3 with a newly developed characteristic curve. Key parameters in this include the lightweight tyres and engine. If the basic lock torque is too high, the car could tend to under-steer. That is why the BMW M engineers thoroughly tested precise aspects of the lock on courses such as the northern loop of the Nürburgring. “The BMW Series 1 M Coupé also has a lot of traction in alternate curves and impresses with its neutral handling style,” enthuses châssis expert Jürgen Schwenker.

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The powerful extended mudguards are visible evidence to all of the design principle of the joy of driving, however this is an experience reserved for the drivers of the BMW Series 1 M Coupé.

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Exciting curves - also underneath the car.

The fact that this pleasurable experience will not have a trace of regret is also thanks to the light compound brake system which is meticulously tailored to the vehicle’s sporty driving style. It will even be possible to obtain racing brake linings as accessories for these brakes.

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Powerful brakes - race track linings available.

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C'est très flou???

non !!! la photo est claire pourtant :mrgreen::ptdr:

on en saura plus dans pas longtemps j'espére :rolleyes:

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III ieme et dernére partie des infos "techniques" sur la serie 1///M

En attendant de se faire notre propre opinions en live !!!

Nobility at high speed.


It usually takes a car up to 60 months to reach market maturity from the first strategic idea. The fact that things can move a bit faster has already been demonstrated by BMW M with the BMW M3 GTS. When it came to the new BMW Series 1 M Coupé, work also took place at full tilt. There will only be a comparatively short period of time between the decision to implement the BMW Series M Coupé and the planned market introduction in early 2011.

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BMW M3: extremely agile châssis.

Such a high development temp could only be achieved with the passion and know-how of the M team, which made intelligent use of tried and tested modular components. Both the BMW M3 and the BMW Series 1 have plenty to offer in this regard.

The most important step in the compact BMW Series 1 was the decision to adapt the extremely agile châssis of the BMW M3.

post-913-011068000 1298214868_thumb.jpgAluminium parts of the BMW 1 Series M Coupé's châssis.

“Despite the small wheel base on light weight, the basic coordination did not take very long,” remembers BMW M châssis expert Jürgen Schwenker.

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BMW M' s test center at the Nürburgring.

The BMW Series 1 M Coupé was finally brought to life on the Nürburgring’s northern loop. Here too the pace was fast. Hence there were only three development passes for the bearing springs before the spring rate and level were right. “However, in order to balance comfort and sportiness, you need to be clear from the start how the final result is to look,” explains BMW M engineer Jürgen Schwenker.

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Intensively tested an optimzied...

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Supplementary spring (yellow) of the BMW 1 Series M Coupé's châssis.

As well as stabilisers and dampers, it was also necessary to adjust the supplementary springs by means of the spring force and application points.

When it came to the development work on the northern loop of the Nürburgring, a number of différent teams were deployed in order to coordinate the various components, such as brakes, tyres, châssis and DSC.

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Variable M differential lock.

In countless comparative outings the various components were tested in différent variations until the perfect formula was found.

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Tests in sector "Hatzenbach" of the Nürburgring Nordschleife (image: BMW M3 GTS).

One of the key points for châssis development is the northern loop of the Nürburgring, for example the Hatzenbach curve, where a sharp right hand bend follows a hard deceleration. “If the car skitters about here and the wheels are in the air, then the ABS prevents the brake from working. The car simply continues to roll forward,” explains Jürgen Schwenker. The brake zone before the “Aremberg” bend and after the “Schwedenkreuz” is a similar point. “These are points where notice whether or not the distribution of the brake force is right.”

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Future drivers of the BMW Series 1 M Coupé can look forward to the result. After all the latest member of the M model family is a genuine BMW M for pure driving pleasure. The strongest capital letter in the world does not just stand for Myth, but is also a challenge for the automobile developers that they are happy to accept with all the passion they can muster.

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