Thursday, October 27, 2011

Secret power

The idea of ??a "hot" sedan (or wagon hatchback, etc.) irritate the minds of designers from different countries. In the USSR, these things do for the agencies, representatives of which were supposed to be capable of more than ordinary citizens. Moreover, these capabilities should not publicly display. And appeared GAZ-23, and then GAZ-24-24 with the motor and the transmission of "The Seagull" and "Samara" rotary engine. The latter were close analogue of foreign products of its kind - they even sold to the public. Foreigners were two reasons for the emergence of "super cars every day." First, some races are contests production cars. To protect them from the specially designed racing cars that are known to be capable of more, the rules have a minimum output of the model - usually a few hundred. That's the number and issue such special versions to a few dozen of them could get to the race. The rest are not fun without snapping fans. Second, in itself becomes a super-version of the mobile advertising other, less advanced versions of this model. See how it can go! Plus advertising opportunities on the use of expensive producer of advanced technologies. And because of the opportunities and price of the car it was still corresponding to that is very high, level, ownership and management of the business remain quite decent and affordable not too extensive fiber-off citizens. This category applies to the Audi RS 4. Its first generation appeared in 2000 and became the first product designed and manufactured "daughter" Audi - by quattro GmbH. Then, the base for the fastest serial Audi A6 chosen larger the previous generation. The new model - "back to basics' class and size. And at the same time a kind of revolution in the concept. Basically it is the engine, which is not traditional for older models Audi RS???. This time, quattro GmbH has decided that the issue of power is quite possible to solve without the aid of supercharging. Indeed, the new engine, developed based on the famous 4.2-liter V8, produces 420 hp A total of 30 less than the RS 6 engine. The main features of this engine - gasoline direct injection into the cylinder FSI and the increased speed. Fuel Stratified Injection through the cooling zone of the injection can increase the compression ratio and thus to avoid detonation. Here it is brought up to 12.5 - a very high figure for a "civil" gasoline engine, which ensures high efficiency of the engine. As well as high speed - the maximum power the engine produces at 7800 rev / min, and the highest torque - at 5500. In the range from 2250 to 7600 rev / min motor develops a torque of up to 90? of the maximum - that is under 400 Nm! So the dynamics of dispersal can not be doubted. With such a characterization is becoming very obvious need for a six-speed gearbox: under normal conditions - perhaps you can toggle through them one. Another change occurred in the all-wheel drive quattro: if he had distributed the time between the axles in the ratio 50:50, it is now 60 percent goes to the rear axle, although the mass distribution remains "in favor of" the front axle. If you slip one of the axes of the distribution point, as always, is automatically changed in favor of one that provided the clutch - up to 100 percent. During all this hard to believe at first (as well as to assess the ability of Schwarzenegger, if he wears a suit governor). Luxurious 18-inch wheels with tires 255 mm, squeezed into the flared wheel arches, plus a special bumpers, plus a spoiler and other minor details ... But the machine has remained relatively compact sedan. Inside constructively all about the same: striking only the wheel of irregular shape, with straightened lower part. And one more pure sports feature, which is now gradually coming into fashion again - engine start button. By clicking on the button, we hear quite mild roar, and a few kilometers convince us that under the hood - excellent well-behaved beast. As a representative of the distributor told one well-known brands, the drivers of the most dynamic version of the "it" cars have to be especially careful at traffic lights: you have to get up or first, or leave a decent gap before - so fast they take away. On the RS 4 to this problem is not noticeable even at the first setting off. Later, it turns out that for the sake of reducing the load on the clutch on the RS 4 provides an additional electronic engine control, which holds it slightly at the start. Also behave politely engine and transmission slow driving on forest roads in the vicinity of the landfill under the Pirelli Milan: motor is not "offended" at too low revs, the clutch does not require much effort, but the gears is not too short nor too long course - just enough to realize that you had already moved. Rolled out the usual way, we can already afford to relax a bit and then discover that the car behaves very carefully. And when we just taschimsya in the stream behind the truck, and when we decide to overtake him, he stepped "to the Polycom." There is more than simply note that under the hood we do not present an accountant type 1.6 l/102 hp motor that starts the range A4, but something far more serious. True, it is necessary to be careful when overtaking - the brakes are very effective, which may not be aware riding behind. Rejoice in the stability of the RS 4 and ligaments in the turns, we find ourselves on the highway. It seems it's time to check and additional features. They provide us button on the steering wheel Sport. Audi, unlike its main competitor does not promise a gain of several tens of horsepower when you turn the sport mode. It is simply changing the engine control program, and the most appropriate will not be too fresh air compared with the car: when you press the accelerator in this mode, the car takes off like the road and accelerates as if the subject thought the driver. It's a great feeling accompanied by a roar of changing the motor, which now resembles an eagle scream. How do we know it. After that, go back to boring ordinariness as something not very desirable, but there a sport mode and is not too annoying. Disable it only out of pity for others: perhaps not yet aware of what opportunities are on the label indicates the RS 4 and metallic mirror housings.

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