Gear ratio

Transmission includes in its composition transfermechanisms by means of which the torque passes to the driving wheels from the engine. The transmission consists of a clutch, ensuring the absence or presence of a connection between the box and the motor, drive shafts. An integral part is the gearbox itself. Through it, the supply and redistribution of torque and power to the drive shafts from the engine.

Most of the technologies that are used intuning of transmission, has passed the check in motor racing. It should be said that the transmission of any, especially a sports car, is the most important way to implement the dynamic characteristics of the engine. A machine with a relatively weak engine can become fast enough if the gear ratios are correctly matched.

In sports cars are usedunsynchronized (cam) and synchronized boxes. Depending on the type of switching, they are divided into sequential (providing for sequential selection) and conventional (H-scheme).

To carry out a simple (normal) movement on theroad cam-boxes are almost unusable. This is due to the fact that they make a lot of noise and have a relatively small resource, and are also considered "tough" when switching gears. In addition, their cost is incommensurably higher than the synchronized ones, and they need qualified and regular maintenance.

Synchronized boxes are different from boxesstandard gear ratios. Correct selection for the main pair of the primary shaft, gearbox and driven gears in the secondary shaft guarantees the coordinated operation of the entire transmission. The gear ratio is selected taking into account the moment and power characteristics of the motor. An important factor is the size of the wheels.

The gear ratio is the ratiothe number of teeth in the driven gear to the number of teeth in the drive gear. The higher it is, the faster the engine will twist the required speed. This will provide a faster speed dial. At the same time, there is a need for frequent switching. As a consequence, there will be a slight decrease in the maximum speed in the transmission.

There are several means to increase the accelerating dynamics of the machine.

You can change the gear ratio in the master pairreducer. For example, front-wheel drive vehicles "Vaz" of the tenth generation have, as a rule, standard figures. So, in the production process, the gear ratio is set from 3.7 to 3.9. The exception is Vaz 21103 (16V). Its gear ratio is 3.5. As practice shows, changing the main pair by 4.1 or 4.3 can turn the usual "eight" into a very dynamic car. Together with this, more often it is necessary to carry out gear changes. But, along with this, with any maneuver and at the traffic lights the car is the first.

Talking about the shifting gear, you can notand mention special tuning series. If you unscrew the engine quite strongly at the first, then when you switch to the second, the speed will drop dramatically. This is mainly due to too much difference between the gear ratios for the first and second gears. Tuning series contribute to a confident and even acceleration. In this case, the first transmission is slightly reduced (relative to the standard one). Dynamics with this option is somewhat worse, but at the same time it becomes somewhat "longer". The second will be close to the first. This will save you from the rather tangible "failure" that happens in the front-wheel drive cars "VAZ". The third and fifth gears are the same as the standard ones. The fourth is more approximate to the third, and the sixth - to the fifth, respectively.

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