THE BELL

There are those who read this news before you.
Subscribe to receive the latest articles.
Email
Name
Surname
How do you want to read The Bell
No spam

"Dakar-2018" is the last one in which engines with a volume of more than 13 liters are allowed in the cargo category. For most teams, this makes little difference, as most of the trucks have been equipped with smaller motors over the years. But for KAMAZ-master this change is significant - after all, the main engine for the team in recent years has been the Liebherr V8 engine with a volume of 16 liters.

It is these engines that are used in three out of four KAMAZ trucks at the current Dakar. The fourth, under the control of Dmitry Sotnikov, is equipped with an experimental 13-liter engine, an in-line "six", which should become the power plant that will be installed on KAMAZ trucks in the future.

The change of the engine for KAMAZ-master is far from news. Over the years of performances in rally-raids, the team has used power plants a wide variety of companies (KAMAZ, Cummins, YaMZ, TMZ, Liebherr), a variety of configurations (in-line "six", V8 and even V12) and a variety of volumes (from 11 to 25 liters). Vladimir Guba, technical director of the team, told us why KAMAZ-master used such large engines and why other teams preferred engines of much smaller sizes..

Vladimir Guba: The reason why most teams use 13-liter engines is simple: all the leading teams in the world of rally-raids put on their trucks motors that are used in circuit races, in the European Truck Racing Championship. Ring trucks have strict regulations - 13-liter, 10-cylinder, single-stage supercharging. These are fairly advanced engines designed specifically for racing. There are MAN, Iveco, Mercedes teams there. Team Tatra in rally raids uses the same engine on their trucks as is used on the ring trucks of the Buggyra team. Therefore, in this regard, it is somewhat easier for them. They take a 1200 power engine Horse power and a moment of 6000 N * m, and deforce it to the level of 1000 horsepower, and 4500 N * m.

But this is a special product. We can't do that, we don't have our own truck racing team. We tried to work with the Buggyra engine, but we cannot build trucks on its basis, because we are a professional team, and our advantage is that we thoroughly know all the components of our car. We must be able to diagnose, test, repair them in any conditions. If we take a ready-made node, then, as a rule, we do not know what is inside it, we do not have access to the program, we do not even have access to diagnostics. That is, we are completely and completely tied to the services of the supplier. It doesn't suit us.

Therefore, we act in the opposite way - we take the production engine as a basis. This was the case with Liebherr - we took a serial engine, which was used on special equipment, and a separate modification was used on MAN trucks. But this is a serial engine with a capacity of 500 kilowatts, 700 horsepower. We forced it, brought the power up to 1000 horsepower. Now we are doing the same with the 13-liter Cummins engine. We took an engine with a capacity of 520 horsepower, and we are trying to get more than 1000 horsepower from it, we double the torque.

Cummins engines are also installed on serial KAMAZ trucks, but small, 7-liter ones. Recently launched the production of 9-liter. That is, in terms of volume, they still occupy the lowest rung in the hierarchy of these power plants. We're using a 13-liter engine. This is not our first experience with Cummins, they have been on our trucks, including racing ones, back in the 90s. And already in 2007-2008, they used a 15-liter Cummins engine, with a twin turbocharger. He did not show himself very well, which once again confirms the inefficiency of working with someone else's motor. It was made to order, and, of course, the manufacturer lays in a certain reserve for the client's engine, so that, God forbid, what does not happen. Therefore, its characteristics were not the best. However, we are now back to the Cummins block. But we are already developing everything ourselves, and we strive to approach the limit of its capabilities.

Now we are working with Cummins on such terms: we buy engines of special configuration from them, they help us with spare parts and some information. But we conduct all developments, all changes, all adjustments, all tests ourselves. Why Cummins? This choice was made for the simple reason that, according to the regulations, these engines must be mass-produced and installed on commercial trucks. So far, KAMAZ does not have such an engine, and waiting for it to appear and starting work only after that is a waste of time. Our Science and Technology Center (STC) is currently working on a version of the 13-liter engine with very similar performance. We are working proactively, and by the time its serial production begins, we will be ready. I think we will be able to quickly transfer all the experience to our domestic engines, and even then we will start driving our engines.

Despite the fact that on our cars and on the trucks of our competitors there were very different sizes, their power was about the same. Why? Among other things, it is limited to reasonable limits. Maximum speed on rally-raids it is now limited by the regulations at the level of 140 km / h. For such a speed, in general, 1000 horsepower is quite enough. Excessive power is a load on the transmission, these are more complex operating modes, temperature, pressure, and so on.

Indeed, for many years KAMAZ-master has used a large-volume engine, 18.5 liters. We even tried the Yaroslavl 24-liter 12-cylinder once. But he was quickly abandoned because he breaks everything. Excess power. So we returned to the 18.5-liter, Yaroslavl, or now Tutaev engine. But this motor is quite old development.

It is not bad in design, but all-aluminum. The main thing is that it has aluminum heads. And they do not allow reaching high levels of forcing. Everyone has modern motors already cast iron heads. Therefore, in order to provide the same power, the degree of forcing was much lower - with an aluminum head it is impossible to achieve the same pressures, the same temperatures. Therefore, at the output, we received the same indicators, but with lower specific indicators. With less heat stress. Less stress on mechanical assemblies and parts.

But then the maximum permitted engine displacement was reduced, and for the last couple of years the trucks have been powered by 16-liter Liebherr engines. It has approximately the same parameters as the Yaroslavl motors. We tried to reach higher power ratings, but V-engines have one feature - they have two connecting rods on the same connecting rod journal. And the width of the earbuds is small enough, this is the most tense place. That is, we reach a certain point - that's all. Yes, in theory, turbocharging and the fuel supply system allow you to get more torque, more power. But it is no longer possible to increase it mechanically. Because the earbuds, even the best ones, don't hold up. Due to the lower level of forcing, the reliability was increased, and the service life of these engines was increased.

Now we are switching to an inline 6-cylinder engine, there is no such limitation. But there are others associated, for example, with a higher thermal intensity. If our big engines, our "eights", had an exhaust temperature of about 800 degrees, now it has increased to 900 degrees. This is already significant. That is, such motors require a different approach, the use of other, more expensive materials.

Of course, the smaller engine has its advantages. In terms of weight, the 13-liter engine is 25 percent lighter. But on the other hand, the inline engine is longer and taller. That is, the V-shaped engine is about two cylinders shorter, and due to the camber it is lower, therefore, under new motor we had to design the entire car from scratch. Changed the position of the engine, the location in height, along the length. The position of the cab changed, because we could no longer use the previous one, above the engine - the cab rises too high. Therefore, we looked for new options to accommodate the masses as efficiently as possible without increasing the height of the center of gravity. So, as usual in sports, there is no concept that allows you to always win - everything depends on the search for compromises.

The main power plants of the KAMAZ-master racing trucks

A car Years Engine Configuration Volume Power Torque
KAMAZ 4310 S 1988-1995 KAMAZ-7403 Diesel, turbo, V8 10.85 l 305 h.p. 1050 Nm
KAMAZ 49251 1994-1995 Cummins N14-500E Diesel, turbo, L6 14.01 l 520 h.p. 1700 Nm
KAMAZ 49252 1994-2003 YaMZ 7E846 Diesel, turbo, V8 17.24 l 750 h.p. 2700 Nm
KAMAZ 49255 1997-1998 YaMZ 3E847 Diesel, turbo, V12 25.86 l 1050 h.p. 3724 Nm
KAMAZ 49256 2001-2002 YaMZ 7E846.10 Diesel, turbo, V8 17.24 l 830 h.p. 2700 Nm
KAMAZ 4911 2002-2007 YaMZ 7E846.10 Diesel, turbo, V8 17.24 l 850 h.p. 2700 Nm
KAMAZ 4326 2007-2013 YaMZ / TMZ 7E846.1007 Diesel, turbo, V8 18.47 l 850 h.p. 2700 Nm
KAMAZ 4326/2013 2013-present Liebherr D9508 Diesel, turbo, V8 16.16 l 920 h.p. 4200 Nm
GKP * 2015-2016 Caterpillar C13 (Buggyra) Diesel, turbo, L6 12.5 l 980 h.p. 4000 Nm
KAMAZ 4326/2017 2017-present Cummins ISZ-13 Diesel, turbo, L6 13 l 980 h.p. 4300 Nm

* - a truck with a bonnet configuration, it was not used on rally-raids "Dakar"

Specifications KamAZ-4911 :

KAMAZ model 4911 EXTREME - special vehicle (quick response)

A special vehicle with a 4x4 wheel arrangement is designed for emergency delivery of goods to hard-to-reach areas on roads with an axle load of up to 78 kN (8 tf), as well as on dirt roads and rough terrain.

The car is special, designed for quick response and carrying out transport works special purpose with appropriate training by the customer. The listed vehicles and chassis are suitable for operation in climatic zones with air temperatures from -30 ° to +50 ° C.

Specifications

Carrying capacity, kgf: 4000

Curb weight, kgf: 7250

Gross vehicle weight, kgf: 12000

Distribution of the load on the road from the mass of the equipped vehicle, kgf:

through the front axle: 5000

through the rear axle: 2250

Distribution of road load from gross vehicle weight, kgf:

through the front axle: 6000

through the rear axle: 6000

Track, mm: 2100

Maximum speed in top gear on hard-surfaced roads, km / h of equipped vehicle no less: 165

Maximum rise, overcome by a car of full weight,% not less (degrees): 60 (31 °)

Overcoming vertical wall, height not less, m: 0.55

Allowable roll when driving on a slope not less: 22 °

Acceleration time of equipped car, s

up to a speed of 60 km / h: 6.8

up to a speed of 100 km / h: 16

on the way 400 m: 20.6

on the way 1000 m: 36

Acceleration time of the equipped vehicle in the highest gear in the speed range, from 60 ... 120 km / h: 25

Runout distance, m

from a speed of 50 km / h: 732

from a speed of 100 km / h: 1919

Control fuel consumption per 100 km of track when driving at full load and speed of 60 km / h, l: 30

Estimated fuel consumption per 100 km of track in extreme operating conditions: 82

Vehicle in store not less, km: 1000

The depth of the ford with a hard bottom (taking into account the natural wave) at the nominal tire pressure, m: 1.7

Braking distance (m) when driving at a speed of 40 km / h s full weight when applying the working brake system, m: 17.2

The smallest turning radius along the axis of the track of the front outer relative to the center of rotation of the wheel, no more, m: 11

Outside overall radius of K. turn: a / m along the front buffer, no more, m: 11.8

Power point

Model: 7E846

Type: 4-stroke

Number of cylinders: 8

Arrangement of cylinders:: U-shaped. camber angle 90 °

Diameter of cylinders and piston stroke, mm: 140x140

Working volume, l: 17.24

Engine weight, kg: 1380

Rated power kW (hp): 538 (730)

at revolutions (min): 2500

Maximum torque Nm, (Kgsm): 2700 (275)

at revolutions (min): 1300-1400

Minimum specific fuel consumption, g / kW * h: 211

Number of valves per cylinder: four (two intake, two exhaust)

Air supply system

Air cleaner: one dry type with two filter elements

Exhaust system

Muffler: two

muffler of direct flow type with metal hose

Lubrication system

Mixed, wet sump.

Oil cooling in an oil-water heat exchanger.

Cooling system

Liquid, closed type, with forced circulation of the coolant.

Double radiator, tubular-tape type of the "VENR" company, equipped with a fan casing

and an expansion tank.

The thermal mode of the engine is controlled by a thermostat and viscous

fan clutch. Fan diameter - 730 mm. Intermediate aftercooling

The air-to-air type has two blocks mounted on the sides of the vehicle behind the cab.

Free-flow cooling through air guides and electric fans (4 pcs).

Transmission

Clutch: single-plate "Fichtel und SАСНS", dry, friction type. Driven disc with a diameter of 430 mm. The clutch drive is hydropneumatic.

Gearbox: 16S251 by "ZF" mechanical 16-speed with synchronizers in all gears.

Gearbox ratios:

H 1B: 13.80, 11.54

H 2B: 9.49, 7.93

H 3V: 6.53, 5.46

H 4V: 4.57 3.82

H 5V: 3.02 2.53

H 6V: 2.08 1.74

H 7V: 1.43 1.20

H 8V: 1.0 0.84

N ZHV: 12.92 10.80

Transfer case: "STEYR" VG2000 / 300

RK gear ratios:

Cardan transmission consists of 4 cardan shafts... Rigid cardan joints with crosspieces on needle bearings, tubular. For the transfer case and for the rear axle, one cardan shaft, on the front axle there are two propeller shafts, one of them with an outboard bearing.

Bridges

All are presenters.

The main gears of all axles are central double with bevel gears with circular teeth and helical helical gears. Ratio main gears - 3.55 Bevel differential with 4 satellites, with forced blocking. The axle shafts are completely unloaded. Half-shafts front axle have joints of equal angular velocities

Chassis

Frame: longitudinal channel-type spars of constant cross-section are connected by stamped-welded tubular cross-members. A buffer and towing forks are installed in front of the frame. Rear frame: two towing eyes.

Suspension: front - dependent, on two longitudinal semi-elliptic 14 leaf springs, working in conjunction with 4 hydropneumatic springs with built-in shock absorber valves.

rear - dependent, on two longitudinal semi-elliptic 10 leaf springs, working in conjunction with 4 hydropneumatic springs with built-in shock absorber valves, with a longitudinal reactive bar.

Wheels: disc wheels with a removable bead ring with a split lock ring with toroidal landing flanges, stamped from aluminum alloy in sizes 10.75 - 20, allowing tire change without removing the wheel from the hub.

Tires: tubeless radial variable pressure. Tire size 14.00 R20 "М1СНELIN". Air pressure in tires - nominal 5 kgf / sq. Cm, adjustable up to 1 kgf / sq. Cm, depending on road conditions.

Tire pressure control system: centralized, separate for front and rear stops, wheel valves and sealing cuffs in the wheel trunnions. Electro-pneumatic control.

Front wheel installation parameters

Camber angle: up to 1

The longitudinal angle of inclination of the kingpin: plus 6 °

Transverse angle kingpin tilt: plus 6 °

Toe-in (at the ends of the brake drums), mm: 1-2.5

The maximum angle of rotation of the steered wheels of the inner (relative to the center of rotation): 30 °

Steering

Steering gear: firm ZF 8098 Steering gear ratio 18.3. The steering shaft is equipped with two constant velocity joints

Power steering pump: ZF 7674 vane vane, left-hand rotation, with internal valves limiting the max. pressure and performance. Max. productivity - 20 cm cube. per minute at a maximum pressure in the hydraulic system of 100 kgf / sq. s


Brake system

Service brake system: two-line, with separate pneumatic drive for front and rear axles (bogie). Drum-type brakes with internal pads for all wheels.

Brake drum diameter, mm: 400

Brake shoe lining width, mm: 220

Parking (spare) brake system: the executive bodies of this system are the working brakes of the wheels rear axle, actuated by means of pre-compressed springs of brake chambers. The parking brake system is driven pneumatically using a manual control valve from the cab.

Devices for pneumatic brake drive: two-cylinder compressor f. WABKO Water separator, pressure regulator with safety valve, air cylinders, two-piece brake valve, double safety valves, single safety valves, test outlet valves, front wheel brake chambers and rear axle air spring chambers, relay valves and dual-line bypass valves.

Electrical equipment

Electrical system: single-wire, with a rated voltage of 24V direct current... The negative terminals of the power supply are connected to the vehicle battery switch.

Generator: alternating current... Rated power - 2520 watts.

Rechargeable batteries: two 6ST-190TR, each with a voltage of 12V and a capacity of 190 A hour

Cab and platform
Cabin: triple, all-metal, welded. Fastening of the cab to the frame - 4-support. The support is a bracket, into the body of which rubber cushions are inserted, which soften vibrations that are transmitted from the frame to the cab
Platform: Tubular frame, sheathed in aluminum sheets, with liftable side and rear covers, shelving units, cradles and built-in drawers.

Platform area, sqm: 9.2

Platform volume, cubic meters: 15.2

Number of fuel tanks: 2

Fuel tank capacity, l: 450 each

Engine cooling system, l: 40

Engine lubrication system, l: 40

Transmission housing, l: 13.5

Carter transfer case: 8,4

Front and rear crankcase: 12

Rear axle housing, l: 12

Vehicle performance data -

from the official website of the KamAZ-Master team http://www.kamazmaster.ru/

Everyone already knows for sure the story that the requirements for engine displacement for "Dakar" racing trucks were constantly changing and it was decided to limit them at 13 liters (now 16-liter ones can be used). KAMAZ-master began to test several different variants of engines with such volumes, and eventually settled on 13-liter American Cummins QSZ13 engines, assembled under license ... in China. When we were at the team's base in December 2016, we just caught the moment when such a unit was tested on a motor stand.

Technical characteristics of KAMAZ Master 2018

MODEL KAMAZ-4326, GAS-DIESEL
ENGINE CONSTRUCTION Model Liebherr D9508
Type of diesel with turbocharging and intercooling
Working volume / capacity of gas cylinders 1000 l. / 356 l.
Max. power in kW (hp) / at rpm 1 - 700(950)/2400
Arrangement and number of cylinders V-shaped, 8
Fuel consumption per 100 km, diesel / gas asphalt / off-road: 60-120 l 20-30 l / 10-15 cbm m 60-120 l / 25-50 cub. m
CLUTCH ZF MFZ430
Type of frictional, dry, single-disk
Drive unit hydraulic, remote
TRANSMISSION ZF 16S251
Type of mechanical, synchronized, 16-speed
TRANSFER CASE ZF VG2000
Type of mechanical, 2-stage
SUSPENSION
Type of dependent, spring
Type of elements used small leaf spring, gas-filling shock absorbers
BRAKE SYSTEM Pneumatic drive with electronic control(EBS)
Brake type drum
WHEELS AND TIRES
Wheel type disc aluminum with pressure regulation system
Tires Continental, 14R20 164 / 160K HCS
About gas-fueled KAMAZ The refurbished EcoGas sports truck is equipped with new engine, the working volume of which is 16 liters. This is 2.3 liters less than the previous version of the car. Despite the fact that the maximum power of the truck was reduced by 5%, the torque remained at the same level - 4000 Nm. The gas-diesel engine is turbocharged with intercooled air, which increases engine power while reducing fuel consumption by increasing the amount of air supplied to the cylinders. Has undergone modernization and gas equipment sports KAMAZ: on new version equipment of the third generation was installed, which made it possible to reduce the total weight of the car. Fuel The truck is equipped with four 89-liter cylinders of the Polish company Stako with EcoGas fuel. In total, they hold 80 cubic meters of natural gas, which is enough for a race for about 340-350 km. The cylinders are made of aluminum (5 mm thick), outside - composite materials (Kevlar) 10 mm thick. One empty cylinder weighs 35 kg. The main fuel tank holds 1000 liters of diesel fuel. The vehicle has a range of almost 1,500 km, which is 500 km more when using only diesel fuel. When operating in the gas-diesel cycle, the fuel mixture consists of 70% diesel and 30% EcoGas supplied to the intake manifold. Since the ignition temperature of natural gas is almost twice as high as that of a diesel engine, an air-gas mixture is first fed into the combustion chamber at the intake stroke, which ignites at the end of the compression stroke, at the moment of injection of the main (so-called ignition) portion of diesel fuel. This scheme has a number of advantages. When natural gas runs out, the engine continues to run as usual, that is, exclusively on diesel fuel... And unlike converted to work only on gas diesel engines, there is no need to remove the standard fuel equipment and replace it with an ignition system with candles instead of injectors.

Cummins engine, 6-cylinder, in-line, can be used both on bonnet and bonnet racing KAMAZ

This stand allows simulating a wide variety of operating modes, including simulating real operation, setting increased loads, etc. So, the testers liked how the "base" Cummins QSZ13 engine behaved in difficult modes. And it was decided to do it forcing, and then test it in racing conditions. My colleague avalanche already this fall visited the base and found out that so far this is only on the car of Dmitry Sotnikov's crew. Others continue to use the 16-liter Liebherr, which will soon be outlawed.

A short question reminder for those who missed it. Let me remind you that in 2012, the V8 TMZ-7E846.10 engine (Tutaevsky Engine Plant), with a working volume of 18.5 liters, with a capacity of 850 hp, was used for the last time on top-end KAMAZ-master trucks. and with a torque of 2700 Nm, with a curb weight of the truck of 9300 kg. The team liked the engine, it was reliable, albeit outdated.

Characteristics of the TMZ-7E846.10 engine

Engine type: diesel, 8-cylinder, 4-stroke with V-shaped arrangement of cylinders (camber angle 90 °), direction of rotation crankshaft- right, with turbocharging, with intercooling of charge air. The cylinder diameter is 140 mm, the piston stroke is 140 mm. The cooling system is liquid, the water-oil radiator is built into the engine. Installed on: Engine for sports cars KamAZ-Master and MAZ-SPORT participating in rally-raids.

This is how the TMZ engine looks at the stand. Recently, it was used in the car of the crew of Sergey Kupriyanov in the Africa EcoRace and Silk Way raids in a gas-diesel version. But now the gas-diesel machine will go to Liebherr

That's how TMZ engine looks at his workplace

Since 2013, the technical requirements have changed. The maximum working volume was not to exceed 16 liters. Then an option was found with the Swiss-German tractor power unit Liebherr D9508 V8. Moreover, its refinement to racing conditions was carried out directly in Naberezhnye Chelny, on the basis of the team. As a result, the official characteristics of KAMAZ 4326 with it are as follows: a working volume of 16 liters, a power of 920 hp, a torque of 4000 Nm, with a curb weight of the car of 8900 kg. Although, according to the employees of the team, they had to suffer with "Liebherr", and at first they did not like its reliability, but then they were able to bring it to the required condition. And again the team from Tatarstan began to win, although it became more and more difficult to do it, the character of the track in “Dakar” also changed, towards simplification. In 2016, the first place was lost, but already in 2017, Chelny residents were able to return to the top and win again!

In the meantime, the organizers of the "Dakar" decided to again limit the volume of engines for the 2017 race, this time - no more than 16 liters. The team again had to invest in redesigning the Liebherr engine so that the reduction in displacement did not significantly affect performance. The next step - it was decided to allow trucks with a maximum of 13-liter power units... In this case, it turns out to be overboard Liebherr, in the revision of which more than one million dollars were invested. By the way, it is Liebherr specialists who help in the development of a new line of six-cylinder in-line KAMAZ P6 turbodiesels for serial KAMAZ vehicles. On a serial engine, they promise to remove up to 750 horsepower from a working volume of 12 liters. But for racing conditions it is not yet used. I cannot say - either he is not very suitable for this, or he is simply not ready yet. In general, there will be more than once news on the motor topic from the KAMAZ-master mill, just have time to follow.

Last year, KAMAZ-master brought both a bonnet and a cabover car to the Kazan City Racing 2016 big auto show. This year, the bonnet is not particularly bright, it turned out to be damp, and people do not like using the cab from Mercedes benz Zetros. This is no longer KAMAZ, they say P.S. In general, the tendency to reduce engine displacement is ubiquitous in top motorsport tournaments, take Formula 1, world rallies and rallycross, etc. This is a general trend, and the point is not only in the endless victories of KAMAZ-master in Dakar. Another thing is that when drawing up new technical regulations, there should be some intelligible terms - how long they should be announced, how long they will be in effect, etc.

Say what you like, but extreme conditions for racing, almost for survival, love Russian cars.

I remember that at one time Finnish racers triumphantly marched along the African deserts - the tracks of the Paris - Dakkar rally - exclusively on the Russian "Niva". It is true that what the "serial" monster from Naberezhnye Chelny KAMAZ 4911 did at these races cannot even be compared with the victorious procession of the Togliatti car.

According to the FIA ​​regulations, only production models can participate in the rally.

Imagine an eleven-ton colossus traveling at over one hundred and eighty kilometers per hour. Imagine how it accelerates to “hundreds” in just ten seconds. Imagine it flying through the air (athletes skillfully use any natural elevation as a springboard) and landing on all four wheels without a “breakdown” of the suspension and this with eleven tons of curb weight.

Anyone can buy a civilian version of this monster - the price tag starts at $ 250,000

If you can imagine this even approximately, then consider - you have a rough idea of ​​what it is - the pride and glory of the domestic automotive industry KAMAZ 4911 Extreme. Plus - permissible operating mode in “ temperature range”From minus thirty to plus fifty degrees Celsius.

No magic, no fiction

Usually, when talking about this legendary machine, they go astray to describe its capabilities, accompanied by many exclamation marks. As if an eyewitness was faced with a clear manifestation of either a technical miracle, or met aliens who possess clearly unearthly technologies.

In fact, there is no magic here, as well as science fiction. And for all the unique capabilities of the monster from Naberezhnye Chelny, there is a clear and scientifically grounded explanation - the technical characteristics of KAMAZ 4911.

The YaMZ-7E846 engine is the heart of KAMAZ 4911

And they look like this. The V-shaped "eight" produced by the Yaroslavl Machine-Building Plant (YaMZ) has a volume of more than seventeen thousand cubic centimeters and develops a capacity of about eight hundred horsepower.

By the way, the engine for serial "SuperMAZ" served as the basis for the motor.

In addition, additional agility is added by two Borg Warner turbochargers and four valves, two inlet and two outlet, per cylinder. Total, on this engine - thirty-two).

Fly so fly

And the fast KAMAZ is equipped with hydropneumatic shock absorbers from the army BRDM, which are designed for parachute landing of multi-ton armored tracked vehicles, hence the fantastic “volatility” of a multi-ton truck. And besides, to ensure a smooth ride in the suspensions, springs extended to almost two meters are used, so huge jumps during the rally do not harm either the car or the crew.

Wheel formula 4x 4, accompanied by a sixteen-speed mechanical box ZF and Steyr hand-outs with blocking center differential give the truck fantastic cross-country ability. Since 2003, KAMAZ has climbed the podium in almost all world heavy-duty cross-country races.

Everything is superlative

If to the above we add a lightweight supporting frame, equipped with inserts made of composite materials, so that the rigidity and strength of the frame structure does not suffer, and the number of spring leaves is fourteen in the front and ten in the rear, then it turns out approximate description a car that consistently wins the world's most prestigious rallies.

True, in "combat", sport mode monster consumption 800 - strong engine fluctuates somewhere in the range of hundreds of liters per hundred, but for big sports, you must agree, in particular. It is not for nothing that the car is equipped with a coupled fuel tank with a total capacity of one thousand liters.

The glorious sporting past and present of the Master - Kamaz team is inextricably linked with the periodically improving and recyclable production models of the automobile plant located in Naberezhnye Chelny, and KAMAZ 4911 Extreme is a striking representative of the family of cars that literally lifted the Russian rally team into the empyrean world sports unattainable for rivals. ...

Civil version of the racing version - KAMAZ 4911 Extreme

Since the end of the eighties of the last century, Russian trucks KAMAZ is among the undisputed world leaders in the most prestigious and famous races. And finally, an anecdote (they say that the employees of “Master Kamaz” really love to tell the visitors in all seriousness): during the crash tests of the KAMAZ 4911 Extreme, the concrete wall, against which it was planned to break the front of the car, began to quietly crawl away from the test bench.

Racing is a very exciting competition. And the rally with the participation of trucks is an event that must be watched at least once in a lifetime. The stages are considered the most prestigious of such a world marathon. Many year after year the amazing Russian “car” amazes - let's get to know it better!

KamAZ "flying"

Model 4911 Extreme is the legendary KamAZ that participates in the Paris-Dakar rally, as well as in the Silk Way. This "graduate" of the Kama Automobile Plant located in Naberezhnye Chelny (Tatarstan) is not only a sports truck. It is designed to urgently deliver goods, following highways from axial load up to 78 kN, on dirt roads and rough terrain. The machine can be operated in various climatic zones at a temperature of +50 ... -30 ° C.

Why was KamAZ from "Dakar" nicknamed "flying" by the fans? The machine lifts off the ground with amazing ease and grace, like a giant bird. By changing the frame, the design of the springs, updating the fragrances, the truck lands softly on the wheels when jumping even from great heights without harming the crew.

The first flying truck race took place in 2003. Then, at the Telefonica-Dakar rally, the car took first and third places. More than once KamAZ 4911 Extreme became the winner of Cappadocia, Khazar Steppes, Desert Challenge, championship and Cup of the Russian Federation. And after the Dakar races, the modernization and refinement of the car always followed.

The French company "Eligor" and the Russian plant "Electron" (Kazan) produce 1:43 scale models of this model of the sports KamAZ.

Dakarovskiy KamAZ: technical characteristics

Let's present the technical characteristics of a heavy truck in the table.

Options
Full mass11.5 thousand kg
Curb weight10.5 thousand kg
Wheel formula4x4
Wheelbase4.2 m
Front / rear track2.15 m
Length7.3 m
Height3.5 m
Width2.5 m
Engine
Variety of modelYaMZ-7E846
Type ofDiesel turbocharged engine
Power at 2500 rpm552 kW / 750 HP
Engine locationV-shaped
Number of cylinders8
Engine volume17.2 l
Tires and Wheels
Tire typePneumatic, using pressure regulation
Wheel typeDisk
Tire size425/85 R21
Transmission
Variety16-speed, mechanical
Cabin
TypePlaced above the engine
General set of characteristics
Highest speed165 km / h
Overall outer turning radius11.3 m
Climbing angleNot less than 36%
Fuel consumption per 100 km under the condition of full load, following off-road with an average speed of 120 km / h100 l
LayoutFour-wheel drive, front-engine
Production yearsfrom 2002 to the present
ClassT-4 sports truck

After we found out technical characteristics KamAZ from "Dakar", let's get acquainted with the team that drives this car in the rally.

KamAZ-master team

KamAZ-master is a Russian team of race car drivers whose specialization is participation in rally-raids. Performs only on KamAZ trucks. A constant participant in the Dakar rally (the former name of the Paris-Dakar rally) - Russians have become its winners 14 times!

The team's birthday is July 17, 1988. Its composition can be said to be stellar - eight masters of sports of the international category, five winners of the World Cup. KamAZ-master is rightfully considered the strongest team in its class. As well as the excellent one from Dakar.

The permanent leader and mentor of the team is Semyon Yakubov, an international master of sports. In the period 1996-2002. the pilot of "KamAZ-master" was the well-known Vladimir Chagin. He has seven victories in the Dakar races, two World Cups, and the title of "Best Russian Racer - 2003". The team's sponsor is also serious - VTB Bank.

Results of the rally "Dakar-2017"

The last Dakar took place in Bolivia. Many participants recognized it as the most difficult in the history of the rally. And the fault is landslides, rains, and sat down. But this did not prevent KamAZ from showing itself in the Dakar-2017 better side... The KamAZ-master team returned from the competition, as in many previous years, a champion:

  • The first among the sports trucks was the crew of E. Nikolaev, E. Yakovlev, V. Rybakov.
  • KamAZ of D. Sotnikova, I. Leonova, R. Akhmadeeva came second to the finish line.

"Gold" and "Silver" - awards of KamAZ in the "Dakar" of the current year. Both the sports truck itself and its legendary team have reaffirmed the title of the best in the world rally-raid. However, racing is not the only path of the "flying" car. Among other things, it can be used for emergency delivery of goods - a car, jumping on springs, will sweep off-road like an arrow.

THE BELL

There are those who read this news before you.
Subscribe to receive the latest articles.
Email
Name
Surname
How do you want to read The Bell
No spam