Diesel engine chip tuning
Owners of diesel engines are wondering about the tuning of power units of this type at least the owners of gasoline engines. High-quality diesel tuning is possible, but should be taken into account, that increasing the power of a diesel engine is a more difficult task compared to gasoline counterparts. Engine tuning can be implemented in two directions. There is a so-called "iron" tuning, which involves direct changes in the design of the internal combustion engine. The second direction is the "software" tuning of the engine, which consists in installation of the additional control unit or change of parameters of the shaft computer of the diesel or gasoline engine.
We also recommend reading the article on fuel cards and chip tuning. In this article you will learn about the most important parameters, which ensure the operation of the engine in different modes.
The second tuning option, especially diesel chip tuning, is much more common. Let's answer, for which they decide to chip the diesel engine, as well as consider the advantages and disadvantages of chip tuning of a diesel engine. Particular attention should be paid to the resource life of chipped diesel and the consequences of chipping diesel engine.
Features of a modern diesel engine
The diesel engine of modern cars is a high-tech unit, which is much better than previous generations of motors of this type. The basis of the diesel engine invariably remains the scheme of fuel ignition in the working combustion chamber on the principle of compression. The biggest changes affected the technology of fuel supply to the cylinders.
Most current versions of diesel engines today have a Common Rail system, which is similar in principle to the effect of battery power systems. In a diesel engine, such a system is based on the mechanical pressure of fuel injection, which creates a pump. Common rail diesel engines have a huge range of options for efficient phase and injection timing changes, which is measured by the opening time of the electronic injector nozzle.
This Common Rail system provides fuel to the cylinders of the diesel engine in clearly metered phases. It is necessary to take into account the provision of the required pressure for any mode of operation of the diesel engine. Diesel power units also have a range of additional systems, controlled by the electronic control unit of the ECU (ECU) diesel engine.
The main task of quality chip tuning is to increase diesel power without significant damage to the resource of the internal combustion engine. The diesel engine is controlled by an electronic unit, which has a microprocessor and a basic program installed by the car manufacturer.
The ECU monitors the operation of the engine and other automotive systems. Data in the ECU come from many sensors, which constantly record the performance of the diesel engine in different modes of operation.
What is chip tuning: where does the power come from
General formulation and definition of chip tuning: chip tuning of the engine regardless of the type of fuel means or connection of a third-party separate control unit (chip), or making changes to the software (basic) stock firmware (full-time) ECU. The result will be a change in some values and parameters. Such an adjustment leads to a change in a number of characteristics, and the result will be a change in the behavior of the engine in different modes of its operation. In this article we will talk about chip tuning by the ECU firmware method.
Modern petrol and diesel engines for cars are made taking into account strict ecological requirements and norms. Compliance with the standards forces manufacturers to program the ECU in this way, that the motor worked in narrow limits, constantly balancing between power and ecology.
These features can be felt in the process of prolonged overtaking, when there is a sharp drop in traction after certain turns. The driver of a diesel car is forced to switch to a higher gear, since the ECU is not programmed to increase fuel supply in this mode. The presence of a catalytic converter further reduces the power characteristics of the internal combustion engine, etc.. P.
Quite obviously, that if we neglect environmental issues, then the potential of the diesel engine can be fully revealed. To do this, install a chip in parallel with the ECU or the electronic control unit itself is filled with a special program.
Chipping of the diesel or petrol engine allows to achieve improvement of dynamic characteristics of the car. For diesel engines, which have a significant indicator of torque, professional diesel chip tuning can significantly change the behavior and dynamics of the car.
Advantages and disadvantages of diesel engine firmware
Installation of the tuning unit in parallel with the ECU is not particularly difficult, self-flashing of the ECU is a rather complex operation without experience, software and hardware. Qualified specialists are engaged in programming of the control unit. Software chip tuning allows you to increase diesel power by an average of 15 — 25% without major alterations, which involves deep forcing of the diesel engine by replacing the components and parts of the internal combustion engine.
Advantages of diesel engine chipping
- the process of firmware of the diesel ECU is reversible;
- the price of high-quality diesel chip tuning is quite acceptable;
- ECU firmware does not take much time and can be adjusted;
- diesel chip tuning eliminates modifications to the intake and exhaust manifold;
- the ability to flexibly change the parameters of the ECU to adjust the program when changing;
- the stitched diesel engine pulls confidently without appreciable maximum losses;
- driving a car during daily operation becomes more comfortable;
- diesel chipping is able to increase the threshold of maximum speed and torque characteristics;
- chip tuning means no noticeable interference, which is important for the car under warranty;
Really, on the chipped diesel engine it is easier to accelerate and overtake. If the car is loaded, air conditioning and additional equipment are included, then the ECU firmware will make the selection of power in the engine less noticeable during overclocking. Chip-tuning allows you to adjust the engine in different modes, taking into account certain preferences of the driver, and you can reset to factory settings at any time. It is necessary to flash the diesel or petrol engine in that case, if superficial or deep "iron" tuning of the diesel engine at the level of mechanics has been realized.
Disadvantages of chipping diesel engine
- increase fuel consumption;
- the need to change oil and filters more often;
- noticeable reduction in the life of chipped diesel;
- premature failure of fuel equipment elements;
- the possibility of refusing the dealer to repair the engine and other components under warranty;
- increased demand for chipped diesel to the quality of diesel fuel;
Consequences of chip tuning of a diesel engine
There is an opinion among fans of diesel chipping, that once the manufacturer has a diesel engine with the same volume, but with different power, such a unit can be tuned without risk. An example is a diesel unit 1.9 TDI from Volkswagen. This motor has a boost from 90 to 150 l. With. Externally and structurally these motors are similar. Many believe, that the low-power 90-horsepower unit is artificially deformed for environmental reasons and has the potential to deliver 150 "Horse".
It does not, after all, the plant takes into account the rise in power and puts another turbine, intercooler, injectors. There are differences in the "iron", since the material of the crankshafts and the cast iron cylinder block itself is not the same. Engines with power 115 forces already have a higher quality grade of cast iron compared to the unit in 90 l. With. Logically, that engine block with indicator 150 l. With. will be even stronger, although all blocks are visually identical.
The increase in power when chip-tuning a turbodiesel or turbo gasoline is reduced to that, to supply more air and fuel to the internal combustion engine cylinders. The turbine is responsible for air supply (turbocharger), which requires an increase in pressure. The pressure will increase only due to the higher speed of the turbine. The production TDI has a boost pressure 1,05 there is, and has a speed of about 200 000 rpm. If pressure on the mark is required after chip tuning 1,25 there is, then the rotation of the impeller should be close 280 000 rpm.
In this mode, the turbine will not last long, since exceeding the specified speed causes the impeller blades to open under the influence of centrifugal force. These blades touch the body, which is located from them only in tenths of a millimeter, and completely destroyed.
The next problem of software chip tuning of the diesel engine is the capacity of regular injectors. Increasing the amount of air naturally requires pumping more diesel fuel. ECU tuners for diesel and gasoline internal combustion engines increase the duration of the moment of fuel injection.
The result is that, that the burning torch from the nozzle does not enter the combustion chamber, and what goes down the piston. There is a noticeable overheating of the pistons, edges or other parts of the piston melt. Excess fuel does not burn out in the combustion chamber and enters the soot filter. Filter, overflowing with excess fuel and soot, simply melts in operating conditions at temperatures above 1000 degrees.
Such melting of the soot filter occurs at the moment of sharp release of gas after driving at the maximum turns.. The filter detects a lot of oxygen, and the temperature rises unpredictably. If we talk about gasoline engines, then the catalyst similarly fails quickly.
A natural result of chip tuning and increased diesel engine power is an increase in transmission loads. The most vulnerable element is a two-mass flywheel. The point is, that the specified flywheel is precisely adjusted taking into account the standard allowable torque threshold. The increase in traction force causes the damper springs to be pushed to the limit, and the worst result is the complete destruction of the flywheel after a short operation of the car. Excessive power has no less detrimental effect on the clutch mechanisms and the checkpoint itself.
Let's summarize
Give an unambiguous answer to the question, whether to flash the diesel engine of a civilian car and then count on long-term operation, even experienced tuners will not be able to. Many owners have a diesel engine that runs normally after chipping. Experts explain this quite simply: such motorists do not increase the power after chip tuning even by half.
Not less than the number of "diesel", which increased the power of the diesel engine by chipping the computer and then operated the car at extreme limits, tested in their own experience the above and other negative effects of chip tuning of a diesel engine. In any case, The decision to do or not to do chip tuning of a diesel engine will be up to you!
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