How to increase engine power

Almost every car owner at least once in his life thought about how to make his car more powerful. Sometimes the reason for the question is not the desire to drive. Sometimes the situation on the road may require more “agility” from the car. And can not always save the brake pedal. For example, when overtaking or when you are late for some event.

Before considering ways to increase engine power, it is important to understand: this process is achieved in only two ways. The first is to increase fuel consumption. The second is to improve combustion efficiency.

So, to improve the efficiency of ICE in the following ways:

• increase engine capacity;
• increase the compression ratio of the fuel mixture;
• perform chip tuning;
• modify carburetor or throttle.

Let's consider all methods in more detail.

Increase working volume

The easiest method in many situations - the more the better. Therefore, many self-taught mechanics solve the issue of power by increasing the volume of the internal combustion engine. This can be done by squandering the cylinders. Deciding on this procedure, it is worth considering several points:

1. increase the diameter of the cylinders should be performed by a specialist;
2. after tuning, such a car will be more voracious;
3. after boring the cylinders will have to change the pistons with rings.

The volume of the engine can also be increased by replacing the crankshaft with an analog with a larger amplitude.

In addition to the waste of repair work, this method has a couple of disadvantages. Altered torque can adversely affect the transmission. The car will become more responsive when you press the gas pedal. However, the efficiency of the motor will become lower.

Increase compression ratio

The degree of compression is not the same as compression. Although the description of the terms are very similar. Compression is the pressure that is created in the combustion chamber when the piston reaches its highest point. And the compression ratio is the ratio of the volume of the entire cylinder to the combustion chamber. It is calculated using a simple formula: V cylinder + V chambers, divide the resulting amount into V chambers. The result will be a percentage of compression of the original volume of the fuel mixture. Compression only shows whether the nodes that contribute to the efficiency of combustion of the mixture (ring or valve) are working.

The purpose of the procedure is to reduce the volume of the combustion chamber in the cylinders. Motorists do this in many ways. Here are some of them.

1. Using the cutter, the lower part of the cylinder head is evenly removed.
2. Use a thinner cylinder head gasket.
3. Replace flat-bottomed pistons with convex counterparts.

The benefits of this method are twofold. Firstly, the engine power is increased. Secondly, fuel consumption is reduced. However, this procedure has a drawback. Since the amount of mixture in the combustion chamber has become smaller, it is worth considering to switch to fuel, whose octane number is slightly higher.

Chip tuning

This method is only suitable for vehicles with fuel injection systems. This option is not available to carburetors for a simple reason. They supply gasoline using mechanical devices. And the injector is controlled by an electronic control unit.

To perform this operation, you must:

1. proven software;
2. skill in making settings;
3. a program suitable for the characteristics of the motor.

There is no need to talk about the benefits of chip tuning and its shortcomings. This issue is discussed in detail in article about motor chipping. However, the owner of the car must remember: any change in the electronic control settings of the engine systems can disable it.

After flashing the control unit, the motor can operate with greater efficiency. In some cases, gas mileage is even reduced. But at the same time, the power unit develops its resource faster.

Modification of carburetor or throttle

Another way to increase engine efficiency is to upgrade the throttle, or MD tuning. Its purpose is to "refine" the process of mixing gasoline and air. To complete the work you will need:

1. drill or screwdriver;
2. nozzle for a drill (with a diameter of 6 mm.);
3. fine sandpaper (grain size from 3000 and smaller).

The goal is to make small recesses (up to 5 millimeters deep) in the area of ​​the closed throttle on the walls. Sandpaper must remove the burrs. What is the peculiarity of such tuning? When the shutter opens, air does not just enter the chamber. Thanks to the selected chamfers, a small vortex is created in the chamber. The enrichment of the fuel mixture is more efficient. This leads to high-quality combustion and increased efficiency in the cylinder itself.

Effect

Not all power units respond appropriately to such a refinement. Some ECUs are equipped with an air sensor, which regulates the fuel supply from its amount. In this case, “deceive” the system does not work. However, in most cases, modernization reduces consumption by up to 25 percent. The savings are due to the fact that to increase power there is no need to press the gas pedal to the floor.

Of the disadvantages of such a tuning is its great sensitivity to pressing the accelerator. The problem is that the minimum opening of the shutter in the initial version creates a small gap. In addition, in addition to the vortex, more air immediately enters. Therefore, the slightest pressure on the gas creates a feeling of “afterburner”. This is only in the first effort. The further course of the pedal is almost identical to the previous settings.

Conclusions

The article lists only some of the options for increasing engine power. There are still improvements using a zero air filter, boost, thermostat settings and unlock the speed limiter.

Each method has its advantages and disadvantages. Therefore, the motorist himself must determine what risks he is ready to take.

Common questions:

What is the power measured? According to the International System of Units, engine power is measured in watts. The English system of measurement defines this parameter in pounds-feet (rarely used today). Many advertisements use the horsepower parameter (one unit equals 735.499 watts).

How to find out how much horsepower is in a car? 1 - look in the operation manual for the transport. 2 - view an online review for a specific model. 3 - check at the service station using a special dynamometer. 4 - check the equipment by VIN-code on online services.