What is engine swap

There are many ways to improve the power and performance of your vehicle. As a rule, actions are limited to the replacement of individual units and engine components. However, the tuning possibilities directly depend on the design features of the engine installed on the car. Hence follows the most radical method of increasing power - engine swap, in other words, its complete replacement with a new power unit. To understand the features, pros and cons of swaping, let's understand its essence, the specifics of its implementation and legalization.

What does motor swap mean

Translated from English swap means "replacement". That is, the engine swap is the installation of a new unit instead of the standard engine. Moreover, it can be either the same exactly the power plant, or more powerful.

In the first case, the replacement is carried out, as a rule, when the original internal combustion engine is completely out of order with a similar one, both new and contractual. This allows you to avoid lengthy and costly overhaul, search and order of spare parts and their subsequent laborious assembly together. Often, completely changing the motor is not only faster, but also cheaper.

In the second case, a more powerful modification of its engine is installed on the machine, for example, from a "charged" version of the model, or an external engine in general. This is a laborious process, which in most cases requires other work - replacing the transmission, reprogramming the ECU, flashing the standard ICE control program. Without this, it will be extremely difficult for the car, and in most cases it will be impossible to realize an increase in torque and power.

It is especially difficult to swap the engine on machines with an automatic or robotic gearbox. Their reconfiguration to a new operating mode is often simply impossible, so it is easier to replace the "automatic" with a manual gearbox. In practice, however, this can turn into a very complex and costly process.

How to swap a motor

To swap a motor, you need to perform many mandatory procedures, especially if a completely different unit is installed. First of all, you need to make sure that the desired ICE can be placed on the chassis of your car. After measuring, you can choose the modification of the engine that suits you - manufacturers today offer quite wide model lines of motors that differ in their characteristics:

  • some initially have more power;
  • others are easier to tune;
  • still others are larger and therefore simply will not fit into the engine compartment of your car.

When choosing an engine for a swap, you should use the experience of other motorists, whom they share on the Internet, advice from auto experts and sellers, information car manufacturer.

Next, you need to make sure that all mountings, pillows fit your car, are strong enough and reliable. If the fasteners do not match, then this can lead to a whole range of problems:

  • violation of the angle of operation of the drives - it should be no more than 3 degrees. (for both front and rear);
  • uneven transmission;
  • broken lubrication cycle, etc.

It is strongly recommended to avoid contract engines with damaged, loose mountings. Under load, they can break and the entire mass of the engine will fall onto the front axle and steering system. It is better to replace the weakened rubber pads immediately - for a heavier engine, it is worth installing more rigid polyurethane pads.

Often, to swap the engine, it is necessary to redo the oil pan, as well as install new equipment for the lubrication system - a pressure sensor, oil pump, etc. Replacing the wiring can also be a hassle - for this it is better to use specialized sets of cables and fuses marked in different colors. You also need to take care of protecting the wires in the most critical places - where there is a high risk of damage to them, it is better to put metal or rubber pads.

Another important point on the wiring is that it will not be difficult to lay new cables for the carburetor motor, but in models with an electronic injection system, you will have to study its features in detail. To do this, it is recommended that you use the official manuals for the engine model of your choice and for the machine. The ECU must be installed in such a way as to protect it from accidental impacts, but at the same time, access to it should be easy enough - after the engine swap, the control unit will have to be reconfigured / reflash.

In addition to all of the above, when installing a new engine of another model, you will need to do the following:

  • check the compatibility of the engine and the dashboard - the sensors must be compatible;
  • check the cable run that opens the throttle valve;
  • on rear-wheel drive vehicles in most cases requires replacement and the propeller shaft;
  • When installing an electronic injection engine, the fuel delivery system must be modified accordingly;
  • upgrade the cooling system to improve its performance.

The most important thing when swaping a motor is to control each step, check the quality of the connections and test the operation of each component individually and collectively.

See also : What is a contract engine and how to choose it

How to arrange a motor swap

It is not enough just to make a motor swap - you also need to arrange it correctly. This is due to the fact that the number of the power unit is one of the most important attributes of any car, it is used for verification with the data in the TCP, it is checked when preparing the car for sale, during all kinds of traffic police raids, when passing through customs, etc.

In order to register a new engine without unnecessary difficulties, it is recommended to follow the following procedure:

  1. car in MREO.
  2. Obtaining a certificate from the service station, where the new engine will be installed, to confirm its legal receipt.
  3. Obtaining an expert opinion that the replacement of the internal combustion engine is allowed by the design of your car and will not cause a violation or illegal change in its characteristics - if the examination is positive, an act is drawn up with a list of improvements that will have to be performed.
  4. Directly swap the engine.
  5. Repeated application with the full package of documents to the MREO for official registration.

Experience shows that when replacing a motor with a similar one, problems rarely arise. If a motor with other characteristics and design features is installed, then the process may be delayed.

See also : What is atmospheric engine and how does it work.

Pros and cons of swap

The main advantages of swap engine installation are:

  • time savings and often money in comparison with major repairs;
  • the ability to increase power and torque;
  • machine resource restoration;

This process also has a number of certain disadvantages:

  • the complexity of the process, the need to rework a large number of units and systems;
  • when installing a more powerful engine - an increase in the mass of the car;
  • increased load on units and mechanisms;
  • the complexity of the implementation - not every service station will take up the swap of the engine;
  • the need to obtain official permission from the MREO authorities, to conduct paid examinations;

Thus, you need to weigh the pros and cons, assess your own material capabilities and the need to replace the engine as a whole. If the pros outweigh the cons, then you need to take care of choosing a suitable service station.

See also : What is the ECU in a car

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