Increase in engine power characteristics

There are some basic principles for increasing engine power, some are very time consuming and expensive, but some are quite affordable and can be replicated in your garage. From this page, which will be developed and supplemented, all information on engine tuning will be available, both basic provisions and theory and practical advice on increasing power and how much each type of tuning gives an increase.

A few introductory words about the basics of increasing the power of internal combustion engines. Basic principles for adding power and torque. Some allow you to save fuel consumption or even reduce it, while the power will be more. Fantastic you say! Not everything is justified.

Increased power and torque by increasing the amount of fuel burned.

It is not difficult to add fuel to the engine, the main problem is to supply this fuel with an oxidizer. The oxygen in the air acts as an oxidizing agent. For / vktunin optimal combustion, the fuel-air mixture should consist of 1 part of fuel (by weight) and 14 parts of air (also by weight), such a mixture is called stoichiometric and allows you to get the most favorable indicators in terms of maximum power. Therefore, when forcing the engine, they are guided by an increase in the amount of oxidant (air) supplied to the cylinders per combustion stroke.

The most effective methods of increasing the fuel are the air mixture.

1. Increase in engine displacement.

Increases power and torque over the entire frequency range, if there were no intake losses, then the power would increase linearly. There is even a saying "nothing replaces cubic centimeters. It leads to an increase in fuel consumption, since more air-fuel mixture is pumped at the same rpm. If you increase the volume and lengthen the transmission gears, then the increase in consumption will not be large.

2. Power increase due to compression ratio

The compression ratio is the ratio of the total volume of the cylinder to the volume of the combustion chamber. Increasing the compression ratio results in more power and torque across the entire rev range, while lowering fuel consumption for the same engine power output. Example: after increasing the compression ratio, a car driving at a speed of 100 km per hour will consume less gasoline than a car with a higher compression ratio at the same speed. But there is one but. As the compression ratio increases, the engine becomes more demanding on the octane rating of the fuel. although there are some tricky tricks to avoid this. But not at all budget!

3. Increase in engine speed.

If the same torque is obtained at higher rpm, the maximum engine power will increase. This is due to the fact that power is the product of torque and revolutions at which this moment is formed. This type of tuning can significantly increase the power of your engine. If you plan to greatly increase the speed, then you will have to replace all the parts involved in the work, and they can turn out to be very expensive. Consumption can become very high, since after revision the engine cannot work as efficiently at low speeds as before, and you will have to use high ones. Permanently!

Improved engine filling.

3.1 Tuning the engine head (wok) is the most effective of all the manipulations for finalizing an atmospheric combustion engine, by modifying the head of the block and installing a new camshaft, it is possible to significantly increase the effective engine power, mainly by shifting the maximum torque towards high rpm. In this case, the torque shelf / vktuning becomes narrower depending on the increase in power. The greater the percentage increase in power, the more pronounced the peak torque becomes. This is due to the fact that the engine is tuned to a certain range of crankshaft rotation speeds and works ineffectively at other speeds. The intake and exhaust systems must also be tuned to match the operating speed of the boosted engine for greater efficiency.

Tuning the head of the block can be divided into several component parts

3.1.1 Tuning inlet and outlet ports.

3.1.2 Tuning the intake valves.

3.1.2 Tuning the exhaust valves.

3.1.3 Tuning the combustion chamber

3.1.4 Tuning valve springs.

3.1.5 Tuning the valve guides.

3.1.6 Selection and installation of the camshaft.

3.1.7 Replacing the head or heads of the engine with more efficient ones.

4. Tuning intake and exhaust

The most common type of engine tuning. Helps minimize intake pressure loss and facilitate exhaust gas discharge. When used on a standard engine, all manipulations with tuning the intake and exhaust are ineffective and sometimes the increase is not even felt.