Nitro oxide is translated as nitrogen oxide (or paradise gas), used in healthcare as an anesthetic - but we will be interested in its use in cars.

This article continues the performance enhancement series, and we will briefly focus on the Nitro Oxide System, NOS.

Modifying the cylinder head is a popular but technically demanding way to increase engine performance. So in this article, we will look at the possible modifications of the cylinder head and its accessories.

This article is only informative about potential adjustments to the cylinder head and its accessories and does not serve as a guide.

Replacing the stock exhaust pipes with tuned exhaust pipes is one of the basic and widespread engine modifications. But what do you achieve with such a modification, and what is the difference between regular leads and tuned leads?

We will dive into the topic soon, but first, let's say a few words about what the exhaust manifolds are actually used for.

An air-fuel ratio is a dimensionless number that expresses the ratio between the actual amount of air in the mixture and the theoretical amount (stoichiometric amount) of air corresponding to the fuel used. The coefficient, named in English as the Air-Fuel Ratio, is denoted by the Greek letter λ (lambda).

The coefficient defined in this way is mainly used in the field of internal combustion engines because it is a necessary parameter for the preparation of the mixture. The air-fuel ratio thus thoroughly expresses the mixture's richness level. Each fuel needs a different amount of air for its perfect combustion.

An intake manifold modification is among the most basic and affordable engine modifications any car enthusiast can tackle. Every day, we can come across many people on the internet interested in how to increase engine performance. We, therefore, decided to write an article focused on this topic.

In this article, you will learn in particular about the possibilities of how to increase the performance of a naturally aspirated engine by adjusting the intake manifold. Please keep in mind that this is not a guide, and everything you do is at your own risk.

A naturally aspirated engine, also called a normally aspirated engine (or NA engine in short), is a piston combustion engine that converts thermal energy into mechanical work. Thermal energy is obtained in the engine by converting fuel into heat through combustion.

When fuel is burned, the temperature and pressure in the engine increase. The increased pressure of the working substance acts on the pistons of the engine, which transform this energy into mechanical work.