SH30RB wrote:i think, for me it seems pretty interesting and i would like to learn/gain knowledge about it to a certain depth.
If it interests you to learn about something find some text books on the subject (especially useful for things where learning by tinkering might prove very costly
).
There are plenty of text books on engine technology that cover all parts of the engine, what their purpose is, how they work together, optimal operating conditions etc.
You may think you already know all about all the parts in an internal combustion engine and what they do (for all I know you do, in which case disregard) but some textbooks go into enormous detail, so you'll probably learn something anyway.
That would give you a good understanding of how things work.
Then when you know how something works it is much easier to understand how to make it better.
So when you are learning the art of tuning you actually understand the reasoning behind what you are doing fully, which means you are less likely to kill your engine.
Check out Amazon for many a book on engines and other car related technology.