Throw the compression rate of a spring we understand that if a certain weight is apply to the suspension system to compress it, and to find out how much the suspension system compress. To help us for the measuring of the rate and to shoe a permanent symbol that the entire world will recognize we [...]

Even from the acquisition of the car the owners must choose an adaptable engine for his type of driving. In the idea of the sport performance, qualified tuners use some artificial techniques.
At the engine:
-lateral action of the cams axes, has advantages like: the width of the engine decreases, the distance between the pistons is [...]