Definition of a Function. A function is a relation for which each value from the set the first components of the ordered pairs is associated with exactly one value from the set of second components of the ordered pair. Okay, that is a mouth full.
Master cylinder without booster. Single bore master cylinders: These unboosted hydraulic Master Cylinders are actuated by foot effort, via the brake pedal. The brake pressure is related to actuation force and depends on the piston bore size: the smaller the bore, the higher the pressure.
Fire Ringed Cylinder Heads. For more intense engine builds, the cylinder head gaskets can be superseded with the installation of fire rings. In a fire ringed cylinder head, a small groove is machined into the cylinder head around each individual combustion chamber. A metal ring is then inserted in this groove, which positively seals to the engine block once the cylinder head is torqued down.