Polyurethane has been with us as a specialised plastic for some
thirty years. However recent advances have now made it possible to
engineer very special properties into this exciting material. Suspension
bushes are some of the most highly stressed components fitted to a
motor car. They undergo enormous strains and in the most arduous of
conditions with no maintenance or lubrication. The material they
are manufactured from is a rubber compound containing natural products
which deteriorate with age. It becomes softer and more pliable,
resisting the forces placed on it less and less. Therefore allowing more
and more movement of suspension components and offering less and less
control over the suspension geometry.
POWERFLEX for
prolonged tyre life.With the technological advances in this material it
has been possible to overcome the common problem associated with harder
bushes which is increased noise. By correctly engineering the
polyurethane compound, bushes can be made 25-30% stiffer than new rubber
items but with exactly the same noise absorbing properties.
PFF5-5452 Engine Mount Insert is a two-piece kit made using our Red 65A durometer material, designed to fill the voiding of the OE rubber mount to limit drivetrain movement and sharpen throttle response on standard or mildly tuned vehicles. Mount rigidity is increased by 100%. A small increase in NVH, usually at idle, should be expected when stiffening the connecting mount between the engine/transmission and chassis. The harder the material used, the greater the NVH transmitted.
