Supertech Pistons are manufactured from extruded high silicone,
enhanced 4032 alloy (with additional Cu, Ni & Mg) that had low
thermal expansion, excellent wear resistance and higher thermal
conductivity. Supertech Pistons, with this alloy, have withstood up
to 42psi of boost, with alcohol, without any problems.
A two or three step forging process yields a fine structural
grain which are then submitted to several machining steps in state
of the art CNC machines.
Several heat treatments provide the piston with high tensile
strength and evenly distributed hardness.
Contact reduction grooves are standard, and pin bores are honed
and reamed for precise fit. Wrist pins are constructed of cold
extruded chrome moly steel for high strength and used with wire
Finally, the pistons receive a phosphate dry lubricant coating
to protect the rings against micro-welding and enhance lubrication
on the skirt/cylinder area.
Compression ratios are computed with .030 head gasket and .010
deck unless indicated in each case.
Supertech Pistons are sold Per Piston. For
Example, when order for a 4 Cylinder Model, order Quantity: 4