MINI R56 | N18 | Cooper S | JCW | SUPERTECH Forged Pistons 10.5:1


SUPERTECH Forged Pistons are manufactured in Argentina with technology transferred from European manufacturers. All of our pistons are manufactured to ensure the highest durability while recognizing the utmost performance improvements.

Our pistons are manufactured from extruded high silicon, enhanced 4032 alloy (with additional Cu, Ni & Mg) that has low thermal expansion and features excellent wear resistance. Additionally, the inclusion of enhanced 4032 alloy offers a much higher thermal conductivity. Using this alloy our SUPERTECH Forged Pistons have withstood up to 42psi of turbo boost with alcohol, without any problems.

Depending on the type of piston we have either a 2 or 3 step forging process that yields a fine structural grain orienting the fibers in the same direction of the stress. Combine this with several heat treatments and our pistons feature an evenly distributed hardness and extremely high tensile strength. From there each Supertech piston goes through several machining steps specifically designed to ensure dimensional precision, perpendicularity and flatness of the ring grooves.

All of our pistons feature reduction grooves, honed and reamed pin bores for the most precise fit, while our wrist pins are constructed of cold extruded chrome moly steel for high strength to be used with wire clip locks


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Additional Information

Weight 2 kg
Select Size 77.00mm | 77.50mm
Part Type Forged Pistons
Material Type 4032
Bore Size 77.00mm
Compression Height 28.70mm
Compression Ratio 10.5:1
Pin Size 20.00mm
Piston Weight 260g
Ring Layout 1.0 / 1.2 / 2.8
Rod Length 138.53mm
Stroke 85.80mm
Crown Vol 0.00cc
Coatings Phosphate
Skirt Style Slipper