Supertech Performance Piston Kit; For Turbo/Nitrous Applications; For use w/ Ring Set GNH7700 MINI COOPER


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Part #: P4-MIN56-77-CR10
Notes: Piston Kit
For Turbo/Nitrous Applications
For use w/ Ring Set GNH7700
MSRP: $675.56
Your Price: $146.40
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Specs

Bore 77mm[Std Oversized]
Comp Height 28.70mm
Comp Ratio 10
Dome/Dish Volume CCs Std
Pin Diameter 20mm (.787")
Pin Weight 86grams
Piston Weight 250grams
Rod Length Std
Skirt Style Slipper Style
Stroke 85.8mm

This Item Also Available In

Part Number Price Notes & Specs
P4-MIN56-77.5-CR10 $135.40 Notes Piston Kit
For Turbo/Nitrous Applications
For use w/ Ring Set GNH7750
Bore 77.50mm[0.5mm+ Oversized]
Comp Height 28.70mm
Comp Ratio 10
Dome/Dish Volume CCs Std
Pin Diameter 20mm (.787")
Pin Weight 86grams
Piston Weight 256grams
Rod Length Std
Skirt Style Slipper Style
Stroke 85.8mm

All Fitments

MINI
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
2008 - 2015 COOPER ALL ALL 1.6 T ALL ALL
2011 - 2015 COOPER COUNTRYMAN ALL ALL 1.6 T ALL ALL
2013 - 2015 COOPER PACEMAN ALL ALL 1.6 T ALL ALL

Product Description

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 clip locks.

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.

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