We have detected you're not on the correct site for the car you have selected! Click the green button below to go to the correct site.
Select your car: 
BMW Mini Cooper
Select
Performance Forged Piston Set 77.0mm Bore 10.5 Cr - R55/56/57 Mini Cooper S

Performance Forged Piston Set 77.0mm Bore 10.5 Cr - R55/56/57 Mini Cooper S

Performance Forged Piston Set 77.0mm Bore 10.5 Cr - R55/56/57 Mini Cooper S

Performance Forged Piston Set 77.0mm Bore 10.5 Cr - R55/56/57 Mini Cooper S

Performance Forged Piston Set 77.0mm Bore 10.5 Cr - R55/56/57 Mini Cooper S

Performance Forged Piston Set 77.0mm Bore 10.5 Cr - R55/56/57 Mini Cooper S

Performance Forged Piston Set 77.0mm Bore 10.5 Cr - R55/56/57 Mini Cooper S
Selected: G2NME8232
Performance Forged Piston Set 77.0mm Bore 10.5 Cr - R55/56/57 Mini Cooper S
77.0mm (Std Bore) 10.5 CR
Qty:
$697.99
Part No: G2NME8232
Internet Price $697.99
High Performance Forged Pistons from CP Pistons. Includes a set of 4 Pistons, Rings, and wrist pins. 77.0mm (Standard) Bore at 10.5:1 compression (same as stock).

Fits:

2007-2010 R56 Cooper S Hatchback
2008-2010 R55 Cooper S CLUBMAN
2009-2010 R57 Cooper S Convertible

Stock Compression Ratio is 10.5:1, the 9.5:1 allows higher boost while reducing the risk of detonation.

For other Bore or Compression Ratio, see G2NME8230-P.

SPECIFICATIONS:

Bore: 77.0mm (3.031") or 77.5mm (3.051")
Stroke: 85.8mm
Rod Length: 138.5mm
Compression Height: 1.122
Pins Size: 20mm
Ring Thickness: 1.0 x 1.2 x 2.8mm
Compression Ratio: 10.5:1 (stock) or 9.5:1

CP (CARRILLO) PISTON FEATURES:

-High-strength aluminium forgings
-Super lightweight design
-Fully CNC machined and balanced to +/- 1 gram
-Includes wrist pins
-Accumulator groove included
-Double pin oilers, force fed oil ring
-High performance rings
-Pick lock grooves for easy lock removal
-Custom skirt and barrel design

CP pistons are compatible with oversized valves and higher lift cams and high performance rings.

When building your MINI Prince engine bottom end, you need a quality Piston that can handle boost and maximum horsepower. CP forged pistons feature superb ring seal, higher vacuum, lower blow-by, greater durability and increased horsepower and torque through the powerband. Better yet, peak horsepower is retained through the life of the piston rings. This is achieved by lightweight forgings and CP's exclusive machining techniques and processes. CP's commitment to racing is reflected in every piston they produce.

CP is dedicated to superior engineering, utilizing the latest forging techniques and CNC machinery and backing it up with rigorous quality control makes for a top-notch product every time that emphasizes performance and reliability. CP has some of the highest quality control standards in the industry. CP is a division of Pankl Racing Systems, a high-technology racing group supplying engine and suspension components to numerous Formula One, F3000, IRL, CART, World Rally Racing teams and to such elite companies as Ferrari and Porsche. You will not find a finer piston for your Mini.

CP Pistons Standard Features:

Anti-Detonation Grooves:
Are grooves that protect the top ring by disrupting detonation waves. Also know as contact reduction grooves, these grooves limit the piston/cylinder contact during high temperature and RPM.

Accumulator Groove:
Is a V shaped groove machined in the 2nd ring land to collect excess blow-by between the top and second ring. This groove collects residual gasses during combustion and alleviates top ring flutter while increasing ring seal.

CP groove:
stands for Constant Pressure Groove. This groove works as a channel on the lower part of the top land that equalizes pressure to the back of the top ring groove. When used in combination with lateral gas ports, the CP groove helps keep gas ports clear of carbon build up. In addition, the CP groove prevents the top land from smudging into the top ring if the land rubs the cylinder bore.

Double Pin Oilers:
in conjunction with their dual fed reservoir add twice the amount of oil from the cylinder wall to the wrist pin.

Cam and Barrel:
Extensive research and development has been done to find the optimum skirt shape for each piston. Having the correct cam and barrel on a part promotes the following: Tighter clearances, Less noise, Better ring seal, More power, Durability. Depending on the forging and application, different cam and barrel profiles are utilized for maximum performance.

For Gen 1 R52/53 Cooper S models, see NME1460-P.

See Installation Guide Here..

Loading...
Loading...
Loading...
This Item (G2NME8232) Fits the following cars:
  • 2010
  • MINI Cooper
  • R55 Clubman
  • Automatic
  • 2010
  • MINI Cooper
  • R55 Clubman
  • Manual
  • 2010
  • MINI Cooper
  • R56 Hatchback/Hardtop
  • Automatic
  • 2010
  • MINI Cooper
  • R56 Hatchback/Hardtop
  • Manual
  • 2010
  • MINI Cooper
  • R57 Convertible
  • Automatic
  • 2010
  • MINI Cooper
  • R57 Convertible
  • Manual
  • 2010
  • MINI Cooper S
  • R55 Clubman
  • Automatic
  • 2010
  • MINI Cooper S
  • R55 Clubman
  • Manual
  • 2010
  • MINI Cooper S
  • R56 Hatchback/Hardtop
  • Automatic
  • 2010
  • MINI Cooper S
  • R56 Hatchback/Hardtop
  • Manual
  • 2010
  • MINI Cooper S
  • R57 Convertible
  • Automatic
  • 2010
  • MINI Cooper S
  • R57 Convertible
  • Manual
  • 2009
  • MINI Cooper
  • R55 Clubman
  • Automatic
  • 2009
  • MINI Cooper
  • R55 Clubman
  • Manual
  • 2009
  • MINI Cooper
  • R56 Hatchback/Hardtop
  • Automatic
  • 2009
  • MINI Cooper
  • R56 Hatchback/Hardtop
  • Manual
  • 2009
  • MINI Cooper
  • R57 Convertible
  • Automatic
  • 2009
  • MINI Cooper
  • R57 Convertible
  • Manual
  • 2009
  • MINI Cooper S
  • R55 Clubman
  • Automatic
  • 2009
  • MINI Cooper S
  • R55 Clubman
  • Manual
  • 2009
  • MINI Cooper S
  • R56 Hatchback/Hardtop
  • Automatic
  • 2009
  • MINI Cooper S
  • R56 Hatchback/Hardtop
  • Manual
  • 2009
  • MINI Cooper S
  • R57 Convertible
  • Automatic
  • 2009
  • MINI Cooper S
  • R57 Convertible
  • Manual
  • 2008
  • MINI Cooper
  • R55 Clubman
  • Automatic
  • 2008
  • MINI Cooper
  • R55 Clubman
  • Manual
  • 2008
  • MINI Cooper
  • R56 Hatchback/Hardtop
  • Automatic
  • 2008
  • MINI Cooper
  • R56 Hatchback/Hardtop
  • Manual
  • 2008
  • MINI Cooper S
  • R52 Convertible
  • Automatic
  • 2008
  • MINI Cooper S
  • R52 Convertible
  • Manual
  • 2008
  • MINI Cooper S
  • R55 Clubman
  • Automatic
  • 2008
  • MINI Cooper S
  • R55 Clubman
  • Manual
  • 2008
  • MINI Cooper S
  • R56 Hatchback/Hardtop
  • Automatic
  • 2008
  • MINI Cooper S
  • R56 Hatchback/Hardtop
  • Manual
  • 2007
  • MINI Cooper
  • R56 Hatchback/Hardtop
  • Automatic
  • 2007
  • MINI Cooper
  • R56 Hatchback/Hardtop
  • Manual
  • 2007
  • MINI Cooper S
  • R52 Convertible
  • Automatic
  • 2007
  • MINI Cooper S
  • R52 Convertible
  • Manual
  • 2007
  • MINI Cooper S
  • R56 Hatchback/Hardtop
  • Automatic
  • 2007
  • MINI Cooper S
  • R56 Hatchback/Hardtop
  • Manual
Related Technical Articles:
Performance Upgrades for your MINI Cooper
Created: September 03, 2019
Shop for MINI Cooper performance parts. Find performance exhausts, intakes, filters, turbos, superchargers, and more. Shop by performance brands such as AFE, Brembo, Borla, K&N, Remus, Wagner, Wilwood, Milltek, Billstein, and more.
Created: November 09, 2017
High performance forged pistons that can handle boost & maximum horsepower for your MINI Cooper. CP forged pistons feature superb ring seal, higher vacuum, lower blow-by, greater durability and increased horsepower and torque through the powerband. See this article for specifications, recommendations, ring gap measurements, and honing instructions.
Loading...
Loading...
Loading...
Recently Viewed Items