F56 B48 SneedSpeed Forged Super Sport Series Piston Set – 11.0:1 Compression Ratio

Forged Strength. Turbocharged Performance. Engineered by SneedSpeed.

The SneedSpeed Forged Super Sport Series Piston Set is a high-performance forged piston upgrade engineered for the 2.0L turbocharged BMW B48 engine found in MINI Cooper S models.

Manufactured from forged 4032 aluminum alloy, these pistons provide increased strength, excellent wear resistance, and controlled thermal expansion compared to conventional cast pistons.

Featuring an 11.0:1 compression ratio, the SneedSpeed Super Sport Series is designed for MINI Cooper S B48 performance engine builds, upgraded turbocharger applications, and complete engine rebuilds where forged strength and responsive street performance are priorities.

Each complete piston set includes four forged pistons, piston rings, wrist pins, and retaining locks.

Engineered for MINI Cooper S Turbocharged Performance

The BMW B48 2.0L turbocharged engine provides an excellent foundation for performance upgrades. Increased boost, aggressive tuning, and sustained high-load operation, however, place additional demands on the factory piston assemblies.

The SneedSpeed Forged Super Sport Series provides a stronger forged piston solution for enthusiasts and engine builders looking to increase engine durability while retaining the responsive characteristics of the MINI Cooper S.

With an 11.0:1 compression ratio, these pistons are intended to maintain a high-compression configuration that supports strong throttle response and efficient combustion.

The forged 4032 aluminum construction offers excellent dimensional stability and lower thermal expansion than traditional 2618 racing alloys, allowing tighter operating clearances and improved cold-start characteristics.

Whether you're rebuilding a B48 engine, upgrading its turbocharger, or assembling a high-performance MINI Cooper S, SneedSpeed Super Sport pistons provide a durable foundation for increased performance.

Key Features

• Forged 4032 Aluminum Alloy: High-strength forged construction provides improved resistance to mechanical stress and fatigue compared with conventional cast pistons.

• 11.0:1 Compression Ratio: High-compression configuration designed for MINI Cooper S B48 engine applications.

• Engineered for Turbocharged Performance: Designed for the mechanical and thermal demands of modified B48 engines.

• Low Thermal Expansion: The high-silicon 4032 alloy allows tighter operating clearances than typical 2618 forged pistons, helping reduce cold-start piston noise.

• Performance Skirt Coating: Helps reduce friction between the piston skirt and cylinder wall while providing additional protection against wear.

• Precision-Machined Construction: Manufactured for consistent dimensions, accurate fitment, and dependable engine operation.

• Performance-Oriented Design: Suitable for performance tuning, upgraded turbochargers, and high-output engine builds.

• Complete Piston Set: Includes piston rings, wrist pins, and retaining locks for all four cylinders.

Why SneedSpeed Uses 4032 Forged Aluminum

Not all forged pistons are designed for the same operating conditions.

The SneedSpeed Super Sport Series uses forged 4032 aluminum alloy because it provides an excellent combination of strength, wear resistance, and thermal stability for high-performance turbocharged engines.

4032 contains a higher silicon content than 2618 racing alloys, providing several advantages for engines that see regular street use.

Advantages of Forged 4032 Pistons

• Increased Strength: Forged construction provides improved resistance to mechanical loading compared with conventional cast aluminum pistons.

• Reduced Thermal Expansion: Allows tighter piston-to-wall clearances and more controlled cold-start operation.

• Excellent Wear Resistance: Higher silicon content helps reduce piston skirt wear during extended operation.

• Street-Friendly Performance: Reduced cold-start piston noise compared with typical 2618 forged piston installations.

• Turbocharged Durability: Well suited for performance engines operating with increased cylinder pressures.

• Long-Term Reliability: Designed for engines that experience daily driving, repeated heat cycles, and demanding performance use.

For MINI owners looking to build a powerful B48 engine without sacrificing everyday usability, SneedSpeed Forged Super Sport pistons provide an excellent balance of performance capability and durability.

11.0:1 Compression Ratio – Built for Responsive Performance

Compression ratio plays an important role in engine efficiency, throttle response, combustion characteristics, and power delivery.

The 11.0:1 compression ratio of these pistons provides a high-compression configuration suited to the MINI Cooper S B48 engine.

When combined with appropriate engine management, fuel quality, and turbocharger calibration, this configuration can support responsive power delivery and strong performance throughout the operating range.

Because compression ratio influences knock sensitivity and cylinder pressure, proper tuning is essential when increasing boost or modifying the engine.

The final assembled compression ratio depends on cylinder head combustion chamber volume, head gasket thickness, piston deck height, and engine configuration.

What's Included

Each SneedSpeed Forged Super Sport Series Piston Set includes everything needed for four complete piston assemblies.

• 4 Forged 4032 Aluminum Pistons – Precision-machined performance pistons with an 11.0:1 nominal compression configuration.

• Complete Piston Ring Set – Piston rings for all four cylinders.

• 4 Wrist Pins – Piston pins for connecting rod installation.

• 8 Wrist Pin Locks – Retaining locks to secure the wrist pins.

Complete four-cylinder piston set with rings, wrist pins, and locks included.

Technical Specifications

Vehicle Fitment

MINI Cooper S – B48 2.0L Turbocharged Engine

Potential applications include:

• MINI Cooper S F56 – 3-Door Hatchback

• MINI Cooper S F55 – 5-Door Hatchback

• MINI Cooper S F57 – Convertible

• MINI Cooper S F54 – Clubman

• MINI Cooper S F60 – Countryman

Fitment must be confirmed against the specific B48 engine variant, piston dimensions, and original compression configuration before ordering.

Not intended for MINI Cooper JCW or other B48 variants with different piston specifications without verifying compatibility.

Installation Requirements

Proper cylinder measurement, machining, and engine assembly procedures are essential when installing forged performance pistons.

Cylinder bores must be measured and finished to the specified piston-to-wall clearance using the actual pistons supplied.

Piston-to-wall clearance, ring end gaps, wrist pin fitment, piston-to-valve clearance, and connecting rod compatibility must be verified during assembly.

The final assembled compression ratio must also be confirmed against the engine's cylinder head, gasket, and deck configuration.

Professional engine machining and assembly are recommended.

Built from Racing. Proven by Results.

With more than 20 years of MINI performance engine development, three championships, over 100 race victories, and a 24-hour endurance racing victory, SneedSpeed develops performance engine components based on real-world experience.

The SneedSpeed Forged Super Sport Series Piston Set brings that experience to the MINI Cooper S B48 engine, delivering forged strength, precision construction, and the durability required for serious turbocharged performance.

SneedSpeed Powertrain Systems

Built from Racing. Proven by Results.

If we wouldn't run it, we don't sell it.