Most BMW engines feature cast pistons. While this does wonders for weight and efficiency, they do not handle increased power levels or boost very well. Turner Motorsport carries Genuine BMW replacements as well as high performance aftermarket options for high horsepower applications.
The JE Pistons for the BMW S50 engine are designed for enthusiasts aiming for enhanced performance and long-term reliability. Constructed from high-strength forged aluminum, these pistons are engineered to withstand the intense demands of the high-revving 3.0L inline-six. The lightweight design reduces rotational mass, improving both throttle response and overall engine efficiency. With precision-crafted dome profiles, these pistons optimize combustion efficiency, delivering more power and performance. Available with customizable compression ratios and advanced coatings, JE Pistons are perfect for high-horsepower builds, offering durability and top-tier performance on both the street and track.
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JE Pistons for the BMW S50 engine are high-performance, forged pistons designed for durability and optimized performance in racing and high-output applications. The BMW S50 engine, found in models like the E36 M3, benefits from JE Pistons' lightweight, robust design, allowing for improved power output and engine reliability under extreme conditions.
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Bore Size: 87.0mm This refers to the diameter of each piston, slightly larger than the stock bore (which is typically 86.4mm). The increase in bore size slightly raises displacement and allows for better airflow and combustion, improving power potential. Dome Volume: -10.10cc The negative dome volume indicates that the piston has a dish shape, rather than a positive dome. This affects the engine's compression ratio and helps with fine-tuning cylinder pressures. A dished piston like this allows for higher performance at high RPM, while maintaining stability. Compression Ratio: 11.50:1 This high compression ratio is ideal for naturally aspirated performance applications, offering more power output by increasing the efficiency of the combustion process. A higher compression ratio helps the engine generate more horsepower and torque from the same displacement. Material: Forged aluminum JE Pistons are known for their high-quality forged aluminum construction. This offers better strength and durability under high stress and heat, making them suitable for high-performance and racing applications. Application: BMW S50B32 (Euro-Spec E36 M3) This kit is specific to the Euro version of the S50 engine, which differs slightly from the US-spec version in terms of displacement, power output, and other engine characteristics.
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The JE Pistons BMW S50B30US 9:1 KIT is designed specifically for turbocharged or supercharged BMW 3.0L S50B30US engines. Featuring a lower 9:1 compression ratio, it provides increased reliability under high boost. Forged 2618 Aluminum construction delivers exceptional strength and heat resistance. Precision CNC machining ensures optimal fit and performance. Lightweight design enhances engine efficiency and response. This kit includes six pistons, wrist pins, locks, and rings, making it a great option for high-power forced induction builds.
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Building a high powered engine for road race, drag race, or full out competition racing? JE Pistons for your S50B30 US engine offer the ultimate in strength and reliability in a forged piston. Features: Ultra-high performance forged piston set Includes JE Pro Seal piston rings Includes wrist pins and pin locks No dish deburring or preparation needed Individually prepared inspection report of dimensional conformity Each piston individually serialized for complete traceability 23-point post-production inspection conducted by certified personnel Tighter tolerances on 14 critical areas of the piston All critical surfaces machined in dedicated Critical Manufacturing Cell Specifications: Bore (in): 3.396 Bore (mm): 86.25 Top Compression Ring Thickness: 0.0400 Second Compression Ring Thickness: 0.0480 Oil Ring Thickness: 0.111 Forging Type: FSR Volume (cc): -24.00 Series: JE Pistons Piston Head Type: Inv Dome/Dish Pin Diameter (IN): 0.866 Compression Height: 1.291 Make: BMW Wrist Pin Style - floating or press fit: Floating Wall Type: CHAMFERED Wall Thickness (IN): 0.180 Ringset Part Number: JG1001-3396 Ring Brand: ProSeal Ringset Included: Yes Retainer Thickness: 0.063 Retainer Lock Style: Wire Lock Retainer Lock Part Number: 866-063-MW Retainer Diameter (IN): 0.866 Replacement Single Piston: 361346S Piston Pin Inside Diameter: 0.506 Piston Pin Material: 5115 LOW CARBON STEEL, CASE HARDENED Piston Material: 2618 Piston Pin Length (IN): 2.250 Piston Avg Wt: 299 Pin Offset: Yes Pin Brand: JE Pistons Pin Part Number: 866-2250-18-51C Pin Included: Yes Pin Diameter (mm): 22.00 Oil Rail Support Included: No Deck Clearance: 0.030 Brand: JE Pistons
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The BMW S50B32 Euro pistons are forged aluminum, designed for high strength and lightweight performance. With an 86.4 mm bore and a 11.3:1 compression ratio, they ensure efficient combustion. The piston crown shape is optimized for airflow and high RPMs, contributing to the engine’s 321 hp output. The kit includes high-quality piston rings for excellent sealing and minimal friction. Bore Diameter: 87.00 Oil Ring Thickness: 0.111 Piston Volume: -26.00
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JE Pistons BMW S50B30 USA Piston - 11.5:1 Compression – 86.50 mm Bore – 1.291 in. CH, -9.30 CC is an exceptional performance upgrade designed for BMW enthusiasts seeking increased engine power and reliability. Specifically built for the S50B30 engine, these high-compression pistons are engineered to deliver enhanced horsepower and torque, perfect for both track and street performance. Available through Turner Motorsport, these pistons offer unmatched durability and precision, ensuring your BMW operates at peak efficiency.
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