Whether you're building a high-compression naturally aspirated engine or a low-compression turbocharged monster, Supertech Forged Pistons provide the strength, precision, and reliability serious BMW enthusiasts demand. Precision forged from premium 4032 aluminum alloy (2618 alloy available for select applications), these pistons are engineered to withstand extreme cylinder pressures, sustained high RPM, and the abuse of competitive motorsports.
Designed specifically for BMW M52 and S52 engines, Supertech pistons feature optimized skirt profiles for reduced friction, improved piston stability, and exceptional ring sealing. Every kit includes chrome-moly wrist pins and Japanese-manufactured piston rings, making them an ideal foundation for your next performance engine build.
Whether you're assembling a naturally aspirated road race engine or a boosted street or drag build, Supertech has the piston configuration to match your goals.
Features
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Premium 4032 forged aluminum construction
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Optional 2618 alloy available for extreme racing applications
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Lightweight round skirt design
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Precision CNC machined
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Chrome-moly wrist pins included
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Premium Japanese piston rings included
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Computer-optimized skirt profile for improved ring seal
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Designed for naturally aspirated, turbocharged, and nitrous applications
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Race-proven durability for high-performance BMW engine builds
Available Configurations
Turbo / Nitrous
| Bore | Oversize | Compression Ratio | Application |
| 87.0mm |
+0.60mm |
8.5:1 |
Turbo / Nitrous |
Naturally Aspirated
| Bore | Oversize | Compression Ratio | Application |
| 87.0mm |
+0.60mm |
11.0:1 |
Naturally Aspirated / All Motor |
Specifications
| Specification | Value |
| Engine |
BMW M52 / S52 |
| Bore |
87.0mm |
| Oversize |
+0.60mm |
| Material |
4032 Forged Aluminum |
| Stroke |
89.60mm |
| Rod Length |
135mm |
| Pin Diameter |
22mm |
| Compression Height |
31mm |
| Head Volume |
36cc |
| Weight |
306g |
| Skirt Style |
Round |
| Ring Set |
R87-GNH8700 Included |
Compression Ratio Options
8.5:1 Compression Ratio
Designed for high-boost turbocharged and nitrous applications where lower static compression provides additional tuning flexibility under elevated cylinder pressures.
Ideal for:
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Turbocharged builds
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Supercharged builds
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Nitrous applications
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High-boost street cars
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Drag racing
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Competition engines
Dome/Dish: -25cc
11.0:1 Compression Ratio
Designed for naturally aspirated performance engines seeking increased efficiency, improved throttle response, and maximum power without forced induction.
Ideal for:
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Naturally aspirated builds
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Road racing
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Time Attack
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Autocross
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Street performance
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High-compression engine builds
Dome/Dish: -12cc
Why Choose Supertech?
Supertech has earned a worldwide reputation for manufacturing premium engine components trusted by professional engine builders and racers. Every piston is engineered to exacting tolerances for exceptional strength, consistent weight, and long-term durability in demanding high-performance applications.
Pair Supertech forged pistons with Supertech connecting rods and ARP fasteners to create a rotating assembly capable of handling today's most demanding BMW engine builds.
Vehicle Fitment
| Make | Engine | Oversize | Compression Ratio |
| BMW |
M52 |
+0.60mm |
8.5:1 or 11.0:1 |
| BMW |
S52 |
+0.60mm |
8.5:1 or 11.0:1 |
Common Vehicle Applications
BMW M52
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1996-1998 BMW 328i (E36)
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1996-2000 BMW 528i (E39)
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1998-2000 BMW Z3 2.8
BMW S52
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1996-1999 BMW M3 (E36 North America)
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1998-2000 BMW Z3 M Coupe
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1998-2000 BMW Z3 M Roadster