JDY Performance STG1 BMW S58 3.0TG8X Pistons by Diamond
$3,800.00
JDY Performance STG1 BMW S58 3.0TG8X Pistons by Diamond
$3,800.00
The JDY Stage 1 and Stage 2 Pistons are high-performance upgrades designed specifically for the BMW S58 engine platform. These pistons are engineered to handle extreme power outputs while offering enhanced durability and efficiency for high-performance and racing applications. Available in stock bore size (84mm) with a 9.2:1 compression ratio, they deliver outstanding performance and reliability under the most demanding conditions.
Key Features:
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Piston Design:
- Stock Bore Size: 84mm.
- Compression Ratio: 9.2:1.
- Material: Billet 2618 alloy for high strength and lightweight performance.
- Available Options: Stage 2+pistons ( 1800+ HP).
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Wrist Pins:
- Material: H13 super hard alloy.
- Dimensions: 23mm diameter, 0.225-inch pin wall thickness.
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Piston Rings:
- ?equipped with Total Seal piston rings, which are thicker than OEM rings for better sealing, improved oil control, and enhanced resistance to higher combustion pressures.
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Groove Re-Design:
- The piston ring grooves have been re-engineered for better heat management and durability, minimizing the risk of ring flutter and improving overall performance. Optimized groove depth ensures reliable sealing while accounting for thermal expansion under high-stress conditions.
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Valve Pocket Design:
- Custom valve pocket grooves are designed to accommodate Kelford stage 1, 2, and 3 camshafts, allowing for better volumetric efficiency and greater valve lift without interference.
Stage 1 Pistons:
- Surface Finish: Standard Billet 2618 finish.
- Ideal for builds up to 1500+ horsepower.
- Durable and cost-effective solution for moderate high-performance applications.
Technical Specifications:
- Finished Bore Size: 3.307 inches
- Compression Ratio: 9.2:1
- Wrist Pin Diameter: 0.905 inches
- Wrist Pin Length: 2.250 inches
These pistons are engineered for compatibility with Kelford stage 3 camshafts, which allow for more valve lift, requiring deeper valve pockets that JDY has specifically designed.