JDY Drag Spec Pistons for Audi RS3/ TTRS/ RSQ3, DAZA/DNWA Platform

Description

These are high-performance upgrades designed specifically for the high boost (55psi +) & NOS Application. 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 (82.5mm) with a 9.5:1 compression ratio, they deliver outstanding performance and reliability under the most demanding conditions.

Key Features:

• Piston Design:
• Stock Bore Size: 82.5mm.
• Compression Ratio: 9.5:1.
• Material: Billet 2618 alloy for high strength and lightweight performance.

• Wrist Pins:
• Material: H13 super hard alloy.
• Dimensions: 23mm diameter, 0.225-inch pin wall thickness.
• Coating: DLC (Diamond-Like Carbon) coating for reduced friction, enhanced wear resistance, and better performance under high temperature.
• 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.
• Groove Re-Design:
• The piston ring grooves have been re-engineered for better heat management and durability, minimising the risk of ring flutter and improving overall performance. Optimised groove depth ensures reliable sealing while accounting for thermal expansion under high-stress conditions.
• Valve Pocket Design:
• Custom valve pocket grooves are designed to accommodate Kelford Cam-A & Cam B camshafts, allowing for better volumetric efficiency and greater valve lift without interference.

• Hard Anodizing: Provides a durable oxide layer for increased hardness, wear resistance, and corrosion protection. It also improves heat resistance and lowers friction between the piston and the cylinder wall.
• DLC Coated Wrist Pins: DLC coating ensures extremely low friction and enhanced durability, even in high-temperature environments, while reducing wear on the connecting rods.
• Performance Rating: Supports builds 1400+ horsepower, ideal for high-performance and racing applications.

Technical Specifications:

• Finished Bore Size: 82.5mm
• Compression Ratio: 9.5:1
• Wrist Pin Diameter:
• Wrist Pin Length:

These pistons are engineered for compatibility with Kelford Cam-A & Cam B camshafts, which allow for more valve lift, requiring deeper valve pockets that JDY has specifically designed.