Wossner S2000 F20C 9.0:1 Forged Piston Kit

Wossner S2000 F20C 9.0:1 Forged Piston Kit

The Wossner S2000 F20C 9.0:1 Forged Piston Kit is the ultimate internal upgrade for Honda owners transitioning to high-boost turbocharging or supercharging. While the factory F20C engine is a high-compression masterpiece, its 11.0:1 (or 11.7:1) ratio limits the potential for forced induction. By installing this Wossner kit, you drop the compression to a turbo-friendly 9.0:1, providing the critical thermal headroom needed to run aggressive boost levels safely while protecting against detonation.

Engineered specifically for the unique demands of the S2000's high-revving nature, these pistons are manufactured from 4032-T6 forged aluminium. This specific alloy is chosen for its low expansion properties, allowing for tighter piston-to-bore clearances which results in a quieter engine and reduced oil consumption compared to other forged alternatives. Every piston features Wossner’s signature Moly skirt coating to reduce internal friction and mirror-polished crowns to eliminate hot spots, ensuring your F20C remains reliable at 9,000 RPM and beyond.

Key Performance Features

• Turbo-Optimised 9.0:1 Compression: Specifically designed to allow for significantly higher boost pressures and safer tuning on F20C engines.

• High-Silicon 4032-T6 Forging: Offers superior strength with low thermal expansion, ensuring excellent cold-start behaviour and longevity.

• Moly-Coated Skirts: Reduces parasitic drag and provides an essential layer of protection against cylinder wall scuffing.

• Mirror-Polished Piston Crowns: Reflects heat back into the combustion chamber and prevents the formation of carbon-induced hot spots.

• Complete High-Strength Kit: Supplied with high-performance piston rings, heavy-duty gudgeon pins, and secure circlips for a professional-grade build.

Technical Specifications

Why Choose Wossner?

Wossner is globally recognised as a pioneer in high-performance engine internals, with a heritage rooted in European motorsport and precision engineering. By owning and operating their own forging plant in Germany, Wossner maintains absolute control over the quality and consistency of their aluminium alloys. This vertical integration allows them to produce pistons that are lighter, stronger, and more thermally efficient than standard cast or mass-produced forged components. When you choose Wossner for your S2000, you are installing a product trusted by world-class engine builders to deliver podium-winning performance and daily-driver reliability.