Wiseco K745M825 – forged piston kit for VW/Audi 2.0 TSI EA113 (ENG)

Key advantages

• Forged 4032 aluminum – lower thermal expansion than 2618, allowing tighter clearances and quieter operation in daily use.

• Inverted dish −11.25 cc → compression ratio ≈ 9.25 : 1 with the stock 92.8 mm stroke; plenty of safety margin for large turbo setups and E85 fuel.

• ArmorGlide® skirt coating reduces friction and helps prevent cold-start scuffing.

• FSR asymmetric skirts: a narrower thrust side cuts weight, while the wider major thrust side stabilizes the piston at high RPM.

• Lateral gas ports keep the top ring sealed under high boost.

• 20 mm thick-wall wrist pins included – strength reserve for 600 + hp builds.

• Supplied with a dedicated Wiseco ring pack, ready for installation.

Typical applications

• Stage 3 + EA113 TFSI with large single or hybrid turbo.

• Drag, drift and time-attack engines exceeding 600 hp.

• E85 / methanol conversions that need lower compression and greater knock resistance.

Technical specifications

* With stock 92.8 mm stroke and EA113 cylinder head.

Kit contents

• 4 × Wiseco pistons K745M825

• 4 × 20 mm wrist pins + locks

• 1 × Wiseco ring pack (1.0 / 1.2 / 2.8 mm)

• Installation sheet with clearance and torque data

Installation guidelines

• Piston-to-bore clearance: 0.04–0.05 mm for street use; 0.06 mm for boost > 30 psi.

• Set ring gaps to target boost (≈ 0.14 mm per 25 psi for the top ring).

• Check valve-piston clearance when cam lift ≥ 11 mm; deepen pockets if necessary.

• Use high-ZDDP 5W-40 / 15W-50 oil and shorten change intervals on 500 + hp engines.