SPA Performance Single Forged Piston (82.5mm) - VW / Mk5 / 2.5L / Jetta | MVLPTW33UN

For VW 2.5L Jetta MK5

Nominal bore diameter: 82,5mm

Recommended bore to piston to bore clearance: 0.08mm (For nitrous or extreme applications, consult your builder)

Piston ring grooves: 1.5 mm / 1.5 mm / 2.0mm

Compression height: 29.3mm.

Dish volume: 12.7cc

Pin offset: 1.10mm.

Material: Forged aluminum 4032 T6.

Average piston weight (unit, without pin): 329g (11.60 oz).

Rated for 1000hp.

Innovative high performance piston skirt design that provides:

1. Smaller piston to bore clearance

2. Less noise

3. Better ring seal

4. Higher power

5. Durability

Features:

Anti detonation grooves: protect the top ring by disrupting detonation waves and reduce piston-cylinder contact in high temperatures and engine RPM conditions.

Accumulator groove: accumulates residual combustion gasses reducing top ring flutter and improving seal.

Pin oil lubrication by broaches and oiler to reduce friction and increase durability.