SPA TURBO Forged piston set 81,5mm 1.8L 20V VW AUDI + Head Stud Set For Discount

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: 32.70mm.

Dish volume: 7cc

Compression ratio: 8.5:1

Pin offset: 1.10mm.

Material: Forged aluminum 4032 T6.

Average piston weight (unit, without pin): 325,7g (11.4 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.

Super A Piston Pin (63.45mm) – 4pcs set

Dimensions: 63.45mm x 20mm (length x O.D.)

Average unit weight: 116g (4.09 oz)

Rated for 1.000hp

Made from special steel alloys that combines optimal mass with high resistance.

Piston Rings 81,5mm SPA DLC series

Specifications:

1º ring 1.5mm – Made from carbon steel, which is 35% stronger than cast iron and about 30% lighter. DLC treated, which is the application of carbon particles, that provides higher resistance and lower friction.

2° ring 1.5mm – Made from cast iron.

3º ring 2.0mm – Made by 3 parts, providing easy handling, better oil film stability and improvement in oil removal by the lubrication holes due to its optimized design.

VW Audi cylinder head stud set for 1.8 20V Transverse Engines Head Stud Set.
The set contains 10 Studs 125mm  10 special nuts,
The studs are for M10 x 1.5 threads, please confirm with your OEM bolts before purchase.
Maximum Torque – 72 ft lb