JE Pistons are specifically engineered for extreme applications up to, and including, professional competition. In this environment, higher compression ratios, extreme boost levels and heavy nitrous usage necessitate the higher tensile strength 2618 aluminum alloy found in every JE Piston.
- 6X JE forged 2.7T pistons
- 6X JE Pro Seal piston rings sets
- 6X JE straight wall carbon steel wrist pins
- 12X JE wrist pin wire locks
All JE forged piston sets for the Audi 2.7T engine are standard in 9.0:1 compression ratio. This compression ratio is a perfect match for engine builds running high boost, high torque, or race fuels/nitrous requiring this type of forged piston. The compression ratio allows more boost and timing with less chance of cylinder detonation on proper tuning without sacrificing spool time, out of boost power, and peak power.
JE offers your choice of bore size to suit your build. You have the option of stock (81mm) bore sizing or up to +2mm (83mm) oversized bores. Overbore pistons require additional machine work including a cylinder bore and hone, this work must be performed by a machine shop. For most performance engine builds, we recommend overboring the engine block when installing aftermarket pistons. This additional work ensures a proper piston to wall clearance and in most cases results in stronger compression, longer piston life, increased ring life, and quieter piston operation.
**+.5mm bore size: Overbore pistons require additional machine work including a cylinder bore and hone, this work must be performed by a machine shop**
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