What is the compression ratio of these pistons and why is it important for a turbo build?

These pistons have a compression ratio of 8.5:1. This lower compression ratio is beneficial for turbocharged engines because it helps prevent detonation (or 'knocking') when boost is applied, allowing for more aggressive tuning and higher boost levels safely.

What material are these pistons made from and what are the benefits?

The pistons are forged from 2618 aluminum, which offers improved tensile strength compared to cast aluminum. This makes them more durable and better able to withstand the high temperatures and pressures generated in performance and racing engines.

Does this kit include everything needed to install the pistons?

This kit includes a set of four pistons and premium rings. It is recommended to consult the manufacturer's installation guide for a complete list of associated parts and hardware that may be needed for a full engine rebuild.

2002-2006 Mini Cooper Piston Set | Wiseco K618M775

Name: Wiseco Mini-Cooper 2002-5 FT 8.5:1 Turbo 77.5mm Piston Shelf Stock Kit
Brand: Wiseco
SKU: wiseco-wiseco-mini-cooper-2002-5-ft-8-5-1-turbo-77-5mm-piston-shelf-stock-kit-t14-243813
Price: 650.99 USD
Availability: InStock

Wiseco Mini-Cooper 2002-5 FT 8.5:1 Turbo 77.5mm Piston Shelf Stock Kit

$650.99

Only 3 left in stock

Fits 2002-2006 Mini Cooper. Wiseco forged piston set for turbo builds, 8.5:1 compression.

Key Features

Fits 2002-2006 Mini Cooper.
Forged and machined in the USA from 2618 aluminum for improved tensile strength.
Features precision ring grooves, anti-detonation grooves, and additional ring seal improvements.
ArmorGlide skirt coating reduces friction, resists seizure, and quiets operation.
Designed and built to withstand heavy to severe duty performance applications.
Fully machined crown for accuracy.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

Wiseco is well-known for making strong internal engine components, and this Professional Series piston set is a prime example of their commitment to performance builds. If you're working on a 2002-2006 Mini Cooper and looking to upgrade for turbocharging or severe duty use, this set is built to handle the extra stress. These pistons are designed to replace your stock ones and are specifically made for the 1.6L 16V engine, featuring a 77.50 mm bore and a compression ratio of 8.5:1, which is ideal for forced induction setups.

These pistons are forged and machined in the USA from 2618 aluminum, a material chosen for its improved tensile strength under high temperatures and pressures. They come with precision ring grooves, anti-detonation grooves, and features to improve ring seal, all contributing to better combustion control and durability. The crown of each piston is fully machined for accuracy, and they include forced pin oiling to ensure the wrist pins stay well-lubricated. Plus, they feature an ArmorGlide skirt coating that helps reduce friction, resist seizure, and operate more quietly, making them suitable for heavy to severe duty performance applications.

This kit includes a set of four pistons, along with premium rings designed to work seamlessly with the pistons. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For installation, it's always best to refer to the manufacturer's detailed instructions to ensure everything is set up correctly for optimal performance and longevity.