HKS Forged Pistons for 2.1L Stroker kit - FA20 Toyota GT86 Subaru BRZ
Carefully selected specially forged raw materials used.
Replacing the gasket enables both NA and turbo-charged engine users to use this kit.
In order to cope with the demands of high outputs, strength analysis and tests have allowed optimisation of compression ratio for flexibility of setup and high boost use.
Piston crown had 3D design in consideration of stock direct injection system.
Stock pistons skirts overhang from the block during bottom of travel. Short height pistons have revised potential issues in this area.
Friction, weight and other design properties to suit the needs of short height pistons.
| Stock | HKS 2.1L | |||
|---|---|---|---|---|
| Piston | Bore dia. mm | 86 | 86 | |
| Displacement cc | 1998.2 | 2091.2 | ||
| Comp. Ratio (measured) | G/K 0.5 mm | 12.1 | 12.4 | |
| G/K 0.6 mm | 12 | 12.3 | ||
| G/K 0.7 mm | 11.9 | 12.1 | ||
| G/K 1.0 mm | 11.5 | 11.8 | ||
| Boring/Horing | - | n/n | ||
| Remarks | Cast D. ignition | Forged D. ignition | ||
This product is compatible with the following vehicles
| Vehicle Make | Vehicle Model | Vehicle Variant | From | To | Engine | Notes |
| Subaru | BRZ | 2012 | FA20 | 2.0L RWD - Petrol | ||
| Toyota | GT 86 | 2012 | FA20 | 2.0L RWD - Petrol |
Whether it is engine, exhaust, suspension, or drive-train systems, there is no substitute for the performance, quality and reliability of HKS. Part-Box/Co-ordSport are an approved distributor for HKS performance and tuning products.
For over 35 years, HKS products have been put to the test in drag racing, road racing, rallying, and top speed trials. HKS equipped vehicles have captured numerous racing championships and hold claim to a myriad of competition records using many “off the shelf”, race proven HKS components. As a result, HKS has been synonymous with “performance” in the automotive aftermarket industry for the past 35+ years.
