HKS 21004-AT008 Piston Full Kit FA24 2.5L High Comp Step 1
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HKS 21004-AT008 Piston Full Kit FA24 2.5L High Comp Step 1
Kelberg Warehouse
Auf der Struth 4
53539 Kelberg
Germany
Nürburgring Showroom
Nürburgring Boulevard 2
53520 Nürburg
Germany
Ideal capacity upgrade kit for increasing engine strength when installing a supercharger.
Piston Kit
- To prevent the breakage of the second land, the material employs A2618 material, which has high-temperature strength, to achieve a low pin height that eliminates the need for making any service holes.
- 2-layer molybdenum coated to help reduce friction.
- The cavity on the piston head optimizes the atomization of direct injection.
- 3D Piston crown shape sustains tumble flow.
- The uneven shape of the piston head allows using the high-lift camshaft.
Connecting Rod
- Exclusive conrods designed for longer stroke. The crank pin size is designed for a dedicated size. Thus it eliminates the modifications on the engine side.
- It optimizes the connecting rod bolt size and employs the high-strength split-type (not machined the cutting surface) I-beam.
Crankshaft
- Crankshaft uses a forged material.
- It has a dedicated pin journal size. Combination use of the HKS connecting rod is recommended.
The kit includes:
- Forged piston kit
- I-beam connecting rod
- Forged crankshaft.
Specification
|
| HKS 2.5L KIT | Stock |
| Bore | 94.0 mm | 94.0 mm |
| Stroke | 90.0 mm | 86.0 mm |
| Displacement | 2,498 cc | 2,387cc |
Compression Ratio with Stock Head
| Gasket Thickness (mm) | Compression Ratio |
| 0.6 (Stock) | 12.2 |
| 0.8 mm (HKS Grommet Type) | 11.8 |
| 1.2 mm (HKS Grommet Type) | 11.3 |