Description
The HKS Piston Full Kit provides the listed capacity-upgrade configuration for an engine build. Application: SR20.
Design and operation
Increasing displacement requires a coordinated relationship between crankshaft stroke, piston dimensions and connecting-rod geometry. The stated capacity applies to the specified combination and its required machining and clearances.
Technical details
- Manufacturer part number: 21004-AN015.
- Configuration: 2.2 L / Step 1 / 86.5 mm
- Application: SR20.
- Engine designation: SR20DET.
- Published build displacement: 2139 mL.
- Bore / pin-size designation: φ86.5 - φ22.
- Published boring / honing requirement: required.
- Package / component specification: Forged Piston Kit + H Beam Connecting Rod _ Forged Fully Counterweighted Crankshaft. Not Compatible with RNN14.
Application-specific requirements
- Users can select between φ86.5 (STEP1) and φ87.0 (STEP2) for condition of cylinder block or required specification of the engine.
- (Same for other engine models.)In case bore is not accurate circle, pistons cannot be installed accurately.
Installation and selection
Confirm the exact supplied-component list and any required companion parts. Engine assembly should include bore, bearing, ring-gap and clearance checks, followed by calibration for the completed combination.