(ENGINE) Capacity Upgrade Kit for FA20 2.2L Low Comp

ENGINE BLOCK COMPONENTS

Capacity Upgrade Kit for FA20 2.2L Low Comp Capacity Upgrade Kit for FA20 2.2L Low Comp

High boost tuning in the era of direct injection engines!

The capacity Upgrade kit FA20 2.2L (low comp) that has a piston of a 0.5 mm larger diameter is newly added.
Upgrading with forced induction is very common for the FA20 engine tuning.
HKS has developed a highly durable low compression piston required to move onto the next tuning level.

Features

POINT-1 Piston

  • Forged material improves durability.
  • The cavity is designed in piston crown to optimize the atomization of fuel during injection.
  • 3D Piston crown design to optimize tumble flow.
  • The piston is recessed to match high lift HKS camshafts.
  • The compression ratio range is widened depending on the gasket's specification.
  • It improves the anti-seize performance and makes it possible for low friction by employing the double-layer molybdenum coating.

POINT-2 Connecting Rods

STEP1

  • Cracked connecting rod is chosen for the long stroke. The big end size is designed to omit modification of the engine block.
    (Nissan genuine bearing for RB26 and SR is required separately)
  • Highly durable I-beam and cracked connecting rod are included. The connecting rod bolt size is optimized.

STEP2

  • The thickness was optimized by strength analysis. The weight increase was minimized, and the strength was increased by approximately 30%.
  • I-beam shape was selected to increase the buckling strength.
  • The ideal shape was realized, and the fracture origin on the surface was eliminated by forged billet manufacturing. To improve fatigue strength, strong shot peening treatment is carried out on the surface.
  • The optimum heat treatment for chrome molybdenum steel was carried out to improve both strength and toughness.

POINT-3 Crankshaft Stroke 90.0m

  • The crankshaft is made from forged materials.
  • Bespoke pin journal size is employed.
  HKS 2.2L LOW COMP KIT Genuine
Bore 86.5 mm 86.0mm
Stroke 90.0mm 86.0mm
Compression Ratio (t=0.84) 10.4 -
Discharging Amount 2,116 cc 1,998 cc
FA20 2.1L KIT (LOW COMP) STEP1

●FA20 2.1L KIT (LOW COMP) STEP1

Product Engine Capacity (ml) Type Boring・Honing modification Full flow modification Code No. Manual Detail Remarks
FA20 2.1L KIT (LOW COMP) FA20 2091 φ86.0 - φ22 Not required Not required 21004-AT003 FORGED PISTON KIT + I-BEAM CON'ROD + FORGED CRANKSHAFT
FORGED PISTON KIT (LOW COMP) φ86.0 FA20 2091 φ86.0 - φ22 Not required Not required 21003-AT004 FORGED PISTON + PISTON PIN + PISTON RING
I-BEAM CONNECTING RODS FA20 - φ22 PIN - Not required 23004-AT001 FORGED, I-BEAM
FORGED CRANKSHAFT FA20 - 90mm - - 23006-AT002 Stroke 90mm
FA20 2.1L KIT (LOW COMP) STEP2

●FA20 2.1L KIT (LOW COMP) STEP2

Product Engine Capacity (ml) Type Boring・Honing Modification Full flow modification Code No. Manual Detail Remarks
PISTON FULL KIT FA20 2.1L LOW-COMP STEP2 FA20 2091 φ86.0 - φ22 Not required Not required 21004-AT004 Forged Low-comp Piston ＋ I-beam Billet Con'rod ＋ Forged Crankshaft
FORGED PISTON KIT (LOW COMP) φ86.0 FA20 2091 φ86.0 - φ22 Not required Not required 21003-AT004 FORGED PISTON + PISTON PIN + PISTON RING
CON'ROD SET FA20 I-BEAM STEP2 FA20 - φ22 PIN - Not required 23004-AT002 I-beam billet type, 22mm pin, Only for 2.1L Kit
FORGED CRANKSHAFT FA20 - 90mm - - 23006-AT002 Stroke 90mm