CONROD SET FA20(I-BEAM)

Code
Name
MSRP
23004-AT001
CONROD SET FA20(I-BEAM)
980.00
Weight
Number of BOX
Length
Width
Height
2.40
1
85
200
290
Make
Model
Year
Engine
SUBARU
BRZ
2013 -
FA20
Remarks
Capacity: -, Type: D22 PIN, Boring/Honing modification: Not required, Full flow modification: Not required, FORGED,I-BEAM
Name
CONROD SET FA20(I-BEAM)
Code
MSRP
23004-AT001
980.00
Weight
Number of BOX
2.40
1
Length
Width
Height
85
200
290
Make
Model
SUBARU
BRZ
Year
Engine
2013 -
FA20
Remarks
Capacity: -, Type: D22 PIN, Boring/Honing modification: Not required, Full flow modification: Not required, FORGED,I-BEAM

 

ENGINE BLOCK COMPONENTS

Capacity Upgrade Kit for FA20

Capacity Upgrade Kit developed by taking advantage of knowledge and experience acquired through D1 drift and time attack at Tsukuba Circuit.
This kit was designed exclusively for the FA20 engine by meticulous analysis and experiment. HKS delivers this kit with "Made in Japan" quality.
High performance specifications withstanding 550(ps)-50(kgf・m)!
This kit is for people want to upgrade all the way including the engine internals.

FEATURES

POINT-1:PISTON KIT
  • 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.
POINT-2:CONNECTING ROD
  • Specific connecting rods have been designed to suit the longer stroke.
    With no engine modifications, a special size crank pin has been set requiring new bearings. 
    ※The crank metals (Nissan RB26 & SR) must be purchased separately.
  • High strength I beam design and revised connecting rod bolt size.
POINT-3:CRANKSHAFT STROKE 90.0mm
  • Made from HKS special forged material
  • Perfect pin journal size was selected by merticulous analysis and experiment for extended stroke.
  • Carefully designed weights balance the engine for maximum efficiency.
POINT-4:Stock Bore Compatible 86.0mm
  • In order to maintain the engine block strength, the stock bore size is maintained meaning there is no need for cylinder liners
  • Reduces the cost of installation as liners, bore & hone and block facing processes are unnecessary.
  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
Con'rod Big end dia. 53 51 (RB & SR)
Bolt size M9.5 M8
Remarks Split I-beam Split I-beam
Crankshaft Stroke mm 86 90
Main journal dia. 68 68
Pin journal dia. 50 48
Remarks Forged Forged

PERFORMANCE

Test vehicle
Vehicle BRZ(ZC6) Kansai demo car
Engine FA20
Transmission 6MT
Parts Specification
Suction HKS Premium Suction
Exhaust Manifold Kansai original
Front Pipe Kansai original
Exhaust system HKS Hi-Power Spec L
I/J Stock
Fuel Pump Stock
CPU Kansai original ECU
Other Big throttle

2.1L kit + Camshaft were tested on Kansai Service's demo car with NA engine.
This graph shows before & after installation.

Upgrading the capacity exceeds the stock engine power in whole power range.
Power increase continues to the high rpm range by using the camshaft together with 2.1L Kit.

Test supported by Kansai Service.