Details
Feature
Factory Replacement Type Sports Turbine Kit for SUBARU EJ20/25 Single Scroll Turbine.
Compared to the existing kit 11004-AF010, EJ20 engine is the main target of this kit; therefore, A/R of the exhaust housing is 0.67.
The ball bearing turbine of this kit was originally designed by HKS. Enlarged turbine wheel increases air volume. The ball bearing can reduce response loss. Also, the bypass port was also enlarged to reduce load to the engine and restrict the exhaust pressure increase at high engine rpm.
This turbine kit includes all necessary parts in order to install the kit such as an actuator, oil outlet pipe, etc. (There may be parts necessary to purchase separately, and parts modification is required in order to install this kit.)
Turbine specification
Model
Compressor
Turbine
Trim
Inlet Dia. (mm)
Back Dia. (mm)
Trim
Back Dia. (mm)
Outlet Dia. (mm)
GT II 7460
49.0
52.0
74.0
81.0
60.0
54.0
EJ25 Stock
60.0
46.5
60.0
82.0
53.0
48.0
GT2835
56.0
53.1
71.1
84.0
56.5
51.8
Component
GT II 7460 Turbine
Upgraded Actuator
Oil Piping
Water Piping
Gaskets/Short Parts
Note
Since the turbine scroll is bigger, it comes in contact with the transmission case. Shave the part of transmission where comes in contact with the turbine.
Modification of factory heat insulator and bracket is required to install this kit.
This kit may be able to be installed on GC8 and GDB Type A & B with single scroll turbine. However, we did not test this kit on these models.
TURBINE SPEC
MODEL
Control
device
Compressor Wheel
Compressor Housing
Trim
Inlet Dia.
(mm)
Outlet Dia.
(mm)
Inlet Dia.
(mm)
Outlet Dia.
(mm)
A/R
GT II 7460
Actuator
49
52.0
74.00
EJ only
EJ only
0.82
Turbine Wheel
Exhaust Housing
Trim
O. D.
(mm)
Outlet Dia.
(mm)
Inlet Flange
Outlet Flange
A/R
81
60.0
54.0
EJ single scroll only
EJ only
0.67
Vehicle
Model
Engine
Model Year
Type
Turbine Size
Boost Pressure
Code No.
Price
Remarks
IMPREZA,FORESTER
GC8, GDB(A-B), SG5, SG9
EJ20(TURBO), EJ25(TURBO)
92/10-
GT II SPORTS TURBINE KIT
GT II 7460 49T A/R 0.67
78.5~98.1kPa (0.8~1.0kgf/cm2)
11004-AF011
・For Single Scroll Turbine.