OEM IHI Subaru Turbo Technical Information

Characteristic
VF22
VF23
VF24
VF28
VF30
VF34
VF36
VF37
VF39
VF40
VF43
VF46
VF48
VF52
VF54
Market JDM JDM JDM JDM JDM JDM JDM JDM USDM USDM USDM USDM USDM USDM USDM
Compressor 485 467 467 467 479 479 479 479 479 487 479 513 479 479 519
Compressor Housing STI STI STI STI STI STI STI STI STI-08 STI-04 STI-08 LGT STI-07 LGTM STI-08 LGTW LGTL
Turbine F55-81H F55-81H F55-81H F55-81H F55-81 F55-81H F55-81H F55-81 F55-81 F55-57 F55-81 F55-57 F55-81 F55-81 F55-74
Turbine Housing P20 P20 P18 P20 P18 P18 P25 P25 P18 P18 P18 P18 P18 P18 P18
Bearing Type 2 X Ball 2 X Ball 2 X Ball 2 X Ball Journal Thrust 2 X Ball 2 X Ball Journal Thrust Journal Thrust Journal Thrust Journal Thrust Journal Thrust Journal Thrust Journal Thrust Journal Thrust
Compressor Wheels
Inducer Dia (mm)
Exducer Dia (mm)
Blades
Trim
Bore (mm)
Superback Hgt (mm)
467 47.2 60 6/6 62 6.1 1.8
485 47.2 60 5/5 62 6.1 1.8
479 46.5 60 6/6 60 6.1 3.6
487 43.4 56 6/6 60 5.1 1.5
513* 43.4 56 6/6 60 5.1 1.5
519 44.9 58 6/6 60 5.1 1.5
* Reduced tip height exducer and modified sweepback from 487 wheel
Turbine Wheel/Shafts
Inducer Dia (mm)
Exducer Dia (mm)
Blades
Trim
Bearing Shaft Dia (mm)
F55-81H 53.2 48 11 81 8.0
F55-81 53.2 48 11 81 9.0
F55-74 53.2 45.7 9 74 8.0
F55-57 53.2 40.1 9 57 8.0