turbo on JAP 2JZ

[ae92Rolla89]

what size are they? does nay body know also how much bosot can they hold

[Jeeves]

They are CT-12a's.

Manufacturer Toyota (Hitachi)
Type CT-12A (Part Number : 17201-46010 (Front), 17208-46010 (Rear))

Turbine size (Outlet diameter) 42mm
Turbine size (Inlet diameter) 51.6mm
Turbine Blade count 8
Turbine Material Ceramic
Turbine Housing Outlet (ID) 44.1mm
Turbine Housing Inlet (ID) 33mm
Turbine Shaft Diameter 8.5mm
Turbine housing A/R .45
Compressor size (Inlet diameter) 35mm
Compressor size (Outlet diameter) 54mm
Compressor Blade count 10
Compressor material Aluminium
Compressor Housing Inlet (ID) 37.9mm
Compressor Housing Outlet (ID) 30mm
Compressor housing A/R .30

Bearing ID 8.53mm
Bearing OD 13.55mm
Bearing Width 9mm
Bearing material Bronze
Bearing oiling holes (per bearing) 6

*Wastegate size (ID) 20mm
Actuator spring rate 10 psi


They like breaking at anything above stock boost, they are ceramic rather than steel.