CT20-A Turbos?

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CT20-A Turbos?

Postby Brad_91 » Tue Nov 18, 2014 8:53 pm

These are on kijiji by my place, and I'm curious if they are a similar upgrade to CT20-B's? :shrug:

Comes off of a Toyota Aristo..

http://www.kijiji.ca/v-engines-and-engi ... nFlag=true
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Brad
1992 Celica GT-Four
~65'000km,
Mods: Turbo-back 3" Exhaust, 17x8 Versus Turismo Rims, Black Rally Armor Mud Flaps, turbo timer, manual boost controller, Whiteline rear swaybar!
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Re: CT20-A Turbos?

Postby underscore » Tue Nov 18, 2014 9:46 pm

They're smaller than a CT26. CT12 < CT20A < CT26 < "CT20B". Whoever came up with the CT20B designation for the later CT26's was an idiot.
★ 1991 GTFour RC ~ "Rebel Scum" ★
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Re: CT20-A Turbos?

Postby underscore » Tue Nov 18, 2014 9:48 pm

From http://www.supraforums.com/forum/showth ... ct20-twins

Manufacturer Toyota (Hitachi)
Type CT-20 (PN: 17201-46020 (Front), 17208-46020 (Rear)

Turbine size (Outlet diameter) 48mm
Turbine size (Inlet diameter) 59.8mm
Turbine blade count 10
Turbine material Ceramic
Turbine housing Inlet (ID) 36mm
Turbine housing Outlet (ID) 50.1mm
Turbine shaft Diameter 10mm
Turbine housing A/R .35

Compressor size (Inlet diameter) 37mm
Compressor size (Outlet diameter) 62mm
Compressor blade count 10
Compressor material Aluminium
Compressor housing Inlet (ID) 49.8mm
Compressor housing Outlet (ID) 32.4mm
Compressor housing A/R .36


*Wastegate size (ID) 26mm
Actuator spring rate 10 psi

Bearing ID 10.05mm
Bearing OD 15.9mm
Bearing width 9mm
Bearing material Bronze
Bearing oiling holes (per bearing) 6

Manufacturer Toyota (Hitachi) Export Specification (Steel Turbines)
Type CT-12B (PN: ? (Front), ? (Rear)

Turbine size (Outlet diameter) 44mm
Turbine size (Inlet diameter) 52mm
Turbine blade count 9
Turbine material Steel
Turbine housing Inlet (ID)
Turbine housing Outlet (ID) 50.1mm
Turbine shaft Diameter 7.5mm
Turbine housing A/R

Compressor size (Inlet diameter) 39mm
Compressor size (Outlet diameter) 58mm
Compressor blade count 10
Compressor material Aluminium
Compressor housing Inlet (ID) 49.8mm
Compressor housing Outlet (ID)
Compressor housing A/R

*Wastegate size (ID) 30mm
Actuator spring rate 10 psi

Bearing ID 8.53mm
Bearing OD 13.55mm
Bearing width 9mm
Bearing material Bronze
Bearing oiling holes (per bearing)
★ 1991 GTFour RC ~ "Rebel Scum" ★
It's for sale! http://www.alltrac.net/phpBB2/viewtopic.php?f=64&t=52181
Build thread http://www.alltrac.net/phpBB2/viewtopic.php?f=44&t=44216
underscore
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Re: CT20-A Turbos?

Postby Brad_91 » Wed Nov 19, 2014 2:05 pm

Thanks Underscore!

I had looked around a bit on the site and from what I read it was not an efficient turbo, but most results came back with ct20b specs.

Too bad, would have been a convenient pick-up..
Brad
1992 Celica GT-Four
~65'000km,
Mods: Turbo-back 3" Exhaust, 17x8 Versus Turismo Rims, Black Rally Armor Mud Flaps, turbo timer, manual boost controller, Whiteline rear swaybar!
User avatar
Brad_91
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Posts: 393
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1992 Toyota Celica


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