CT12A turbos and steel wheel??

[Hengsta]

Howdy lads,

Im just wondering how can you tell if CT12A turbos has steel wheels in there from looking at pictures?

Any help much appreciated.

Cheers,
Heng

[JZA70 R]

You wont find a steel wheel or high flow CT12A turbo that has a turbine wheel that looks identical to a stock ceramic CT12A turbine wheel.

There are a million pics of standard CT12A turbos floating around, use one as a comparison.

[JZA70 R]

meh ill give you examples.

here is a dead standard CT12A turbine wheel.



and here is a CT12A turbo with a CT9 turbine wheel conversion.

[Hengsta]

Im guessing you saying that the ceramic ones and the steels turbine wheels look similar?

Didnt quite understand what you trying to say lol.

[LeeRoy]

Get a magnet and put that on the wheel.

[The Real Roadrunner]

the magnet trick won't always work on the steel wheels that are used for turbines as they have a different metalurgy than normal steel,
and it definately won't work trying to put a magnet on a picture (not to mention the fact that it may f#*k the monitor if your checking an email ) as asked in the first post.

[JZA70 R]

lol yeah forget the magnet, wont work.

And yes Hengsta im saying the turbine wheels look different.

[tomvale13]

do ppl chuck the ct9 wheel inside the 12a? I thought it was the other way round for more top end out of a ct9..

does anyone know about using other ct series turbo internals/housings on a ct9?

cheers

[Hengsta]

it definately won't work trying to put a magnet on a picture (not to mention the fact that it may f#*k the monitor if your checking an email ) as asked in the first post.

+1 lol cheers for clearing that up.

mehh well we will see when the turbos turn up if its ct9 wheels or the shitty standard wheels

cheers for the help guys + rep all

[Pimpin_1JZ]

do ppl chuck the ct9 wheel inside the 12a? I thought it was the other way round for more top end out of a ct9..

does anyone know about using other ct series turbo internals/housings on a ct9?

cheers

Hmm, well it is kind of almost going backwards as the CT12A are a ceramic type.

[tomvale13]

Arh,

I have to find out what I've got mixed up as eddy's ct-9 has shat itself and needs to be replaced/rebuilt.

cheers budday

[The Real Roadrunner]

tom, steel turbined supra internals go in after you bore out the starlet rear housing but you need to have the wheel to housing gap about 1.5mm to stop it overboosting even after you bore out the wastegate hole. or just put an external gate on one of my bolt-on mani's.

cheers
linden

[tomvale13]

awesome, thanks linden - +rep and pm sent.

[Dieseltrain]

I thought the Nut holding the Exhaust wheel would be a giveaway!

If it dont look like the stock one, i guess it would have to be rebuilt, and possibly steel wheeled?

[The Real Roadrunner]

there is no nut holding the exhaust wheel.

it is part of the wheel and shaft arrangement ie 1 piece, the only time they come off is when your exhaust wheel say's hello to your cat.