ct26 turbine wheels, JDM ceramic versus USDM steel, differences? Are they noticeable or negligible? Options

[Darkchylde]

Soooooooo, I have had to send my 26 out to be rebuilt and in the process have found that the turbine wheels need to be changed. The shop that has the turbo says that they can't get the JDM ceramic wheels so they will have to use steel ones.

1) how will this affect my spool time/ Lag? (new to forced induction, understand the basics but am still a little fuzzy on the intricacies)

2) anyone know where to get the ceramic wheels?

3) any one have a JDM importers # or a 26 or 20b they can spare?

Thanks for your input and assistance all.

[easternpiro1]

glad i stumbled onto this thread. I so happen to have a spare ct20b (4th gen) but hearing you guys talk about shattering turbines makes me not want to sell it.

from all the info ive been told, ceramic= lighter and that = quicker spool time. IIRC mine spooled at about 2300rpm it was an immediate kick in the crotch.

and i think i heard jim or death say that the steel wheel is MUCH more suited for higher boost as it wont shatter, but you would sacrifice spool time. IMHO i dont think the spool time difference is alot. maybe 300-400rpms? im assuming on this point.

So to clarify, the ceramic wheels will shatter, but under what load are people shattering them? i want to know because i plan on upping my boost to about 20psi when i want to have some fun, and keeping it stock 15psi when im cruising.
I also plan on installing the AEM FIC to go with the devils own kit i bought.

My power goal is about 330 and im satisfied. ive heard talk of a ct20b beign able to do better than this, but i dont want to push it with my stock 550 injectors

im REALLY sorry to thread jack but im seeing alot of knowledge on the ct20b in this thread and thats exactly what i need to absorb

good luck with your build darkchylde!

This post has been edited by easternpiro1: May 3, 2011 - 11:53 PM