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.

[Darkchylde]

From the look of your profile pick Delusionz you have the GT-4 setup, I don't I have a FMIC instead of the top mount that you have, so I have to "clock" or rotate my compressor housing. When you do that you have to remove the waste gate actuator from the housing because it can either no longer operate at that angle or because of clearance issues with the hood and or coolant lines I believe. When you do this you have to make a bracket plate that is connected to the trans bolts, the spacing compared to that of the original mount point on the housing is shorter in distance than the original placement. Thusly you have to bend the actuator rod to a shorter overall length. That length being 7 + 3/4". Either my actuator rod is too long or the plate isn't rigid enough to withstand the movement. ( Again as before no sarcasm or condescension, IF you already knew this I was just trying to give an in depth explanation)

Brenton1919: I have checked the down pipe and measured the tolerances as well as removed my O2 sensor and visually inspected the movement of my waste gate. I peened the inside of the down pipe to insure that I had an extra 1/8" of room. 1" in from the edge of the flange is where the waste gate sits and it rises about 1 + 1/8" above the flange edge, so I have made extra sure that there are no clearance issue, thank you for the reminder though.(Same as above, no sarcasm, just information)

On a side note, I need to start using other forms of letting people know that I am just explaining, these side notes make me sound all sheepish. So raaaaaaaaaaaaaaaaaawwwwwwwwwwwwrrr, piss off and stuff!

This post has been edited by Darkchylde: May 11, 2011 - 12:23 AM