Miata Turbo Forum - Boost cars, acquire cats. - Any knowledgeable DSM or Mitsu turbo guys? Need confirmation

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frapjap

02-01-2014 01:44 PM

Any knowledgeable DSM or Mitsu turbo guys? Need confirmation

I'm pretty sure I can do this and have researched the bejesus out of it, but I wanted to confirm once more in case any of you guys are/were DSM guys.

I have a TD05 turbo that I want to replace the turbine wheel shaft on.
I'm fairly certain that I can use a TD05H turbine wheel shaft on it since the housings are all the same. I just want to be sure that the diameter of the wheel isn't changing and that it will not have fitment issues.

Is that correct? If not, why?

matthewdesigns

02-01-2014 06:59 PM

From DSMTuners:

TD05 or TD05H? - DSM Forums

Quote:

The TD05 turbine has the same size inducer but a 1.7mm smaller exducer. Being that all DSM bolt-on turbine housings are cut for the 49.2mm exducer of the TD05H; you cannot put a smaller turbine where a larger turbine is supposed to be and expect it to work.

For which the converse would also be true.

frapjap

02-02-2014 05:06 PM

I'm really sorry man, I really hate to ask for clarification again, but I'm understanding that you're saying the TD05H turbine shaft will work on the TD05, correct?

Apologies, this is the first time I've had to rebuild a turbo and I'm learning as I go.

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