I'm trying to fill in some knowledge gaps and verify what I've read.

Our OE turbo is a MHI TD05H-152G6-12T, TD is the type of turbine house, 05 is the size, what does the"H"mean? Twin scroll?

152G6 refers to the compressor housing and 15G is it size. What does the "2" and "6" refer to? Is there anything that designates that it's a Evo X housing?

What does the 12T indicate?

There are off brand companies like Kinugawa, Mambatek and TRITDT that make MHI turbo parts cheaper then anyone else. Aside from, "you get what you pay for" how are their parts? What is your personal experience with your purchase?

 

Personal experience is that I had good luck with Kinugawa for the CHRA, Compressor, Turbine. I didn't trust them for the turbine housing (metallurgy risky) or actuator, and so I can't speak to those components. I am a huge fan of the kinugawa STS 9 blade TD05H turbine, and most people that actually run it, love it. For instance; there are a bunch of Forced Performance 71HTA fanboys on this forum. That turbo uses the stock MHI TD05H 12 blade turbine, and a compressor that is a HAIR different than a 20G compressor (based on inducer and exducer). Yet people make 450whp+ on that TINY turbine wheel. The STS 9 blade TD05H lets the hot side breathe better at high RPM but without sacrificing spool. In my build thread linked below there is a thread linked that covers my experience with a kinugawa turbo (again: minus turbine housing and actuator). Now, going back a number of years the QUALITY CONTROL of that company was horrible and once you have a bad rep it is hard to shake. IMO I am not sure I would even use them for turbines larger than a TD05, because the stresses involved increases exponentially and there is less room for error in the casting of the inconel turbine. One way to get an idea how good the cast is, is to pay attention to how much material was removed from the turbine wheel center hub. If it has a CRAZY amount of material removed; you can bet your bottom dollar that there is a void somewhere in one side of that turbine. If it is at the root then your looking at a critical failure in your future. With the small TD05H size, perfection of the cast are not as critical because the forces are not extreme due to the lower centrifugal force.
I have used TWO of their STS TD05H 9 blade turbines, and both have been fine to 30psi and did not have a large amount of balancing material removed. Likewise the compressor housing, CHRA, and 11 blade billet GTX style 20g compressor all held up fine for 20,000 daily driven miles and many track runs (1/4 mile).

Hope that answers some of your questions...

 

 

Yes, and for all of my turbos I use pureturbos in CA, because they VSR balance the entire CHRA. Good prices and there customer service has been top notch.