Does somebody have a part number for the 46mm version of HX30, i can only find the 44mm versions..
Plus, HX30 has an internal wastegate, i would imagine that to be too small for compound setup. At least then when it is time to get some real power out of the engine.
I missed this. The 46mm was a Deutz application originally. As well as being a bigger inducer, it's got a very big compressor wheel (76.5mm) with low trim (36%) for surge resistance. It will be a little slower to spin up, but unless you're racing that won't matter.
Capacity estimation (by me) here: HX30 Super Compressor Map Guesstimation.
Here's an ebay one, I haven't checked it out enough to know if it's correct and genuine or not: NEW GENUINE HOLSET HX30W 13024082 4051167 2835278 DEUTZ TBD226B 4.2 TurboCharger | eBay
There are a lot of holset fakes and genuine but incorrectly listed on the internet.
The data tag matches almost exactly the photo I have of another HX30W Super. As in the serial number is 1 digit different. Which is very suspicious but could still be correct.
Alcaid on 4btswaps and other forums has supplied many genuine ones.