HY30W. I’ll order a T28 blanket with a waste gate cutout and wrap the rest and see how that goes. Found a service manual from Holeset, just no technical data on the thing.Did you mean HY30W or HX30W? Irregardless, they don't actually make one specifically for those turbos. Seems there was a member trying to get a number of people signed up to have some custom made. Other option would be have the turbine housing ceramic coated and possibly also the exhaust manifold. Not a cheap option. Might cost $600 or more for both depending on what grade of ceramic is used.
Actually I took some 2/0 I have and ran it. Thought I had an issue with cable size. I later thought maybe it’s the starter. Well, it was the starter. So I’m actually running 2/0 for the cable. Thanks for the link. They actually have some good pricing4/0 cable ought to be sufficient for most things that walk, crawl, or fly. LOL. That's a seriously big wire. 4/0 welding cable is a little over $4 per foot so not super expensive. Welding cable is often a lot more flexible than battery cables due to the fine strands. Wire and Cable shows that has 2054 strands of I believe 30 ga wire. Here's a link. https://www.wireandcableyourway.com/4-0-welding-cable-class-k.html?utm_source=google-shopping&utm_medium=shopping&gclid=EAIaIQobChMIgeScldqW5AIV9Y5bCh2HoAw8EAQYAyABEgLIX_D_BwE