I should have known that they were large turbos, I've never heard of Holset making a small one. IMHO that size turbo will be too big for what you want to do (FWIW I have a T50 that's about that size) I would expect alot of lag, and a major boost creep problem with the lower boost levels (anything 1.5 bar or less).
Sorry for taking so long to get back to you, I've been away and my laptop was being uncooperative.
