At the shop i have(well we have) done turbo but i do lots N/A stuff.My cars are well over 250hp naturally aspirated and both are actually my daily drivers.i have close to 80,000 kilometers on my 01 Accord Tureno.The key is strong bottom end and strong top end. I have seen my cousin and a friend homemade turbo a 95 GS-R engine, and it was a daily driver. They didnt really spend much of anything on it. So i kno a good engine is a B series engine. H22A are good. seminglly we get the tried and true for year here in thailand is the H22A, but in the states there were to varients.the H22A1 and the A4 being the revised. well if yu are gonna use on use the A1 cause 90 percent of them were decked blocks. Or use a JDM H22A. If yu run into an A4 or non decked A1 upper cylinder block braces sold by many companies like Race Engineering.This will insure top strength oh the cylinder sleve.Other factors are good bottom end, get new rods with non studded sleves(ones that use bolts) this ensures a less chance of " throwing a rod". and a lightweight and sturdy crank. and pistons that are applicable to take turbo applications and 9.3:1 compression.And a HV oil pump to say the least as well as a metal on copper head gasket or a good head gasket and gasket sets.A respected turbo kit frum a well respected company, boost gauges and turbo timer.