hi all, firstly im sure this has been covered many times, but i cant seem to get the search function working.

i have a 95 wagon, the 2.0 EJ20 AWD jobby.

its got a nasty tapping from the top end, and i intend to change the engine for another pretty soon.

My question, is how much harder is a turbo conversion? I have no problem with the mechanical side of things, but thought i would ask if anything apart from the engine/box, ECU, clocks, has to be changed?

any help would be great

Thanks

Ross