1.8 Turbo

[Atterz]

A T2 is a stupid idea so rule that out, your looking at a GT series turbo of about 25/28 size. The management requirments should be discussed beforehand with your tuner of choice and this will determine the layout and what sensors will be required (wideband lamdas,map requirements, fuel pressure regulator etc). Some more information on the parts required would also need to be found, and again your chosen tuner will have a better idea having experianced varying setups throughout the years.

I dare say you should be able to fit the turbo behind the engine just as the XUDs/DWs do, however take into account heat management as a petrol exhaust is much hotter than on a diesel.