Well, you'd need a new exhaust manifold to power the turbo.. Probably need a whole new exhaust infact, larger diameter for better flow. Then you would need to lower the compression ratio in the engine by changing the pistons, otherwise the compression ratio would be too high and the fuel would pre-detonate. Then you would need to bin the ECU and get an aftermarket mappable ECU hooked up, so the thing would run.

Then you need to start thinking about cooling. Your engine oil will also now be cooling/lubricating the turbo, will the standard heat exhanger and radiator be efficient enough? You might need to mount an oil cooler somewhere. And you'll want an intercooler as well to keep inlet manifold temperatures down.

Now, you might find you start running lean, so you'll have to think about bigger injectors, and then possibly a bigger fuel pump.

Are you much of a home mechanic? Could you do these sort of jobs yourself?

It is a very big job.. Would the clutch and gearbox handle the torque as well?



EDIT: I think Autodelta do a turbo conversion for about £5k..