The 1.4 HDi I have is very slow to accelerate until it "gets on the turbo" as it were. Ok when the revs get to near 3k you then feel the difference. There is no play in the turbo and it does not smoke. I am assuming it is normal. Ok for pottering about the town but a bit daunting if you need to accelerate on a dual carriageway as it means dropping a couple of cogs to get the revs up. The turbo is tiny so I was wondering if there were a one that would be a straightforward replacement from another engine size that would help improve the accel. Is the 1.6 any bigger and would it be a bolt on job for example?