Mine does the same Bickerton, it always bugs me when I'm thrashing it as it doesn't bounce of the limiter :/ it just goes bwaaahhhhhhhh like you said my instant re-action my timing belt was set up for the 8v lupo which I think it may be as for some reason they have the 16v mark and the 8v mark for some reason I've still not got around to sorting it as of yet, so if you have chuck the fixing info my way! Lev.