I've got a 2001 S3, I bought it with a knackered turbo and replaced it with a CR K04 so I never got to drive the car before the turbo failed, now that I have done a few miles I find it quite laggy in that it is flat as a fart below 2200rpm then it's like a switch has been flicked and you're away but the change is quite aggresive.
Jaaba have live mapped it and it has FMIC, boost controller etc. etc. and print outs for 290bhp, all of this was done before I bought it.
My question is, is this quite normal or should it be, as I think, more progressive? And if it should be more progressive, what are the likely suspects for it not being?
I had it on VAGCom a little while back and I am sure it showed a single N249 fault, though it could have been N74 come to think of it!? I am also thinking could it be the FMIC, if it is too big surely this will cause lag (it runs max boost of anywhere between 1.4 and 1.7 bar usually depending on the boost controller setting)....?
Your thoughts appreciated!!!