Picking up an A4 2.0T Quattro S-line Special Edition shortly (basically the 220bhp DTM engine).
Anybody Revo'd this engine?
Is it worth £600 for an extra 35bhp?
What does 35bhp 'convert' into, in real terms on the road?
its not the hp gains with turbo cars that make the difference - an oem turbo can only flow so much at high revs due to the requirements for low lag so they use small turbos - and power is proportional to revs.
however what you do get is a huge increase in the mid range torque which is the kick in the pants when you plant your foot to overtake.
so with a chipped car you may get 30-60lb/ft increase torque in the mid range but the boost drops off up the revs range over 5000-5500 revs, so a smaller increase say 25-30hp at the top end.
is it worth it? definately yes - theres nothing like the rush of a big boost, big torque turbo coming on.