Long overdue update on this ...
On the 10th October i had a Helix Organic Clutch, Single Mass Flywheel & Quaife differential fitted. As it was in the air, i also got the garage to do an oil change. Unfortunately, it would appear that they overfilled it by circa 0.5-1.0 litres as by the time id got to my destination after collection, the car was surrounded by a lovely cloud of blue smoke after warm idle.
The full story is here:
http://www.minitorque.com/forum/f18/r56-fjcw-oil-overfill-144865/ but yup, lots of oil here:
Long story short, after 3 weeks away & driving around in a standard R56S, i finally got the car back last week after they took apart the top end & changed the valve stem seals (no cost to me obviously). I also paid to have the full timing chain replaced & everything de-coked whilst it was apart. So yeah, lots of things changed as of late ... probably best to sell it & buy something else 😂
Having fitted the Quaife, it really highlights the difference in power delivery between the R53 & R56, with the torque of the latter giving quite amusing direction changes if you give it a bootful mid-corner - its literally like someone has grabbed the front end and pulled it around the corner for you, very quickly! Torque steer is also still quite apparent. In effect, its really quite a challenge to keep in a straight line, especially on a bumpy road. Its f*cking hilarious lol.