OK,. having spent the last 30 mins digging out various plots, here is Bumble from start to finish. Also worth nothing that all of these are on the same dyno.
This is over the course of about 18 months... which is a bit mental really. I get bored easily...
Plot of K04 with Revo Stage 1 dialled right up. This was (sadly) before the Badger 5 TIP arrived on the K04 scene.
Next up is a comparison plot between the CR 2283 non clipped RS6 turbine Hybrid K04, with a stock K04 Manifold (Blue) and the 034 POS High Flow Crack-after-5-mins manifold (Red).
OK, next, same hybrid as above (CR 2283 non clipped RS6 turbine Hybrid K04), this time with the XS Power/Relentless K04 High Flow manifold and also with and without WMI and boost changes. Red is pre WMI and more boost, blue is with WMI and less boost.
Lastly, a comparison of the two turbos that have since followed the hybrid K04. Orange is the PE1820 IHI Hybrid roller bearing turbo - it actually made a max of 370 BHP. Green and blue are the FP Green running less and slightly more boost, but only by about 1-2 PSI.
So, I have been through a fair few in the last 12 months if we are being honest.
There will be more to follow as well as I am in the process of ordering up a nice shiny new inlet manifold.... Hoping for some additional ponies as all of my plots with bigger turbos seem to follow the same line, leading me to suspect that there is a constant restriction with the engine at higher revs causing it. We shall see.
In every graph above the Torque dies off at 6K - and that is across a hugely different range of turbos and setups. The constant has been the engine config. Time for a change of that me thinks...