JRutter - thanks for the dyno info! Sounds like a very cool dyno.
HPA - thanks answering on the OP's question / thread topic! Regarding my speculation comment - what I meant is that the topic of how Haldex transfers torque is till confusing (at least to me) so would be nice to understand it better and not have to speculate as to how to interpret the dyno plot.
When I first posted the dyno plot, I was assuming that it basically "proved" that under normal acceleration load (not just in loss of front wheel traction, but "normal" meaning all 4 wheels have equal traction) that X% power is ALWAYS going to the rear axles via Haldex, and that the Gen 2 controller allowed you to shift the amount of torque that is ALWAYS going to the rear so that more goes to the rear. When comments were posted about dyno plots not necessarily reflecting real driving conditions, I then assumed that the front and rear drums were not connected and that this would make Haldex think the fronts are slipping and would cause max power to be routed to the rear, thus the controller only changing what the max power transfer was during front slip conditions.
So... there seems to be allot of speculation around what Haldex does / does not do, what the term "slip" actually means / how it applies, how representative (or not) the dyno plots are of how torque is applied to the pavement and so forth. Or to ask using a hypothetical example scenario:
In a 500 yard/meter strait line acceleration test starting from 0 MPH with all 4 wheels having equal traction (dry, warm, clean asphalt, good tires on the car so really good traction), using 80% throttle will the % of torque sent to the rear be roughly equal to / represented by the dyno plots through the entire distance / duration of the acceleration?