I understanhd what your saying tony but the thing is the dyno wont correct for the charge air temp it will just reduce the power output, the acts wouldn't of been 60 on either of them runs im 100% confident of that looking at there set up, heck I ran my old t4 saph at 2.2 bar on a shit dyno with a pathetic fan and it never got to 50d.

what im getting at is the difference it makes with just the temperature sensor location, im not comparing the measured powers, im compareing the difference between the two corrected power figures to there respective measured power readings.

theres a 50 hp discrepancy in the correction to din standards going from 23d upto 58d.