AGU
K03 spec1 maps should be seeing 17psi peak and 14 held
K03s spec2 = 21psi peak with 18psi held with turbo VE tail off linear towards the redline.
AUMs and ARZs boost spot on 95% due to a far more advance me7 ecu set up and the system using a MAP sensor and load based mapping to control the boost levels, if the car is down of boost for some unknown reason the ecu can compensate (with in reason) to make the lost boost up and power. using the same map on 10 AUM 9 of them will always make reauested power.
The AGUs use the older Motronic 5 ecus (Bosch m3.
which uses duration mapping in milliseconds rpm/MAF to control the power, the ecu cannot see how much boost the car is running, it can record the volume of air going into the engine. The problem with just seeing air flow without map is that the car cannot really compensate for mechanical losses of boost, ie vac/boost leak, weak springs, lazy N75 ect..
On a good working car with the correct mechanical setup the AGU-ko3s map should make a peak of 21psi 240lbft and higher up thr rev range 227-235bhp. The problems with the AGUs are that when using the same mapping on 10 AGU ko3s cars they will all give differing boost characteristics, but in theory they all should make 21psi peak, but some make 17-18psi and some over shoot to 23psi?
Nick
