Quote:
Originally Posted by gmd2003
No offense to guys with the P3 gauges but they have been pretty inaccurate. Several people with them in supercharged Z4M's have not gotten accurate boost readings . BMW technical documents are not incorrect , there is also a video with the head of M engineering discussing the S63TU in which he describes the differences between the S63TU and S63 . And it's pretty clear that very few cars are making only 560 HP. The main reason it's running a higher boost is efficiency not power though . If you change the tune then obviously a lot of power can be had without upping boost.
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Seems a bit weird, that would mean the ODB port is reporting incorrect information? From my understanding, other implementations (such as the wireless one that you use apps on your smartphone to see), work the same way?