[husker boxster]

Good idea but hasn't happened for numerous reasons:

~ Porsche didn't keep track because they didn't want to have the data incase someone sued (which happened).

~ Many of the failures in the early to mid 2000s had to go to Porsche dealerships for repairs. There was no replacement IMSB in those days so all you could do was cross your fingers and hope it didn't happen to you. If it did, you took your car to Porsche and they installed a replacement engine with the same failed bearing design in it. Since Porsche was the only ball game, you had to take it there for repair. See point #1 on their record keeping.

~ With all the IMS hysteria on the Internet, someone could have a failed coil pack causing a misfire but the owner would be quickly on the nearest forum claiming their IMS had failed. There are numerous examples where someone had a failed AOS and their mechanics were claiming the IMS was bad and the engine needed replacing. Or something else caused the catastrophic failure, such as bore scoring or a spun rod bearing, but everything gets lumped into IMS failure. Actual failures are probably lower than you'd expect due to all the other modes of failure that are blamed as IMS.

There's been plenty written here and elsewhere speculating what causes the bearing to fail and what you can do to avoid it. Notice I said speculate because there is no hard evidence on what causes it or how to avoid it. The best thing is to change your oil between 5-8K mi. The majority of the failures are linked to the Gen II design from approx. 2001-2005. It was about that time Porsche and Mobil 1 were selling the idea of 15K mi oil change intervals.