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Jake Raby · 03-01-2015, 07:09 AM

Less than 1%, IF its not taken to the track. On the track the M97 bearings have the highest failure rates, by far.

When Porsche added bearing diameter, and increased surface speed of the bearing, that was great for lower RPM street service, but horrible for sustained high speed operation. I have a directive about this, if you email us.

03-01-2015, 07:09 AM	#4
Jake Raby Engine Surgeon Join Date: Aug 2008 Location: Cleveland GA USA Posts: 2,425	Less than 1%, IF its not taken to the track. On the track the M97 bearings have the highest failure rates, by far. When Porsche added bearing diameter, and increased surface speed of the bearing, that was great for lower RPM street service, but horrible for sustained high speed operation. I have a directive about this, if you email us. __________________ Jake Raby/www.flat6innovations.com IMS Solution/ Faultless Tool Inventor US Patent 8,992,089 & US Patent 9,416,697 Developer of The IMS Retrofit Procedure- M96/ M97 Specialist