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One of the guys on the Cayman board had a connecting rod bolt failure--due to an over rev--on a motor that had about 40K. 7300 rpm for 1/2 second--boom.
After the engine was torn down, IIRC, he mentioned that that there is a consensus that these connecting rod bolts will strech over time and that this is really one of the big weak links in the motor for people that do track time and tend to run the motors in in the upper rpm band. His take away was to keep rpm's down under 7K--more in the 6500 range-- since the power drops off above that anyway.
Any thought on this?
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2013 Boxster S
2006 Boxster--sold
1999 Boxster--sold
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