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Jonez- Please look at mgarcia048's thread "track build 987.1" showing his prep with his engine and his final result. What ever he did was not covering the fundamental issue with his 3.4 m97 motor. He has not opened the case yet to actually see what happened inside, but from his comments, it seems to be a rod bearing. You can see he had as much protection for the oil issue as could be expected, but still it occurred. He did not say his shift points (potential rod bolts failure), or if the last corner at Sebring was a long left hand sweeper, where the frothy oil could have accumulated in the head due to the placement of the oil salvage pump. An additional dual scanavenger pump and a MotorSports AOS to pull the oil forth enriched air from the heads would certainly aided the engine as the accusump never was activated.
I suspect that the oil pressure was affected, but not enough to light up his preset 25 psi red light. He also claims that the 996 swirl pots had nothing to do with the engine failure. His engine had about 25 hours of track time on the clock and about 48,000 miles of daily driving. Maybe prudent Blackstone oil analysis should be done once a year to baseline the bearing minerals that break down into the oil. Again read the articule from RAT/540 regarding engine oil boundry layer breakdown as measured by PSI to prevent rod bearing scarring and which ones offer additional protection when the oil pressure is reduced.
Take a look at the bottom of his Mantis deep sump post #17 of this thread. You can see numerous scratch marks on the face plate, which could be an issue solved by the LN skid plate.
Lots of small details to think about to protect and save you engine.
I suspect that the oil pressure was affected, but not enough to light up his preset 25 psi red light. He also claims that the 996 swirl pots had nothing to do with the engine failure. His engine had about 25 hours of track time on the clock and about 48,000 miles of daily driving. Maybe prudent Blackstone oil analysis should be done once a year to baseline the bearing minerals that break down into the oil. Again read the articule from RAT/540 regarding engine oil boundry layer breakdown as measured by PSI to prevent rod bearing scarring and which ones offer additional protection when the oil pressure is reduced.
Take a look at the bottom of his Mantis deep sump post #17 of this thread. You can see numerous scratch marks on the face plate, which could be an issue solved by the LN skid plate.
Lots of small details to think about to protect and save you engine.