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Originally Posted by Jager
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That little nugget (3 failures out of 4,000 IMS ugprades) deserves its own thread.
But my first question is how many of these egnines have seen siginficant mileage since most cars have had the upgrade in the only the last two years. But that's pretty theoretical because if you believe that an overwhelming majoriity of un-touched factory IMS bearings will not fail, then even if the LN turned out to have a high failure rate in the high single digits, sounds wholly unlikely though, you're still talking about a really tiny group. I mean how unlucky can you be?
But I'm curious to hear about the Boxster Spec racing IMS failure rates. I'll have to dig into those forums.
That's has to be a really well tested group to analyze. I think about the wide range of revvs rather than the vanilla revving from predictable highway driving.