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Originally Posted by Spinnaker
Just my 2¢. If I were to spend $18k for a new engine, I think I would look into some of the other alternatives besides putting back in a crate engine that has known faults and weaknesses. There are other engines that cost roughly the same that have many changes and updates that address those issues. Anyone who frequents this forum knows where they are from. I won't name them so it will not appear that I am promoting their products and services, but if I was going to spend the money on a new engine, it won't be at the dealer.
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Your may be right. But I had consulted with 2 independent Porsche machanics in my area that both recommended the crate engine (probably out of an inherent distrust of fooling around with nature). The rebuilders involve shipping long distances and very long delays (I'd miss the entire summer of driving my Boxster). There would be the uncertainty that my core would be rebuildable until it (actually the whole car) was shipped across the country and examined by the rebilder, whereas I was guaranteed by the dealer Porsche would not charge me a core fee. I am told the Porsche crate engine comes with virtually all of the attached external parts new (I don't know how much of this is supplied new by the rebuilder and how much is reused). The Porsche engine comes with a 2 yr warrantee vs 1 yr for the rebuilder. And finally, while there is lots of data (or at least many internet reporst) on the (relatively) small failure rate of the IMS in original Porsche engines, I haven't seen any reports of the success rate of the IMS modification - the numbers are probably too small to be meaningful relative to the much larger population of stock Porsche engines.
At least this time around I'll know to change my oil much more frequently, drive harder without periods of disuse and listen for bearing noises. Perhaps periodically remove the IMS bearing plate and inspect. And pray. What should I really have done? Sell the car for parts. But human beings are inherently illogical.