Quote:
Originally Posted by marsheng
Sorry you are correct, from the web Example: 4" (bore) x .0035 = .0 14 minimum gap. I work in mm so I didn't click that .014 was wrong figure.
I understand the 2.5 and 2.7 are basically the same motor. The 2.7 has a 6 mm longer stroke and the pistons are 3mm lower to fit.
My guess is the rings are the same if you can get 2.7s.
I'm sure there are aftermarket ones available for a few $100. Rings aren't rocket science.
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I`m not sure about the bore, the ring sets for the 2.7 are listed as 86.5 mm standard size. In my 2.5 I measured roughly 85 mm. But here for instance they claim the two engines are the same bore-wise:
https://www.auto-data.net/en/porsche-boxster-986-2.7-boxter-24v-228hp-6710
I`ll check what the manual says about this.