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      01-06-2025, 12:46 PM   #8
spammysammich
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Drives: 2009 E92 M3 Dakar Yellow II
Join Date: Oct 2021
Location: Edmonds, WA

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2009 BMW M3  [10.00]
Quote:
Originally Posted by tdott View Post
I always wondered what is the best solution to avoid piston slap when cold. Which seems to be a problem with stroker engines using forged pistons.

Would it be better to go with a non-forged piston similar to OEM composition but sized for the larger bore?
I have a stock piston on my work bench and it has Mahle cast onto it. In a brief search, I didn't see anyone offering a hypereutectic cast piston in custom sizes for this car. Given the relatively small volume, I doubt there is one. I would love to be wrong.
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