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Cracked Piston & Misfiring on 55K Engine HELP!

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Old 12-07-2008, 09:49 PM
  #26  
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E55
Originally Posted by mkonei
DO NOT use cast pistons on a forced induction car....thats a recipe for disaster.
OP...Did it brake the near the compression ring? excessive carbon buildup on the piston will cause detonation. If the engine was burning oil, that will cause detonation as well. detonation = broken ring lands


i was talking about the factory cast slugs. forged pistons are awesome. but, most people wont need that until you start adding some serious boost.
Old 03-18-2009, 10:09 PM
  #27  
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W221 S65 AMG
Originally Posted by AMGTestDriverNJ
guys, what happened?! I need your expertise come back!
So what was the final outcome and resolution with your car?

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