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      09-25-2013, 11:22 AM   #16
Rob@RBTurbo
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Drives: '08 335I AT, '14 M6 DCT
Join Date: Jan 2008
Location: St. Louis, MO

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Quote:
Originally Posted by stratos_335 View Post
No, both turbos are fine, I checked them myself a few hours ago.
Sorry about your misfortune stratos. As I said via email feel free to send the RBs back in if you'd like them rebuilt for good measure (highly recommended). Especially now that you have some time available to get it done while your working on the engine remedy.

Quote:
Originally Posted by stratos_335 View Post
put new OEM pistons (yes they are forged) and re-assemble the engine.
Please take a pic of the underside of the piston. No forged piston has ever been documented for the N54 so it would be interesting to see this portion. Based on the pics provided it appears to be just like the other cast N54 pistons I have seen. Based on the failure also leads me to believe it is cast. Nothing wrong with Cast pistons, in fact they have proven to be able to withstand quite the load- just want to clear up the "yes they are forged" before it spreads like wild fire.

Rob
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