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      12-15-2013, 02:11 PM   #362
G80indy
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Drives: Z3, E46, G80
Join Date: May 2005
Location: Indy

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Quote:
Originally Posted by JStang
Quote:
Originally Posted by 330indy View Post
question:
How are the owners of the current engines, N54, N55,etc. with high precision/direct injection doing for clean intake valves?
any issues with that over time?
Thoughts on that aspect of maintenance for the S55?
I had my intake valves walnut blasted at around the 60k mark. Here's what they looked like before and after:



Wow looks thick. Are you running Shell V-Power, or....... ?
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