Quote:
Originally Posted by JStang
Quote:
Originally Posted by 330indy
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?
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I had my intake valves walnut blasted at around the 60k mark. Here's what they looked like before and after:
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Wow looks thick. Are you running Shell V-Power, or....... ?