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In cylinder 1 only I noticed this ever so slight pitting, tge word potting even feels a little bit too strong a word but I thought I would take a picture and put it to the professionals (you ).
Does this look fatal or is there an amount of this thats acceptable?
Pitting is a result of detonation, which is also a cause of head gasket failure. Id suggest something is wrong with your tune and needs to be fixed or the same will happen again.
Ouch! I would get your injectors checked for flow rate, see if one is drastically low. Get AFRs logged too when its all back together too. Is the ECU stock or is there a map/chip involved here?
As for whether that is acceptable I'd think not but there's a few round here that can answer better. If its really slight perhaps a rehone would tidy it up?
Key point here is to find out if the pitting is wearing the piston ring. If so you should get it sorted or you'll just be losing compression, oil, and power.
If its not then you'll probably be fine. Does it feel rough to your finger tip?
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