Thread: Lean Cylinder?
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Old 10-04-2010, 05:25 PM   #22
AQ Motorsports
Former Vendor
Member#: 60836
Join Date: Apr 2004
Chapter/Region: SCIC
Location: Torrance, CA
2006 Mod Class STI


Like jkopinga said; pre-ignition. Melts holes in pistons really quick. Probably happened due to a lean condition and a lot of knock.

This is one of the better write-up on pre-ignition and detonation online:
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