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April 20, 2024, 02:30:21 AM
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Author Topic: Know Your K-series  (Read 21189 times)
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NVA-AV6
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« Reply #15 on: May 30, 2009, 06:07:08 AM »
^If you say so, but now it makes alot more sense why I have had several EJ257s come in with blown ring lands and now they are all running between 12.2 and 12.7 AFR at WOT with no issues.
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« Reply #16 on: May 30, 2009, 09:04:58 AM »
I've heard of ringland's going out on these motors but I didn't know it was caused by running rich. Well, from what I've read here just confirmed what you have said.

http://forums.nasioc.com/forums/showthr ... p=26781110

12.5-13.3 is deemed safe and that running at 11 being "considered safe" can cause gas to build up on the ringland's and if/when that ignites, will destroy the ringland's.
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