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2011-2014 Mustangs
2011-2014 Mustang Talk
2013 cyl 8 a problem?
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<blockquote data-quote="Modular Racing" data-source="post: 12303288" data-attributes="member: 18904"><p>Here is the breakdown of the failure to understand it better:</p><p></p><p>At full warmed up temperature # 8 begins to develop hot spots in the chamber</p><p></p><p>The lack of water jacket surrounding the #8 intake port increases further fuel evaporation (causes lean issue)</p><p></p><p>Meanwhile the cylinder # 4 (which has the only temp sensor) fails to see the hot spots in cylinder # 8 and does not adjust timing or add fuel to compensate for cylinder head temperature.</p><p></p><p>Under long full load runs or boosted runs for the supercharged/turbo cars detonation begins to occur. </p><p></p><p>The final result is a broken piston ringland or melted piston in cylinder # 8 only.</p><p></p><p>The MMR head mod addresses the issue on two different levels, it promotes coolant flow around the cylinder # 8, it also allows the sensor on the passenger bank to indirectly sample the hotter cylinder so that the ecu can make changes because the water temps are being balanced at the rear of the engine.</p></blockquote><p></p>
[QUOTE="Modular Racing, post: 12303288, member: 18904"] Here is the breakdown of the failure to understand it better: At full warmed up temperature # 8 begins to develop hot spots in the chamber The lack of water jacket surrounding the #8 intake port increases further fuel evaporation (causes lean issue) Meanwhile the cylinder # 4 (which has the only temp sensor) fails to see the hot spots in cylinder # 8 and does not adjust timing or add fuel to compensate for cylinder head temperature. Under long full load runs or boosted runs for the supercharged/turbo cars detonation begins to occur. The final result is a broken piston ringland or melted piston in cylinder # 8 only. The MMR head mod addresses the issue on two different levels, it promotes coolant flow around the cylinder # 8, it also allows the sensor on the passenger bank to indirectly sample the hotter cylinder so that the ecu can make changes because the water temps are being balanced at the rear of the engine. [/QUOTE]
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2013 cyl 8 a problem?
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