markmn Posted January 3, 2011 Report Posted January 3, 2011 I live in minnesota and wondering if an EGT gauge will tell me if I am running lean in the cold temps? What is a normal range for the 912? I think the book numbers were 1450 to 1670? Is this correct? Has anyone ever changed the main jets for very cold operation? Thanks, Mark
GlennM Posted January 4, 2011 Report Posted January 4, 2011 Fuel has something to do with the exhaust gas temperatures, also. My EGTs are about 100°F lower when I run 100LL. I ran roughly 1410°F and 1320°F EGT yesterday at 5100 rpm, 53°F OAT, and 1800' MSL on mogas.
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