jeffw@sc47
Well Known Member
Is it feasible / possible to have a Lycoming IO-390 built with a lower compression than the standard 8.9:1 ratio? So it might be possible to burn Avgas 91 or 93, or even Mogas non-ethynol.
Edit add 3/13/17 >> Informed by Lycoming Thunderbolt that they can supply an IO-390 that will "run about 200 hp and would be able to run on 93 AKI fuel" they do not recommend octanes lower than 93_AKI.
Edit add 3/13/17 >> Informed by Lycoming Thunderbolt that they can supply an IO-390 that will "run about 200 hp and would be able to run on 93 AKI fuel" they do not recommend octanes lower than 93_AKI.
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