joblock Posted September 20, 2020 Share Posted September 20, 2020 Opinions please. Is it possible to hurt a blackbird engine by running it too lean at 2% to 10% throttle opening? By too lean I mean mid-to-high 15s. Quote Link to comment Share on other sites More sharing options...
tomek Posted September 20, 2020 Share Posted September 20, 2020 (edited) Yes,you can lean it out to the point of misfire. Your mpg will improve. Engine won't mind it. Edited September 20, 2020 by tomek Quote Link to comment Share on other sites More sharing options...
superhawk996 Posted September 20, 2020 Share Posted September 20, 2020 A few guys here run a lean cruise tune and report increased MPG. I'm guessing you could lean it to the point of misfire without any engine damage. Someone may come along with a tune they use so you don't have to experiment. Quote Link to comment Share on other sites More sharing options...
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