Quote:
Originally Posted by oil pan 4
On lean burn you only melt pistons and damage stuff if you don't know what you are doing.
All that happens at wide open throttle.
I ran a lean burn tune for cruising for 9 months. I had it running 18:1 at idle, 16:1 for cruise, 14:1 for mild acceleration and 13:1 flooring it, with a carburetor and aem wide band O2 meter. I was able to get 10 to 20% better fuel economy with no loss in power.
Where is the down side?
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Well the engine builder I have in mind for my build also performs Dyno Tuning with emissions compliance testing, so maybe I can suggest the fuel ratios you have used and see what he can do. Any fuel savings is good fuel savings, especially when I can enjoy those times I do floor it for some thrills.