Quote:
Originally Posted by TedV
I’ve heard folks talk about different fuel maps programed into different bikes. If that is the case then there are many BSFC maps depending on tune, so no easy button on this one.
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Changing the fuel map is only one aspect fuel efficiency and wouldn't be the major one assuming the maps are around 14.7 to begin with. I think cam timing and gas flow rates/ pulse tuning are the major considerations. Much of which is fixed in the engine design. Along with heat loss from too much combustion chamber area from an engine that is unnecessarily large in displacement. Which also runs at higher intake vacuum due to having too much peak power for the job.