Quote:
Originally Posted by roflwaffle
Motorcycle engines have crap BSFC compared to larger car engines due to their power to weight ratios. No reverse gear isn't a big deal since we can always just use an electric motor for that, but it still may weigh more than a reverse gear in a manual trans.
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An extra gear in the transmission weight very little since the shafts , casing , lubricant shifting rails and so on are already there for the other gears.
BSFC is a stand alone measurement and is not related to weight.
High or low BSFC readings reflect the fuel consumed for an engine bolted to an engine brake (dynomometer).
This is normally measured in pounds of fuel burned to produce one horsepower for one hour.
Pete.