Quote:
Originally Posted by RustyLugNut
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Large displacement, low revolving engines do have efficiency advantages over smaller higher spinning engines. At least as far as specific power.
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But that kind of muddies the water. If you are building a train or a ship, then fine, but for personal transportation folks are comfortably getting to and from work on 1/4 liter or less, with emissions control even.
A 1.6l tdi can make 198 g/kwh, to get a %20 improvement in bsfc you have to go to something that has this for a crankshaft, so lets not ignore bsfc vs weight (or minim power required).
