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Old 11-15-2010, 10:51 PM   #23 (permalink)
dcb
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pimp mobile - '81 suzuki gs 250 t
90 day: 96.29 mpg (US)

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For some reason turbos seem to help efficiency on diesels, but make it worse on gassers as compared to normally aspirated. I haven't quite thought that one through yet.

Even the Rutan Voyager that flew nonstop around the world was normally aspirated. It also was essentially true multi displacement, with a 200 in back running for the whole flight and a 240 up front to help w/takeoff and initial flight. I haven't seen any cars try the multi-IC approach yet.
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