Quote:
Originally Posted by Malvernmike
What sort of % increase in mpg might I expect from a well designed ~1.25m long Kammback?
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I saw 7% @ 100 km/h from my ~50cm long partial Kammback plus rear wheel skirts.
Those who have done a full length boattail report 15-20%, iirc. That's just the reduction of fuel consumption from aerodynamics alone. The improved coasting will allow you to take better advantage of other hypermiling techniques, so the overall increase in FE will be greater.
BTW Have you looked into a trans swap? Maybe there is manual6-speed, or a taller top gear to reduce rpms on the highway?
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e·co·mod·ding: the art of turning vehicles into what they should be
What matters is
where you're going, not
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