> How is it that a 435hp 378 cu in LS3 in a new Vette can get 28mpg hwy,
> yet a 300hp 2 liter EVO or 2.5 liter WRX STi can only get 23-25 hwy???
> They're small engines, but they can't need boost to maintain hwy speeds, can
> they?
One reason might be that people needed the Vette to make decent MPG in
order to convince SWMBO to let them buy it, therefore GM put a lot of
effort into that 6th gear being very tall and the engine management
willing to optimize for that. OTOH, NO ONE buys an STi for the
mileage, they buy it for the crazy factor ;-) Subaru is probably proud
of the mileage it doesn't get. Take a look at the demographics of the
purchasers...
David L
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