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Old 03-04-2009, 01:49 PM   #10 (permalink)
Shawn D.
Harebrained Idea Skeptic
 
Join Date: Jun 2008
Location: Alpharetta, GA
Posts: 180

The White Car - '84 300td
90 day: 28.84 mpg (US)

The Blue Car - '86 535i
Last 3: 23.86 mpg (US)
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Quote:
Originally Posted by Southcross View Post
even if the increase in r/c doesn't yield an equally significant increase in MPG... should increase the power output into the "fun level". Considering the same engine (Euro spec) with 2pts more pts of compression yields 30-35 more HP (also has larger valves, but not significantly larger). An increase of only 10hp over the present engine, especially at this altitude, is rather significant.
I'd bet the Euro version also has more agressive timing and required higher-octane fuel.
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