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Old 06-23-2013, 08:26 PM   #1 (permalink)
ever_green
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Join Date: May 2011
Location: Toronto
Posts: 263

Blueberry - '17 Mazda Mazda3 GS
90 day: 32.56 mpg (US)

EVO - '08 Mitsubishi Evolution MR
90 day: 23.82 mpg (US)
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lugging kills my mileage

For my Subaru, I noticed that I get better fuel economy in a pulse if I make the same amount of power at higher rpm vs. lower RPM at wide open throttle plate.

In short -> 3/4 engine load at 2000rpm is better for me than full load (0 vacuum) at 1500rpm.

I have kept an eye on air to fuel ratio and they are always stoich so long as i don't exceed 3500rpm. the only difference I see on my instruments is higher ignition timing at higher RPMs / lower loads.

Monitoring the "horsepower" gauge and trying to maintain a steady power output has yielded better results than keeping a high engine load during the whole acceleration phase.

Just wanted to share my results and get some feedback. thanks!

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