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altitude

  1. 2014-2018 Mazda 3 Skyactiv Engine and Performance
    A little thought experiment for discussion... From what I've read, each 1000 feet of elevation equals about 3% power loss. So at my home near Denver, CO (elevation ~5500ft) total loss is about 16.5%. Which means: My 2.5L 185HP Mazda 3sGT = 155HP A 2.0L 155HP Mazda 3 = 130HP My previous car...
  2. 2014-2018 Mazda 3 Skyactiv Engine and Performance
    Hi all- I'm in the Denver area and I live at about 5500ft above sea level. Due to the thin air (= less oxygen), there's probably a 15-20% power loss here compared to sea level for a naturally aspirated car. This explains why my old Corolla was fine in Florida, but could barely struggle uphill...
  3. 2014-2018 Mazda 3 Skyactiv Engine and Performance
    This may be a stupid question, but bear with me :) I live at altitude, like 6000ft. I am content with my 2.5L, but can't help but feeling like I'm missing out on its true potential. I heard somewhere that at this altitude, NA engines only produce about 75% of the power they output at sea...
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