VAMike
Well-Known Member
It's also possible that this is another instance where something was badly copied from the global ranger manual (intended for NA engines available overseas) and not relevant to our engines at all. There have been several cases of that sort of thing, some corrected in later revisions of the manual.Typical loss of power is 3% / 1000' of elevation gain. So the 10% per 1000M is pretty close to the expected actual loss of power in a normally aspirated motor. I think Ford is being a bit conservative with their input
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