I thought of that idea too, but I think our petrol here in Montana is also
about two points lower than sea level. You didn't mention numbers but
regular unleaded here is 85. And we are only at 4000 feet above sea level.
I couldn't find any info from my old college engineering books on any
calculations. At this point, I'm curious as to whether petrol gets lower
than 85 octane in high elevation areas because I don't recall seeing it any
lower. And I'm thinking that the regular petrol at sea level is 87.
David
67 BGT
71 BGT
At 05:50 PM 7/4/00 -0600, James Nazarian Jr wrote:
>I don't have equations, but I think the gas companies have done that
>already. The lowest octane gas here in CO is two points lower than the
>lowest octane at sea level. Like I said, no formulas, but there is a two
>point drop in the ~6000 feet between here and sea level, so maybe you
>could approximate -1pt per 3000ft.
>
>James Nazarian
>'71 B roadster
>'71 BGT rust free and burnt orange
>'63 Buick 215
>
>"Aerodynamics are for people who cannot build engines"
>Enzo Ferrari
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