[T2] Carbs and change if altitude

[Jim Denton]

Pinging is mostly a full throttle phenomenon at or near sea level, when you
are at elevation as far as the engine knows you are at sea level but not
opening the throttle fully while at the same time running a bit on the rich
side.

On Sun, Mar 29, 2015 at 8:17 AM, MUTS . <muts at verizon.net> wrote:

> I agree with the advancing of timing, but always wondered why gas bought
> at altitude has less octane, which at increased levels (premium gas) is
> supposed to lessen chance of pinging?  I realize that the same volume of
> air sucked in will have less O2, so you will run rich and pinging on
> advance is less likely.
>
> MUTS  = Michael's Ultimate Thumb Saver oboe support
> 93 Chevy Roadtrek 210P
> 78 VW Westfalia Camper
>
>
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