Carbureted cars...applies to some Prepared classes, and SP classes which haven't
converted to FI--a very expensive "upgrade," I expect. So the only ones messed
up
would be the perhaps declining population of Prepared.
--Pat K
Brian M Kennedy wrote:
> At 02:01 PM 9/26/99 , Pat Kelly wrote:
> >Colorado for nationals? The last time I ran our 7 at high altitude (anything
> >over
> >2000 ft, this was a 6000 ft; isn't Colorado Springs somewhere around 5000
> >ft?),
>
> Yes, actually mid-5's at PPIR, but less than 6000. The world starts changing
> dramatically about 7500ft... and its a whole different world at 10000ft.
> But you have a valid point...
>
> >I ran it on the lowest octane available to compensate for the lack of oxygen
> >in the air. Those who ran on high octane had a lot of trouble with
>carburetion
> >(carburetion is a lost concept among the newer cars, but it still exists in
> >older ones).
>
> I'll let those with direct experience jump in on the issue of carburetors.
>
> With newer FI cars, I've noticed little effect... actually 100 degree temps
> have more of a draining effect on my car than 5800ft does. I've heard of a
> few people who have done minor re-tuning of their cars for that altitude,
> but I think most run just fine without thinking about it.
>
> You _do_ use lower octane gas, but you don't even have to think about that...
> "super" gas in CO Springs is 89-91. In fact, for FI cars, the biggest
> problem may be all the unexpecting drivers panic'ing (unnecessarily) when
> they arrive and cannot find a gas station that sells their
> normal 93 octane gas. ;^)
>
> But for all those older cars, ... how about some RMDiv people jumping in?
>
> Brian
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