Tuning for High Altitude Performance

[Mark Rosenkrantz]

Agreed,
But with CIS-E, won't the base idle mixture (3mm CO adjustment screw)
somewhat effect the performance at altitude?

Then again, once the O2 sensor comes online, as long as it's in the "window"
of fuel trim, base mixture settings won't matter.  I just don't know how
large of a "window" this would be at 8000 feet.

Mark Rosenkrantz

On Thu, Nov 12, 2009 at 9:17 PM, Brett Dikeman <brett.dikeman at gmail.com>wrote:

> On Thu, Nov 12, 2009 at 7:02 PM,  <b1biker at aol.com> wrote:
>
> > Fellow Listers, the patient is a NA 1988 5000S Quattro. I recently
> relocated from eastern Nebraska
> >, with an elevation of about 2000 ft to central Colorado with an elevation
> of about 8000 ft.
> >I'm looking for tuning options that will help restore part of the lost
> performance.
> >Any suggestions will be appreciated.
>
> Buy a 200q20v.  They're cheap enough that putting any sort of money
> into performance stuff for a 5000 is really stupid.
>
> Brett
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