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Re: High Altitude Turbo Bar Question



   I live and drive my '87 5KCSTQW at about 5500' or more in the Ft. Collins 
   and surrounding areas in Colorado. The most I've ever seen my turbo boost 
   go on the dash display is 1.1 bar.

   I was wondering if this might be just a function of the atltitude. I was 
   wondering what others at altitude have experienced.

   Here is a bit more info which might help:

   1. When I turn the car on, after (or before?) it says OK, it ususally says 
   the boost is at .7 or .8.

Your "manifold air pressure" is at .7 or .8 bar, which tallys nicely with
.4 ("or so") of "boost" driving your manifold air pressure to 1.1 bar peak.

   1. Is it possible the display is not showing accurate reading? My MPG 
   display usually shows I get 4-5 MORE MPG than I actually get.

It's an Audi, I wouldn't trust anything remotely related to electronics
any farther than I could pick up and throw the car. But the numbers are
at least in the right ball park (maybe a little low??? anyone know the
formula for height/altitude vs air pressure?)

					-RDH