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Old 06-15-2004, 03:45 PM   #1
dch
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Member#: 1057
Join Date: Mar 2000
Chapter/Region: MWSOC
Location: Minneapolis, MN
Vehicle:
2004 WRX STi
Very Yellow

Default Know of a high altitude pass near CO Springs?

Okay Coloradites ,

I'd like to do some high altitude tuning on my rally car before Pike's Peak. Is there a mountain pass close to Colorado Springs where I can get up as close to 14,000 feet as possible and putz with my engine mapping? I don't need a gravel road or anything like that, I'm talking pull over on the side of the highway, do some tuning, drive back and forth a bit, do some more tuning, and so on. Any suggestions with directions from the Springs are appreciated.

Cheers,
-Doug
#88 WRX STi

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Old 06-15-2004, 07:58 PM   #2
no-coast-punk
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Location: Inside your carnot cycle
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1998 RST V8 STi swap
'05 R6 '95 BMW V8 hotness

Default

For high altitude tuning I totally recomend Mt. Evans, it's a bit of a drive from where you are at, but the road is pretty good and paved. Apparently alot of the high dollar OEM's (I have personally witnessed mercedes test mules up there) use Mt. Evans for high altitude tuning. It's a pretty safe road so you don't have to worry about the whole death thing as much, and you can run pavement all the way up to 14,000+ feet.
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Old 06-16-2004, 12:15 AM   #3
mike270
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Mt. Evans is (or at least was) the highest paved road in the world. That is probably your best bet in this area. We have a lot of taller mountains but none that have roads up them.
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Old 06-16-2004, 01:48 AM   #4
no-coast-punk
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1998 RST V8 STi swap
'05 R6 '95 BMW V8 hotness

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Oh yeah... one thing that some sea level folk don't realize is... make absolutely sure your MAP/BARO sensors your ECU is using will read above 10k feet. I've seen the calibration charts for a bunch of sensors and they just plain don't respond above 10k feet. Anybody who has ever tried GM pressure sensors has probably experienced this... the car is REALLY down on power but still running fine until about 11k feet and then the car starts running really rich and crappy. Yet another thing to consider before visiting the land that air forgot.
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Old 06-16-2004, 11:57 AM   #5
dch
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Location: Minneapolis, MN
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2004 WRX STi
Very Yellow

Default

Allrighty then, Mt. Evans will be looked into. Anything lower but fairly close to Colorado Springs just in case it all goes wrong and we're short on time?

Good note about the baro sensors.

Cheers,
-Doug
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