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Old 01-04-2007, 12:16 PM   #1
Airboy
Scooby Specialist
 
Member#: 72829
Join Date: Oct 2004
Chapter/Region: W. Canada
Location: Calgary, Canada
Vehicle:
2006 WRX
EFR6758

Default "stage 2" 2.5L WRX at 3500' and sea level

Logged some data while I was in Vancouver BC and again back in Calgary using the same maps. IAT was about the same (50F). The difference in MAF reading is ~15% higher at sea level.
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Old 01-09-2007, 01:27 PM   #2
ride5000
Scooby Guru
 
Member#: 32792
Join Date: Feb 2003
Chapter/Region: NESIC
Location: lincoln, ri
Vehicle:
2003 GGA MBP
12.9 / 105+

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wow, surprisingly large difference in air mass.

the density at 3500ft is 88% of that at sea level.
http://bpesoft.com/s/wleizero/xhac/?M=p

the rest can be chalked up to the slight difference in boost level.
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