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Old 10-07-2002, 04:24 PM   #10
d00f
Scooby Specialist
 
Member#: 6000
Join Date: Apr 2001
Location: Ottawa, Canada
Vehicle:
2000 GC8 STi V4 swap
BRP

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Just wondering what sort of AFR you guys try to hit when tuning for pump gas. I just got a WB02 sensor but don't have a bung to install it in yet so I don't know how rich the STi runs in stock form but the nice black tailpipe suggests it runs pretty rich.

From what I've seen watch the USDM WRX in stock form it seems to be as pig rich as 10:1. I've seen tuners lean them out as far as 12.8:1. I'm wondering what your thougths are on this.

-Michael
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