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Old 05-17-2000, 08:39 AM   #1
Scooby Newbie
Member#: 48
Join Date: Jun 1999
Chapter/Region: MAIC
Location: Charlotte Hall, Maryland, USA
1999 Impretza 2.5

Question AFC numbers for replaced intake

When you guys put in one of those nifty AFC with all the fancy readouts, what numbers do you put in. What range of control do you have?

What I have is a stock intake from MAF to throttle body, with a MRT filter setup. Id like to replace the rest too, but, the AFC everyone uses is illegal in STS rules. So I can get my Subaru guys to make some adjustments to the stock ECU, but they need to know what it needs. So if any body can tell me, I can tell them. And how would you go about tuning it from there. Do you all use some kind of monitoring setup, or do you use eyes/ears/buttometer method. What exactly are you looking for?

Thanks for any help.

Silver 99 RS
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Old 05-18-2000, 07:20 AM   #2
HRE | giulio
Former Vendor
Member#: 481
Join Date: Nov 1999
Location: NY USA

your problem is that every settup requires different numbers. you should borrow an SAFC, then tune it. record the numbers. take the safc off and then give the numbers to your ecu guru.

you can use an A/F meter (best way) or the 'blue wire mod' on the afc to tune.

HRE | giulio is offline  

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