Welcome to the North American Subaru Impreza Owners Club Saturday March 30, 2024
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Engine Management & Tuning > Open Source Reflashes

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 08-29-2009, 06:44 PM   #1
my02turboWRX
Scooby Specialist
 
Member#: 68448
Join Date: Aug 2004
Chapter/Region: NWIC
Location: Ellensburg, WA
Vehicle:
2008 WRX STi
Cobb tunned by Surgeline

Default learning view questions on learned afr's

hey guys and gals!
I have added meth/water to my car and I trying to understand the learning view program learned afr's.
From what I can see I am not only taking some fuel but adding a lot?
Please give me some insight on these numbers. I see the potential in this program, help me use it!
Here is the shot


This is on a 2008 STi XPT STG2 300cc nozzle progressive spray 9-19 PSI (19 target boost)
Thanks!
* Registered users of the site do not see these ads.

Last edited by my02turboWRX; 08-29-2009 at 06:52 PM.
my02turboWRX is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 08-30-2009, 01:23 AM   #2
scoobystas
Scooby Specialist
 
Member#: 26568
Join Date: Oct 2002
Chapter/Region: NESIC
Location: Brighton, Mass
Vehicle:
2003 Yellow Bugeye
Version 8-Vf37

Default

your concern should be the 40+ g/s section. Your running lean so your car is adding 12% fuel. When you go open loop, your ecu will still continue to add 12% fuel so you might not quite be hitting your a/f ratio targets under load and boost.

but richer is safer, while leaner is meaner
scoobystas is offline   Reply With Quote
Old 08-30-2009, 12:12 PM   #3
my02turboWRX
Scooby Specialist
 
Member#: 68448
Join Date: Aug 2004
Chapter/Region: NWIC
Location: Ellensburg, WA
Vehicle:
2008 WRX STi
Cobb tunned by Surgeline

Default

Its a % factor.. that is the info I am after. So I should be able to look at my map tables to understand why this number is so high.
Thank you for the reply
my02turboWRX is offline   Reply With Quote
Old 08-30-2009, 03:54 PM   #4
quazimoto
Scooby Guru
 
Member#: 70395
Join Date: Sep 2004
Chapter/Region: MAIC
Location: Da-boonies,Va
Default

You need to list all your mods. A wideband O2 sensor is the only thing that is going to really tell you whats going on in the "D" range.
quazimoto is offline   Reply With Quote
Old 08-30-2009, 07:20 PM   #5
my02turboWRX
Scooby Specialist
 
Member#: 68448
Join Date: Aug 2004
Chapter/Region: NWIC
Location: Ellensburg, WA
Vehicle:
2008 WRX STi
Cobb tunned by Surgeline

Default

well the only mods I have is a 3" catless DP back to stock muffler , KN filter, water/meth injection

other than those few things its all in the laptop
dyno AFR shows 11.2 clean up top dropping to about 10.5 to redline at 22 psi
I have never delt with water/methanol so thta is why I think I am getting confused at the numbers I see. (meth was recommended by the dyno shop... meth and lower boost to 19)
I have read that methanol and water will throw AFR numbers way off. That is why I am looking for input on these numbers.
my02turboWRX is offline   Reply With Quote
Old 08-30-2009, 08:58 PM   #6
NSFW
Scooby Guru
 
Member#: 140444
Join Date: Feb 2007
Chapter/Region: NWIC
Location: Near Seattle, WA
Vehicle:
05 Stage Free LGT
ATP 3076, 6MT, AVO FMIC

Default

NSFW is offline   Reply With Quote
Old 08-30-2009, 11:00 PM   #7
my02turboWRX
Scooby Specialist
 
Member#: 68448
Join Date: Aug 2004
Chapter/Region: NWIC
Location: Ellensburg, WA
Vehicle:
2008 WRX STi
Cobb tunned by Surgeline

Default

on the nose.. thanks!
my02turboWRX is offline   Reply With Quote
Old 08-31-2009, 04:51 AM   #8
jaxscuby
Sammo Hung
Moderator
 
Member#: 10613
Join Date: Sep 2001
Chapter/Region: South East
Location: N Fla / S Ga
Vehicle:
2002 USDM WRX
WRB

Default

which water / meth kit do you have?
i would follow the manufacturer's recommendation
for afrs.

yes water / meth will show a richening of afr.
so if you're wideband indicated 11.0:0 you're
actually at 12.0:1 without the water / meth.
jaxscuby is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Learning view not opening on new carputer.... sik03wrx Open Source Reflashes 7 03-20-2010 11:00 PM
Learning View Questions Jubert69 Engine Management & Tuning 2 03-01-2010 05:22 PM
Another learning view question (FB related) Kastley85891 Open Source Reflashes 3 04-26-2008 11:27 PM
Romraider learning view table question...... BBBsti LTD Open Source Reflashes 19 04-09-2008 05:29 PM
Learning view - scan - FB if you could Kastley85891 Open Source Reflashes 16 03-24-2008 10:42 PM

All times are GMT -4. The time now is 04:19 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.