Welcome to the North American Subaru Impreza Owners Club Saturday September 22, 2018
Home Forums 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.
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 11-02-2017, 05:21 PM   #1
pedu123
Scooby Newbie
 
Member#: 460290
Join Date: Dec 2016
Question remap after decat

I eliminated the cat in my Impreza of the 2002 sti and I have to remapped to avoid turning with higher turbo pressure and risking it detons.
What tables should I vary and how should I change them?
* Registered users of the site do not see these ads.
pedu123 is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 01-22-2018, 04:37 PM   #2
Nettalp
Scooby Specialist
 
Member#: 93812
Join Date: Aug 2005
Chapter/Region: SCIC
Location: Huntington Beach,CA
Vehicle:
2004 Wrx wagon
Platinum Silver Metallic

Default

Since you opened up the airflow in your exhaust without any calibration your going to experience boost spiking and possible leaning out. I'd start by reducing waistgate duty cycle in the appropriate RPM cells to counter the boost spiking.
Nettalp is offline   Reply With Quote
Old 01-28-2018, 07:26 AM   #3
kein0303
Scooby Newbie
 
Member#: 459380
Join Date: Dec 2016
Default

After decat you need to put a Wideband o2 sensor on your downpipe and do a log to analyze your air fuel ratio.
You need also to put the original rear sensor at the free air.
After correct your primary open loop fueling or your boost target maps and WGDC map depend of your logs.
For SP98 with TMIC the ideal air fuel ratio is between 10.5 and 11.
kein0303 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

All times are GMT -4. The time now is 04:59 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2018 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.