Welcome to the North American Subaru Impreza Owners Club Sunday August 18, 2019
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Go Back   NASIOC > NASIOC Technical > Engine Management & Tuning > UTEC

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. 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 09-25-2003, 10:45 PM   #1
Scooby Specialist
Member#: 10041
Join Date: Sep 2001
Location: Marietta, Ga.
2015 WRX Limited CVT

Default UTEC & Tuning Questions

1. Does having a wideband O2 sensor mounted in a catless uppipe cause false readings due to higher temperature and pressure? Would the reading be to lean thus in real life the A/F mixture still be too rich?
2. Is there a PNP wideband O2 sensor for the UTEC? I heard TurboXs was coming out w/ one specifically for the UTEC but it might just be a rumor.
3. Can adding too much fuel cause knock? Would the ECU generate some weird calculations due to the increase in fuel from the base Stage 2 map + increase in timing to cause knock?
4. What is the timing advanced most people are seeing as compared to the base Stage 2 map? They range in the low 20s but I heard some people got it up to 28+/- w/ no knock.
5. Are most people running negative fuel variables once the car is tunned for a learner A/F mixture? What is the A/F mixture in which people are targeting for ... 11.2:1, 10:2, 12:2:1, etc?
6. Has anyone used the extra downloadable software for the UTEC to log whp and ft/lbs on the road and not at a real dyno? Are the reading pretty accurate?

These factors are all assuming tuning in mid 50s w/ a mean target of 16.5psi max in 4th gear. Anyone w/ real world insight would really be appreciated. Thanks.
chuglobal is offline   Reply With Quote

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
UTEC fuel tuning question Davenow Engine Management & Tuning 2 02-27-2003 01:46 PM
New UTEC software/tuning questions RIDEwrx Engine Management & Tuning 48 01-23-2003 02:20 PM
UTEC Fuel tuning question? muddywaters Engine Management & Tuning 2 01-17-2003 08:44 PM
TXS UTEC sowtware/tuning question RIDEwrx Engine Management & Tuning 1 01-12-2003 06:47 PM
UTEC fuel tuning question rwroth Engine Management & Tuning 2 01-02-2003 06:25 PM

All times are GMT -4. The time now is 09:47 AM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2019 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.