Welcome to the North American Subaru Impreza Owners Club Thursday March 28, 2024
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo)

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 12-05-2012, 12:49 AM   #26
pet3r
Scooby Specialist
 
Member#: 283134
Join Date: May 2011
Location: AZ
Vehicle:
2015 STi LE
EFR7163 500whp/550wtq

Default

Stephen definitely knows what he's doing. I didn't read all the responses, but it sounds like you might have hooked up the EBCS incorrectly.

What are the other mods on the car?
* Registered users of the site do not see these ads.
pet3r is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 12-05-2012, 08:52 AM   #27
Tripintaz
Scooby Specialist
 
Member#: 245218
Join Date: Apr 2010
Chapter/Region: South East
Location: FL
Vehicle:
2013 STI Limited

Default

Quote:
Originally Posted by mikemike616 View Post
Yeah I actually thought that might be the problem initially but it just didn't make sense to me that colder temperatures would result in lower boost. The weather has gotten continually colder since the tune was done. I'll email the tuner. How do I know if my tune is locked?

As the air gets colder and denser it becomes easier for the turbo to make more boost. To combat this and keep the boost constant the ECU will reduce WGDC's based on intake temperature. If you install an aftermarket EBCS the WG does not have to work as hard to reach boost since it is now in interrupt mode so generally your WGDC table is lower than stock.

Now the TD table for intake temp lowers WGDC's by total percent based on how low the intake temps get. If these tables are left stock the ECU will pull out too much WGDC because the stock values are now too aggressive. If you need less WGDC to reach boost target, you also need less NEGATIVE WGDC Compensation as the air gets colder. Basically, the IAT vs WGDC compensation table is possibly too aggressive.
Tripintaz 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 09:28 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.