Welcome to the North American Subaru Impreza Owners Club Friday August 1, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Engine Management & Tuning > Commercial ECU 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 10-25-2007, 08:39 AM   #1
alphagoose
Scooby Newbie
 
Member#: 158302
Join Date: Sep 2007
Chapter/Region: NESIC
Vehicle:
2010 legacy gt

Default winter map

i bought an xpt stg 2 map with gm bcs map for my 04 wagon. i was wondering how hard it would be to change the map to make a winter map. lower boost is mainly what id like.
* Registered users of the site do not see these ads.
alphagoose is offline   Reply With Quote
Old 10-25-2007, 02:34 PM   #2
Broxma
Scooby Specialist
 
Member#: 158006
Join Date: Aug 2007
Chapter/Region: TXIC
Location: San Antonio
Vehicle:
2003 WRX IdleWagon
1992 GVR4 379/1000

Default

Not hard at all. Air density in cold weather might change by 10% at most I'd say so you can just drop your boost targets by 10% or so. Will probably run rich at WOT when you go open loop but you can adjust those to if needed. The ECU might be able to compensate for that a little, even if you left the fuel map alone.

/Brox
Broxma is offline   Reply With Quote
Old 10-25-2007, 04:53 PM   #3
Freon
Scooby Specialist
 
Member#: 88322
Join Date: Jun 2005
Chapter/Region: MWSOC
Location: Indianapolis, IN
Vehicle:
2009 BMW 135i

Default

Reflashes should not need to be specially winterized if the map is setup well to begin with.
Freon is offline   Reply With Quote
Old 10-25-2007, 10:08 PM   #4
alphagoose
Scooby Newbie
 
Member#: 158302
Join Date: Sep 2007
Chapter/Region: NESIC
Vehicle:
2010 legacy gt

Default

Quote:
Originally Posted by Freon View Post
Reflashes should not need to be specially winterized if the map is setup well to begin with.
yea i just dont wnat to run as much boost in the winter. figure i might be safer that way.
alphagoose is offline   Reply With Quote
Old 10-26-2007, 02:56 PM   #5
quazimoto
Scooby Guru
 
Member#: 70395
Join Date: Sep 2004
Chapter/Region: MAIC
Location: Da-boonies,Va
Default

I would rather run more boost in the winter if i have the fuel for it.
quazimoto is offline   Reply With Quote
Old 10-26-2007, 04:26 PM   #6
Freon
Scooby Specialist
 
Member#: 88322
Join Date: Jun 2005
Chapter/Region: MWSOC
Location: Indianapolis, IN
Vehicle:
2009 BMW 135i

Default

There are compensation maps for boost control to do this. That's one of the nicer points of the stock ECUs. Mainly there is a wastegate duty and timing compensations based on intake air temp.

The colder inlet air and colder air over the intercooler means you're flowing a lot more air at the same boost. Higher loads for sure. Spool improves, you need less wastegate duty, etc. Add more boost on top of that and you're *really* flowing a lot more air and definitely making more power. I guess I don't care to set up my car to do that when I'm running poorer tires in poorer conditions. YMMV.
Freon 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
FS : Dunlop Winter Sport 3d 205/55r16 SubiRS05 Wheels/Tires 8 07-06-2010 08:52 AM
Building a base map ATR skater0422 AccessPort 5 06-07-2010 11:24 PM
winter maps STYLIN North West Impreza Club Forum -- NWIC 7 11-21-2008 01:49 PM
Winter maps for utec and cheap gas serious Engine Management & Tuning 2 10-01-2004 04:17 PM
Crappy/ Winter gas maps Bolster Engine Management & Tuning 3 02-26-2003 12:30 AM


All times are GMT -4. The time now is 12:33 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.