Welcome to the North American Subaru Impreza Owners Club Monday September 15, 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 > 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 03-04-2008, 04:30 AM   #1
benw
Scooby Specialist
 
Member#: 103320
Join Date: Dec 2005
Location: Oklahoma City
Vehicle:
2005 wingless
aspen white

Default wastegate corrections... how does the math work?

I've always been terrible at math, can someone help me out?

if the current wastegate duty is 50%, and the IAT compensation cell being used is say, -10%, will the current applied wgdc be 40% or will it be 45%?

Basically, is it a percentage of a percentage, or a subtraction of one percentage from another?

Hope this makes sense. I couldn't make heads or tails from the Enginuity oops ROMRAIDER definition.

Thanks,
BW
* Registered users of the site do not see these ads.
benw is offline   Reply With Quote
Old 03-04-2008, 05:58 AM   #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

This post about the GMBCS and WGDC's has about the best explanation your going to get.

http://forums.nasioc.com/forums/show....php?t=1445774

/Brox
Broxma is offline   Reply With Quote
Old 03-04-2008, 08:12 AM   #3
Tea cups
Scooby Specialist
 
Member#: 103136
Join Date: Dec 2005
Default

Quote:
Originally Posted by benw View Post
I've always been terrible at math, can someone help me out?

if the current wastegate duty is 50%, and the IAT compensation cell being used is say, -10%, will the current applied wgdc be 40% or will it be 45%?

Basically, is it a percentage of a percentage, or a subtraction of one percentage from another?

Hope this makes sense. I couldn't make heads or tails from the Enginuity oops ROMRAIDER definition.

Thanks,
BW
It is a relative percentage, so it would be 45%. This is clearly spelled out in RomRaider with the label "Wastegate Duty Compensation (% relative)" -> make sure you are always using the latest ECU defs.
Tea cups is offline   Reply With Quote
Old 03-07-2008, 03:43 PM   #4
benw
Scooby Specialist
 
Member#: 103320
Join Date: Dec 2005
Location: Oklahoma City
Vehicle:
2005 wingless
aspen white

Default

Quote:
Originally Posted by Tea cups View Post
It is a relative percentage, so it would be 45%. This is clearly spelled out in RomRaider with the label "Wastegate Duty Compensation (% relative)" -> make sure you are always using the latest ECU defs.
I'm am and have always used the latest definitions. But do you not see where I am coming from? The description along with the fact that two percentages are being used together, is a bit confusing. Common sense told me that 50% WGDC less 10% would equal 40%. Same units, subtracted. I'm glad I asked though, thanks for the clarification.
benw is offline   Reply With Quote
Old 03-07-2008, 04:00 PM   #5
Tea cups
Scooby Specialist
 
Member#: 103136
Join Date: Dec 2005
Default

Quote:
Originally Posted by benw View Post
I'm am and have always used the latest definitions. But do you not see where I am coming from? The description along with the fact that two percentages are being used together, is a bit confusing. Common sense told me that 50% WGDC less 10% would equal 40%. Same units, subtracted. I'm glad I asked though, thanks for the clarification.
the label would indicate "% absolute" if that were the case (as is with the turbo dynamics corrections).
Tea cups is offline   Reply With Quote
Old 03-08-2008, 02:05 AM   #6
benw
Scooby Specialist
 
Member#: 103320
Join Date: Dec 2005
Location: Oklahoma City
Vehicle:
2005 wingless
aspen white

Default

Quote:
Originally Posted by Tea cups View Post
the label would indicate "% absolute" if that were the case (as is with the turbo dynamics corrections).
I see what you mean now, after you explained it. Part of learning Enginuity/RomRaider is learning how to speak to language.
benw 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
how does the ranking work here? elmst Newbies & FAQs 3 10-15-2007 01:16 AM
OT--how does the wheel work? Physics Junkie Off-Topic 7 12-14-2005 01:01 AM
How does the antilag work on the Hydra? Crazykev Other Engine Management 2 10-15-2005 07:11 PM
How does the AWD work with one front wheel off and one rear wheel off? crash Transmission (AT/MT) & Driveline 6 02-06-2003 06:34 PM
OT: How does the VDC work? Bahumut Technical Forum Archive 7 07-31-2000 06:21 PM


All times are GMT -4. The time now is 07:15 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.