Welcome to the North American Subaru Impreza Owners Club Friday January 17, 2020
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
Go Back   NASIOC > NASIOC General > Proven Power Bragging

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. 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 10-12-2019, 01:44 PM   #25
Scooby Newbie
Member#: 326585
Join Date: Jul 2012
Chapter/Region: South East
Location: Florida
2007 STi


Originally Posted by '05CrystalGray View Post
2005 STi, stock motor, Full Race EFR 7163 kit.

Does anyone have issues with the car going to wastegate boost when shifting really fast? If I shift normal/fast the car hits target boost each shift. But when I race or do flatfoot shifting, the car will hit target, shift happens and then sits at wastegate boost until I feather the throttle.

Could this be because I need the stiffer BOV spring?

As a side note, will a stiffer spring require a retune? Anybody switched between the two? I've heard it helps with spool and response.

I switched to the stiffer BOV spring at the suggestion of Full Race. There was no noticeable difference beside the reduction of the whistle/surge noise in vaccume (10inHg). That spring change will not require a retune, but a wastegate spring change will require a retune.
1qukSti07 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

All times are GMT -4. The time now is 01:32 PM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2020 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.