The banner above is an advertisment - if it asks you to download software, please ignore.
Site News - 7/1: Members: Log In to See Fewer Ads! | 5/28: SAAB Evolutions/TSN T-Shirts $14
[General | Members | C900 | 9000 | NG900 & OG93 | 93 | 95 | NG95 | 99 | Sonett | Vintage Models | Clubs | Other Cars | FAQs | Gifts | Member Photo Galleries | Member Directory | Classifieds | Manuals | *Buddy Registry | *Mileage Registry | Polls | What's New | Raffle | Photo of the Month | Sponsors]

Performance Bulletin Board
[Subscribe to Daily Digest]
(Search Author's Posts: e.g. Keyword:username)*Members Only

[Main Performance Bulletin Board | BBFAQ | Next by Date | Post Followup ] Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Different Car but questions first...
Like This Post: - Subscribe to Daily Digest for this Bulletin Board
Posted by Jeff in ATL (more from Jeff in ATL) on Thu, 2 Oct 2003 12:23:35 Share Post by Email
In Reply to: Re: Slightly different issue but..., TurboDave, Thu, 2 Oct 2003 10:38:27
Alert me when someone posts in this thread:
Members do not see ads below this line. - Help Keep This Site Online - Signup

Help me first understand why you want to override the apc settings in the first place. Is it because you are finding that boost is greater or better spoolup by overriding the the APC? Have you ever adjusted the pods in the APC? Currently running a MBC?

The setup is on a 9-3SE, but am familiar with the apc setup from my previous '89 spg. I unfortunately am not familiar with the mods you have done unless the pressure relief valve you put between the solinoid and the WG is a needle valve equivilant to ball-spring MBC. If it is restricting flow to the wastegate keeping the wastegate from cracking too early then that would be where this setup could possibly go.

Better for me to explain current setup on my car and you can figure out where to put it on yours:

Low pressure side of turbo compressor to a vacuum Y splitter hosebarb
One side of Y fits a short vacuum hose to the MBC
other side of Y fits short hose to a Air Pressure Regulator(APR)
Short hose from other side of MBC and Short hose from other side of APR to second Y vacuum hose barb connected to hose to WG.
Setting the APR to allow air at a few psi to "prime" the wastegate line. I don't know the current setting but imagine that it is around 4-5 psi. With the WG line pre-pressurized, once the MBC gets to its' breaking point and cracks open the WG and react quicker and crack off it's seat. I have found that the use of the apr has virtually eliminated overshoots and fuel cuts.
Boost is consistent in high and low temps so far.

posted by 208.235.174...
Posts in this Thread:
Alert me when someone posts in this thread:
Members do not see ads below this line. - Help Keep This Site Online - Signup
Post a Followup

No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.

Name: Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
E-Mail: (Optional)
Re-Enter E-Mail: (Confidential & Secure - Not revealed to other users!)
Note: Please check your spam folder for BB responses.

Subject:

Posting rules are simple - No for sale/wanted ads may be posted here - use the site classifieds.
You may not cross-post your message to multiple BBs.
Not permitted: political/religious topics and being disrespectful (personal attacks, insults, etc...).
 Site Members do not see any red text, inline ad links, bottom of page anchor ads, box ads, or anti-spam check.

Message: (please no for sale/wanted classifieds - post those in the Saabnet.com Classifieds)
Links are now automatically made active, no need for any special code (or use the Option Link field below) - don't put links in () or end with a '.'
To add inline images to your post, use [img]http://www.domain.com/img.jpg[endimg] (or use the Optional Image Link field below).

Links are now automatically made active, no need for any special code (or use the Option Link field below) - don't put links in () or end with a '.'
To add inline images to your post above, use [img]http://www.domain.com/img.jpg[endimg] (or use the Optional Image Link field below).
Optional Link: (e.g. http://www.saabnet.com/)
Link Title: (Optional)
Optional Photo/Image Link: (e.g. http://www.saabnet.com/img.jpg)
Photo/Image to Upload: (Please be patient while file uploads)



StateOfNine.com
SaabClub.com
Jak Stoll Performance
M Car Covers
Ad Available

The content on this site may not be republished without permission. Copyright © 1988-2024 - The Saab Network - saabnet.com.
For usage guidelines, see the Mission & Privacy Notice.
[Contact | Site Map | Saabnet.com on Facebook | Saabnet.com on Twitter | Shop Amazon via TSN | Site Donations]

Random Saabnet.com Member Gallery Photos (Click Image)
This is a moderated bulletin board - Posting is a privilege, not a right. Unsolicited commercial postings are not allowed (no spam). Please, no For Sale or Wanted postings, SERIOUSLY. Classifieds are to be listed in The Saab Network Classifieds pages. This is a problem solving forum for over 250,000 Saab owners, so expect to see problems discussed here even though our cars are generally very reliable. This is not an anything goes type of forum. Saabnet.com has been a moderated forum since 1988. For usage guidelines, see the Saabnet.com Mission and Purpose Page. Please remember that you are not anonymous. Site Contact | Site Donations | Other Sites by SP - Poverty2Prosperity.org | Run Club Menlo Park | ScreenBot


Site Members do not see red text instructions, bottom of the page anchor ads, or box ads.
Click here to see all the Site Membership Benefits!