Re: 2.8 Bar FPR and a tweaked or modified APC? A few Questions.. - Saab Performance Bulletin Board - Saabnet.com
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 | Prev by Date | Next by Date | Post Followup ] Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Re: 2.8 Bar FPR and a tweaked or modified APC? A few Questions..
Like This Post: - Subscribe to Daily Digest for this Bulletin Board
Posted by JohnK (more from JohnK) on Fri, 27 Jul 2001 15:02:26 Share Post by Email
In Reply to: 2.8 Bar FPR and a tweaked or modified APC? A few Questions.., Ian Whelan, Fri, 27 Jul 2001 12:19:55
Alert me when someone posts in this thread:
Members do not see ads below this line. - Help Keep This Site Online - Signup

Try just tweaking your APC per Kevin's instructions, basically you turn in F potentiometer 1/4 turn or so and bump in the the P pot a little bit at a time. I forget the exact details but it's been posted numerous times. You can get boost well into red. Tweak is best bang for no bucks.
Also don't forget to set your wastegate to at least 5.0 psi base boost. See if you get excessive knock sensor turbo cut with premium gas. If it's OK, then you don't really need the new fpr. I went from the 2.5 to a 2.8 to a 3.0 and did not see much performance difference except reduced gas mileage. Then I put in the RRFPR and got my mileage back. Maybe a slight performance increase, hard to tell by seat of pants.
I'm running 24lb injectors, again hard to tell without a dyno.
If you get excessive knock sensor boost cut, you can then set timing to 14 BTDC, but you give up a little off boost response. I run 15 BTDC as a compromise. Play with it...free.

Probably the next thing to do is get one of the boost retard ignition controls. MSD makes one and SPG9 has their AID device to manage the boost retard. With these, you can run lots more boost. Best one??? Lot's of posts on the pros and cons of each. Kevin, Raul, etc

Alternately, you can add a water injection system with bigger injectors. Brad is the expert on these. he thinks 30lb injectors with water and an AMM resistor is a good approach.

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!