Re: SD chips, fuel cut?? - Saab Performance Bulletin Board - Saabnet.com
The banner above is an advertisment - if it asks you to download software, please ignore.
Site News -
[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: SD chips, fuel cut??
Like This Post: - Subscribe to Daily Digest for this Bulletin Board
Posted by SWEDISH DYNAMICS [Email] (more from SWEDISH DYNAMICS) on Fri, 7 Sep 2007 12:06:57 Share Post by Email
In Reply to: SD chips, fuel cut??, Aero91, Sat, 1 Sep 2007 17:36:33
Alert me when someone posts in this thread:
Members do not see ads below this line. - Help Keep This Site Online - Signup

JP,
Hope all is well with you and your 1991 9000T!
The EPROM should allow for an elimination of overboost protection but is still very responsive to engine knock/detonation. If encountering detonation, the DI/APC control unit will immediately reduce charging pressures which safely brings engine conditions away from detonation.
Detonation can be caused by a number of factors such as lean fuel delivery, fuel octane ratings, advanced ignition timing, higher intake or charging pressure temperatures, etc.
Since a reduction in outside temperatures allow for higher charging/boost targets, this might indicate that the DI/APC may limiting charge pressures under warmer conditions due to it's detection of detonation.
The 9000 should be able to see a lower detonation threshold by additional fueling, use of a more efficient turbocharger or intercooler, octane boost, or lowering under hood temperature by means of exhaust manifold wrap, etc. You might consider the purchase of an octane boost (avail. at most auto parts chains) and using during your next fuel fill. If your charge pressures stay more consistant, your symptoms were most likely due to detonation.
We look forward to hearing from you and please feel free to check back at the SNW with any updates or Email from our website.
Best Regards!,
GaryK at SWEDISH DYNAMICS,INC.

http://swedishdynamics.saabnet.com

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!