Re: Fuel pressure/injector question. Can you help Doc? - 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 | Post Followup ] Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Re: Fuel pressure/injector question. Can you help Doc?
Like This Post: - Subscribe to Daily Digest for this Bulletin Board
Posted by ckpaden (more from ckpaden) on Sat, 9 Mar 2002 11:34:44 Share Post by Email
In Reply to: Re: Fuel pressure/injector question. Can you help Doc?, Dr Boost, Sat, 9 Mar 2002 04:18:16
Alert me when someone posts in this thread:
Members do not see ads below this line. - Help Keep This Site Online - Signup

I have a 97 900set with a Abbott ECU, ram air, K&N air filter, viggen intercooler, Water injection onto intercooler, forge bov, Saab sport exhaust and a boost controller. Ever since I have added the boost controller I have had detonation/engine knock in the some of the gears while under WOT. I can achieve 1.5+ bars with another mod to the map sensor but this is not being used until the current problem is solved. The map sensor mod helps with overboost but I like to run the car at a 1.49bar max boost. Abbott has in the past claimed that is problem is not due to their ECU upgrade and I suspect it is a fuel delivery problem due to the 34# injectors not being big enough to handle such a heavy boost load. This is why I'm currently upgrading my turbo and injectors. Upgrading the turbo will allow me to run the turbo at a lower psi and acheive the same effect due to the lower temps. Upgrading the injectors is going to allow me to run more aggressive boost pressure in all gear when I go the the track. You can not simply just add the upgraded injectors to the engine due to the the engine running to rich. You have to set a new fuel pressure to allow for the proper mixture at low rpm's. I think you know far to well what can happen to the car if I running it lean. How can I map this set up to allow for me reach my goal of 300hp without detonation/engine knock? Thanks again for any help.

posted by 172.141.166...

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!