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]
[Main 9000 Bulletin Board | BBFAQ |
Prev by Date | Next by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Re: Just checked mine and it is steel stamped "XC" I would
Posted by aero guy (more from aero guy) on Sat, 14 Jul 2001 14:06:24
In Reply to: The one that use to be in the car and now is in my hand has part, Daren, Fri, 13 Jul 2001 23:25:28
Members do not see ads below this line. - Help Keep This Site Online - Signup
imagine these different holes are for different wastegate rates if any thing. The smaller hole intuitively would give a smoother transition for the wastgate opening, but that strictly a SWAG. I would probably be inclined to use the smaller hole to conserve pressure on the C/R line.
The only thing I can find is a note in the tech data stating that the solenoid regulator is gaged (I presume that this means the hole size) to allow the waste gate to respond within 1/12 second when the solenoid is being pulsed at 12 Hz by the controller (Impending Knock). This occures when the turbo reaches a base boost of 0.4 bar after receiving a signal from the ECU. Apparently the Knock detector is the controlling signal to the ECU at this point, rather than the pressure sensor. The default is 70 Hz at 2500 or less and 90 Hz at above 2500 revs. The Knock sensor sends a variable AC signal to the controller to modify the pulse rate of the solenoid. THJis description is under the Ignition/DI/APC Turbo control system. But it sure takes a lot of reading to sort it out.
Now to your boost Have you performed an adaption recently. If you have had your battery disconectd for any length of time the controller reverts and it takes a lot of driving to get it back to full boost unless you "force" it by adaption. What is your base boost setting?
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.
StateOfNine.com
![](/tsn/xyz/stateofninebutton.gif) |
SaabClub.com
![](/tsn/xyz/scnabutton.gif) |
Jak Stoll Performance
![](/tsn/xyz/jakstollbutton.gif) |
M Car Covers
![](/tsn/xyz/mcarcoversbutton.gif) |
Ad Available
![](/tsn/xyz/buttonavailable.gif) |
![](/tsn/images/tsnmap.gif)
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!