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 Performance Bulletin Board | BBFAQ |
Prev by Date | Next by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Re: MBC?or not MBC??APC?Knock?
Posted by SteveW (more from SteveW) on Mon, 17 Jun 2002 00:46:26
In Reply to: MBC?or not MBC??APC?Knock?, paulmanchester, Sun, 16 Jun 2002 19:18:00
Members do not see ads below this line. - Help Keep This Site Online - Signup
If you put the MBC in the "C" line between the Turbo and the APC valve you will eliminate wastegate creep and feathering, get quicker spool up, full boost in lower gears, and you can maintain APC function and knock detection, mostly. The key is to set the valve to open at a boost pressure considerably less than your maximum boost. It takes a bit of trial and error to set it so that you still see boost cutback at high levels. I assumed that because the valves(I used a Dawes Device) at max setting opened at 15psi I could just start a turn or two down and go from there, no way. While seeing the boost gauge at 3 o'clock and feeling the tremendous power with no boost limits was awesome (momentarily only, of course), reason prevailed and I back it down to about half way.
Basically I have not raised the max boost level at all this way, its just there a whole lot quicker. Throttle response, a Saab weakness, is greatly improved.
If you do this you have to still be carefull to use good gas, and I wouldn't reccomend it if other family members, who might not be as sensitive as your are about the car were to drive it.
ps, what turbo does the Carlson have, a Mitsu or a T-25?
posted by 66.118.193...
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!