Timing / tuning Tubo 8 - SaabCentral Forums
Home Saab Pictures Saab Classifieds Saab Dealer Listings Saab Forum Saab Forum

Go Back   SaabCentral Forums > Saab C900, 1979-1993 & '94 Convertible (C=classic) > C900 Performance, Mods & Tuning

C900 Performance, Mods & Tuning Covers Tuning & Performance modifications for the Classic 900 (C900)

SaabCentral.com is the premier Saab All Forum on the internet. Registered Users do not see the above ads.
Thread Tools Display Modes
Old 30th April 2002
84uk900t8 84uk900t8 is offline
Junior Member
Join Date: Apr 2002                                                
Location: Devon, UK
Posts: 7

My APC system recently failed, so I had a bleed valve fitted as a cheap replacement. However I have stacks of power low down (up to 4000rpm) but it drops off above this (boost pressure only slightly drops), so to get performance I am constantly changing gear! I am told that adjusting the timing will shift the powerband up, but I am unsure whether to advance or retard, and by how much, or whether this will have any other effects. Or any other suggestions...
Reply With Quote Quick reply to this message
Sponsored Links
Old 30th April 2002
john-w's Avatar
john-w john-w is offline
Saab Lunatic
Join Date: Aug 2001                                                
Location: Bulphan, Essex.
My Saabs: 1989 T8 Special
Posts: 3,467

I have advanced my timing to 24deg instead of the stock 20, but i have water injection to overcome the increased tempertures you will get by timing advance!
The other thing with an 8v is the turbo is 40mm trim, where the 16v has 45, so you lose some power there, so you could change to a bigger garrett or go for a mitsubishi which will spool up from a lower rpm and give you improved acceleration, but you lose a little at the top end!!
Another tip for the 8v get some BP7EVX plugs their 6 each but you will notice the difference in starting and performance!!
Reply With Quote Quick reply to this message
Sponsored Links


Quick Reply

Register Now

In order to be able to post messages on the SaabCentral Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -4. The time now is 08:09 PM.

Powered by vBulletin® Copyright ©2000 - 2017, vBulletin Solutions, Inc.

top of page | sitemap | email us

copyright © 2003 - 2011 saabcentral.com, All rights reserved http://www.whiter.co.uk - valid xhtml - valid css
SaabCentral is an independently run website and is not affiliated in any way to Saab Automobile AB.

vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.