Compression and cylinder heads - SaabCentral Forums
*
Home Saab Pictures Saab Classifieds Saab Dealer Listings Saab Forum Saab Forum


Go Back   SaabCentral Forums > Saab NG900, 1994-1998 and OG9-3, 1999-2002 & '03 Convertible (NG=new gen/OG=old gen) > NG900 & OG9-3 Performance, Mods & Tuning

Notices

NG900 & OG9-3 Performance, Mods & Tuning Covers Tuning & Performance modifications for the NG900 (1994 to 1998) & OG9-3 (1999-2002) & '03 Convertible

SaabCentral.com is the premier Saab All Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools Display Modes
  #1  
Old 3 Days Ago
MessingWithMySAAB MessingWithMySAAB is offline
Active Member
 
Join Date: Aug 2017                                                
Location: Lithuania
My Saabs: '96 NG900 SE 2.0 turbo coupé, stage II
Posts: 103
Default Compression and cylinder heads

I recently bought a Volga 24 and as it turns out the head studs are corroded so much that the head is impossible to take off.
At the same time i also found out that Opel Omega gearboxes fit B204 blocks, how convenient.
So since my Volga needs a new engine i might as well B204 swap it.
The local wreckers have a B204i (non turbo) and they sell stuff for cheap so i thought i'd pick it up but the compression is 10.1/1 and since i'm going the turbo route that would mean detonation on high boost.
So on to my question: what changes compression in these engines (different head, pistons?) and also are the internals as strong as in the turbo engines.
And another thing, this being an old engine there's bound to be wear but would it being NA mean that the engine is in better health because of the lower power (less load)?
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 3 Days Ago
jakejm79's Avatar
jakejm79 jakejm79 is offline
Saabista
 
Join Date: Sep 2010                                                
Location: Southern NH, USA
My Saabs: None at the moment
Posts: 12,718
Default

The pistons are what makes the difference for compression, crank for displacement and rods are the same.

Maintenance (or lack of) and driving habits will have the biggest impact on engine wear regardless of turbo or not.

There shouldn't be a difference in strength for rods and crank (since they are used interchangeably between turbo and non turbo) but I don't thing the B204i has oil squirters that cool the pistons so you may want those if you convert to turbo.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by jakejm79; 3 Days Ago at 10:28 PM.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

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:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in


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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Zero compression in cylinder #1 + Horrible knock wahhabm NG900 & OG9-3 Workshop 51 15th July 2014 02:15 PM
Low compression on cylinder 3. Help! Shiningstar240 9-5 Workshop 9 30th August 2012 12:33 PM
No Compression in #2 cylinder fixinmy95 9-5 Workshop 6 23rd September 2010 11:32 AM
Clutch replacement... here we go again Matthew C900 Workshop 69 7th September 2010 11:06 AM
Cylinder heads doing my head in :-( Keith C900 Workshop 10 2nd April 2003 05:13 PM


All times are GMT -4. The time now is 03:15 AM.



Powered by vBulletin® Copyright ©2000 - 2019, 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 © 2019 DragonByte Technologies Ltd.
 

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.