B234/b205 hybrid - The Saab Link Forums

Go Back   The Saab Link Forums > Saab NG900 '94-'98 and 9-3 '99-'02 Forum > Performance Modifications for the NG900 / Old 9-3

Performance Modifications for the NG900 / Old 9-3 This forum contains PERFORMANCE related Q&A's for the NG900 and 9-3. This may also include suspension.

SaabLink.net is the premier Saab Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old 04-30-2018, 12:47 PM   #1
SAABeginner
 
Join Date: Apr 2018
Posts: 2
B234/b205 hybrid

I have a 2000 93 and I am looking to use it as a project/sleeper car and was looking into making using a b234 block and my current b205 head. This is all pretty new to me and I was wondering if there is a thread/ tutorial on doing this. If someone could point me in the right direction I would greatly appreciate it.!
Slam Norman is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 05-01-2018, 02:06 AM   #2
Elder
 
jssaab's Avatar
 
Join Date: Aug 2006
Posts: 2,919
Not sure I have ever seen that done, mixing the worst of 2 worlds I woudl think.

234 >205 head.
234 <235 bottom end

234 head, 234 bottom best combo
jssaab is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 05-01-2018, 06:01 AM   #3
Elder
 
Join Date: Sep 2004
Location: Annapolis, MD
Posts: 2,522
Send a message via ICQ to g96nt Send a message via AIM to g96nt Send a message via MSN to g96nt Send a message via Yahoo to g96nt
The money you'll spend finding/refreshing a b234 could be spent on 1-over forged pistons and basic rebuild/refresh.

The 205 is lighter, and just as strong once you swap out the pistons.
__________________
Craig R.
2008 9-5 Aero-1995 900T 'vert
g96nt is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
 
Old 05-02-2018, 07:57 AM   #4
SAABeginner
 
Join Date: Apr 2018
Posts: 2
After a little more research that's also what I was wondering, just beef up the internals and I should be fine? Now with that being said my current engine has almost 270k on it. Should I be looking for a new b205? Would it make sense just to put in a newer b235 with forged internals?
Slam Norman is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 05-02-2018, 09:46 AM   #5
Elder
 
Join Date: Sep 2004
Location: Annapolis, MD
Posts: 2,522
Send a message via ICQ to g96nt Send a message via AIM to g96nt Send a message via MSN to g96nt Send a message via Yahoo to g96nt
It depends. you should plan on new bearings and seals no matter what you do.
The b2x5 are low friction engines, so I'd guess that as long as oil changes were done, your stock block is in good shape. You could maybe get away with stock bore forged pistons and a quick hone, but nobody would recommend that.

If you're handy, strip the block down and bring it to a machine shop and have them prepare it for the pistons. shouldn't be but a couple few hundred bucks if it's just labor

Same with the head- have them do a rebuild, and you're good. maybe ~$350-ish?
If you're on a budget, a bake/plane is usually ~$100.

You're not going to know if the 205 is re-usable until you get it apart. You may find out it's perfect inside, so you can get away with just bearings on top of the simple machining, and main seals.

You may find a scored/blue crank, and be screwed, and looking for a new block.
If you end up needing a new engine- you get to make the choice. there are benefits of going either way.
__________________
Craig R.
2008 9-5 Aero-1995 900T 'vert
g96nt is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 07-22-2018, 06:20 PM   #6
TSLMember
 
Elyk's Avatar
 
Join Date: Sep 2016
Posts: 68
Quote:
Originally Posted by Slam Norman View Post
After a little more research that's also what I was wondering, just beef up the internals and I should be fine? Now with that being said my current engine has almost 270k on it. Should I be looking for a new b205? Would it make sense just to put in a newer b235 with forged internals?
I pulled a b234 from the yards. Took it home, stripped it down and took it to my machine guy for reworking.

$340 later I had a Balance Shaft deleted stock bore, Decked, Line honed, hot Tanked b234. This also included a refresh of the stock pistons, hot Tanked and a balanced and polished crank.

The b234 Block has been seen to make over 600hp on Stock internals. In fact the problem at that point for those who have gone that route is in the front wheel set up.

The head doesn’t really matter if you do a heavy port and valves/ Springs. What I have found is that they are all generally the same mold with slightly different hardware.

Throw some single springs in with a good port and Cams and you will get the breathing you need to make big power...
Elyk is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 07-23-2018, 04:38 AM   #7
Live, eat, and sleep by TSL
 
Join Date: Aug 2010
Location: Glen Mills, PA (Phila)
Posts: 1,542
I don't think you'll see a lot of consensus that 234 can handle 600hp on stock pistons. Or, handle it for more than a week or two. You're right about the front wheels and the rest of the drivetrain. 600 just isn't a reasonable amount of HP for this chassis in general.
BuHuSPG is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 07-23-2018, 05:23 AM   #8
Elder
 
Join Date: Nov 2005
Location: MI
Posts: 10,066
Send a message via AIM to Jameson
I think 400whp is the limit for a 9-5 in terms of power that is still mostly streetable. Over that and its all about finding 1st and 2nd useless and bragging about 70mph wheelspin.

I've got an Quaife LSD and 255 Michelin P4S'. Thats about as far as one can go to combat wheelspin on a street car.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Jameson is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the The Saab Link 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:
Vehicle Info.
Enter your vehicle information (year, model, mods)
Insurance
Please select your insurance company (Optional)

Log-in


Thread Tools

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
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 06:03 PM.


Powered by vBulletin® Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Friendly URLs by vBSEO 3.5.2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
All content is copyright The Saab Link and it's original authors.


 

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.