Saab Turbos on SBC - Page 2 - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #16 (permalink)  
Old 10-18-2009, 12:35 PM
NXS's Avatar
NXS NXS is offline
wind & fire = guides to power
 
Last photo:
Join Date: Nov 2004
Location: Oklahoma
Posts: 1,534
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
yes, there is the middle "island" which is where the turbo is most efficient at.
The way I plotted it out it looks like those turbo's will be almost perfect for a stock 302 or 305 turning approx 5000 rpm.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #17 (permalink)  
Old 10-18-2009, 12:38 PM
zildjian4life218's Avatar
Listen and Learn
 
Last wiki edit: DIY junkyard electrical fan controller
Last journal entry: SBC 305 Twin Turbo
Last photo:
Join Date: Dec 2008
Location: WNY/Rochester, New York
Age: 25
Posts: 1,647
Wiki Edits: 7

Thanks: 44
Thanked 9 Times in 9 Posts
so i think i am gonna run stock bottom end with 12.5cc dished pistons arp rod bolts a small comp turbo cam for torque, maybe some 416 heads ported with bigger valves and a tpi intake.

Last edited by zildjian4life218; 10-18-2009 at 01:00 PM.
Reply With Quote Quick reply to this message
  #18 (permalink)  
Old 10-18-2009, 12:49 PM
NXS's Avatar
NXS NXS is offline
wind & fire = guides to power
 
Last photo:
Join Date: Nov 2004
Location: Oklahoma
Posts: 1,534
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
arp bolts are for RPM, not power.....
Reply With Quote Quick reply to this message
  #19 (permalink)  
Old 10-18-2009, 12:58 PM
zildjian4life218's Avatar
Listen and Learn
 
Last wiki edit: DIY junkyard electrical fan controller
Last journal entry: SBC 305 Twin Turbo
Last photo:
Join Date: Dec 2008
Location: WNY/Rochester, New York
Age: 25
Posts: 1,647
Wiki Edits: 7

Thanks: 44
Thanked 9 Times in 9 Posts
How does the component selection look?
Reply With Quote Quick reply to this message
  #20 (permalink)  
Old 10-18-2009, 01:15 PM
NXS's Avatar
NXS NXS is offline
wind & fire = guides to power
 
Last photo:
Join Date: Nov 2004
Location: Oklahoma
Posts: 1,534
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
good. I heard of a guy using a similar setup pushing 20+ lbs and making 700 hp.. could have been a lie but if you go to turbomustangs.com you will probably find it, I think it was called "when will it grenade" or the like.
Reply With Quote Quick reply to this message
  #21 (permalink)  
Old 10-18-2009, 09:11 PM
zildjian4life218's Avatar
Listen and Learn
 
Last wiki edit: DIY junkyard electrical fan controller
Last journal entry: SBC 305 Twin Turbo
Last photo:
Join Date: Dec 2008
Location: WNY/Rochester, New York
Age: 25
Posts: 1,647
Wiki Edits: 7

Thanks: 44
Thanked 9 Times in 9 Posts
wow thats a lot of power and boost. I am only looking at 300-400.
Reply With Quote Quick reply to this message
  #22 (permalink)  
Old 10-18-2009, 09:37 PM
zildjian4life218's Avatar
Listen and Learn
 
Last wiki edit: DIY junkyard electrical fan controller
Last journal entry: SBC 305 Twin Turbo
Last photo:
Join Date: Dec 2008
Location: WNY/Rochester, New York
Age: 25
Posts: 1,647
Wiki Edits: 7

Thanks: 44
Thanked 9 Times in 9 Posts
would this be a better turbo: http://cgi.ebay.com/ebaymotors/ford-...Q5fAccessories
Reply With Quote Quick reply to this message
  #23 (permalink)  
Old 11-04-2009, 05:14 PM
zildjian4life218's Avatar
Listen and Learn
 
Last wiki edit: DIY junkyard electrical fan controller
Last journal entry: SBC 305 Twin Turbo
Last photo:
Join Date: Dec 2008
Location: WNY/Rochester, New York
Age: 25
Posts: 1,647
Wiki Edits: 7

Thanks: 44
Thanked 9 Times in 9 Posts
i got an hx-35 turbo off a cummins from my friend that needs to be rebuilt. How much does it cost to have these rebuilt?
Reply With Quote Quick reply to this message
  #24 (permalink)  
Old 05-06-2010, 09:09 PM
Registered User
 

Last journal entry: it can roll now
Last photo:
Join Date: May 2008
Location: Anchorage AK
Age: 29
Posts: 88
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Very funny that i came across this because because work was slow today and i did just this today at work and was looking for some input on this. I have read what has been posted before but i will give you the shake down of what i have. Let me start of by saying i by far know very little about the way things run (im a body man) but we have endless amounts of parts and engines at my work and i was tinkering around. I got the turbo off of a 2.0 older Saab and put it on a stock 305, its not a daily diver or anything that will raced or care to hold up but was just interested. i hooked everything up and make an intake and what not and i had to much boost and fuel started coming out of my accerator pump(i could be wrong thats just what i was told. I was wondering if there was anything we could do it fix that or what would need to be done. We did end up running it another way put it releases some pressure and it works great and did give notice able power but is not at its full potential, any advice? Like i said this is just messing around and not ment to be a race car or looking for 400 hp but just to learn something new and better understand things.
Reply With Quote Quick reply to this message
  #25 (permalink)  
Old 05-07-2010, 06:52 AM
zildjian4life218's Avatar
Listen and Learn
 
Last wiki edit: DIY junkyard electrical fan controller
Last journal entry: SBC 305 Twin Turbo
Last photo:
Join Date: Dec 2008
Location: WNY/Rochester, New York
Age: 25
Posts: 1,647
Wiki Edits: 7

Thanks: 44
Thanked 9 Times in 9 Posts
Quote:
Originally Posted by jnanam
i hooked everything up and make an intake and what not and i had to much boost and fuel started coming out of my accerator pump(i could be wrong thats just what i was told. I was wondering if there was anything we could do it fix that or what would need to be done.
Carb will need to be converted to blow through. Or go fuel injection. How much boost was it making? How did the turbos spool and at what rpm?
Reply With Quote Quick reply to this message
  #26 (permalink)  
Old 05-07-2010, 06:57 AM
How fast is fast enough?
 
Last photo:
Join Date: Jun 2005
Location: St. Louis, MO
Age: 29
Posts: 9,079
Wiki Edits: 0

Thanks: 17
Thanked 332 Times in 312 Posts
those turbos will be just about right. I'd take them apart and rebuild them, clean up the housings while you're at it. Run a large intercooler. You'll make REALLY good mid RPM torque, great for a daily driver.
Reply With Quote Quick reply to this message
  #27 (permalink)  
Old 05-07-2010, 07:00 AM
zildjian4life218's Avatar
Listen and Learn
 
Last wiki edit: DIY junkyard electrical fan controller
Last journal entry: SBC 305 Twin Turbo
Last photo:
Join Date: Dec 2008
Location: WNY/Rochester, New York
Age: 25
Posts: 1,647
Wiki Edits: 7

Thanks: 44
Thanked 9 Times in 9 Posts
Quote:
Originally Posted by ap72
those turbos will be just about right. I'd take them apart and rebuild them, clean up the housings while you're at it. Run a large intercooler. You'll make REALLY good mid RPM torque, great for a daily driver.
AP do you think they could work on a 350? I was planning on doing something with a 305 just to use up some of them i have laying around but bigger is better
Reply With Quote Quick reply to this message
  #28 (permalink)  
Old 05-07-2010, 07:08 AM
How fast is fast enough?
 
Last photo:
Join Date: Jun 2005
Location: St. Louis, MO
Age: 29
Posts: 9,079
Wiki Edits: 0

Thanks: 17
Thanked 332 Times in 312 Posts
Quote:
Originally Posted by zildjian4life218
AP do you think they could work on a 350? I was planning on doing something with a 305 just to use up some of them i have laying around but bigger is better
At 10psi intercooled they can reliably flow enough to make about 425hp, so if you want a 425hp 350 then yes. You won't have to spin it over 4500RPM to get there if you do it right. That equates to about 500ftlb of torque... That's where "undersizing" a turbo can help you. high torque values low in the RPM range do nothing for racing, but for street driving it makes a big difference. I would definitely clean up the exhaust housings though and intercool it. Undersized turbos tend to heat up more.
Reply With Quote Quick reply to this message
  #29 (permalink)  
Old 05-07-2010, 07:26 AM
zildjian4life218's Avatar
Listen and Learn
 
Last wiki edit: DIY junkyard electrical fan controller
Last journal entry: SBC 305 Twin Turbo
Last photo:
Join Date: Dec 2008
Location: WNY/Rochester, New York
Age: 25
Posts: 1,647
Wiki Edits: 7

Thanks: 44
Thanked 9 Times in 9 Posts
the thing that worried me about them being too small was the turbine housings are t25.
Reply With Quote Quick reply to this message
  #30 (permalink)  
Old 05-07-2010, 07:47 AM
How fast is fast enough?
 
Last photo:
Join Date: Jun 2005
Location: St. Louis, MO
Age: 29
Posts: 9,079
Wiki Edits: 0

Thanks: 17
Thanked 332 Times in 312 Posts
Quote:
Originally Posted by zildjian4life218
the thing that worried me about them being too small was the turbine housings are t25.

I assume you mean the compressor?

The compressor is too small to make more than 425 in a 10psi intercooled setup as I outlined. If you want less than 425 then they are fine. Cleaning up the housings, the waste gate, intercooling, and getting a properly matched cam will make a difference. Keep in mind though you will be done making power by 5,000 RPM, after that you'll be heating things up too much and looking to break something.

Not a bad idea for a daily driver though as it will have spool from idle on up, full boost really early.



There was an article about a Pontiac 455 with a single turbo that was way undersized a little while ago- made about 750 ftlb at 3,000 RPM. Only made about 550hp, but the torque was huge. Great for a daily driver, bad for a race car.
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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

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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Long Awaited 400 SBC Dyno Results Mad Maggot Engine 19 10-14-2011 07:29 PM
Just another Saab story... freebie though ViperMonster800 Transmission - Rearend 2 05-01-2006 11:35 AM
sbc 350/400 heads help Jwhite Engine 6 09-04-2005 05:56 PM
oil drain on SBC heads TerroRx7 Engine 7 03-17-2005 02:12 AM
Late model 350 SBC Question Smoker113 Engine 3 02-19-2005 10:12 PM


All times are GMT -6. The time now is 01:12 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.