Carb Spacers - 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
  #1 (permalink)  
Old 07-24-2007, 12:54 PM
400smb_s10's Avatar
Back Yard Junky :)
 
Last photo:
Join Date: Mar 2007
Location: Around the Corner from the middle of nowhere... Arden Ontario
Age: 28
Posts: 368
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Carb Spacers

I was told that carb spacers make bottem end torque is this true? And if so would it be worth spend money on one and bolting it on?


Thanks

Ed
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 07-24-2007, 12:58 PM
richard stewart 3rd's Avatar
Registered User
 

Last journal entry: 351W rebuild
Last photo:
Join Date: Jan 2006
Location: tremont, pa.
Age: 69
Posts: 2,174
Wiki Edits: 0

Thanks: 5
Thanked 6 Times in 6 Posts
Hi Ed,
Yes & Yes
rich
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 07-24-2007, 01:29 PM
techinspector1's Avatar
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 12,279
Wiki Edits: 326

Thanks: 616
Thanked 783 Times in 666 Posts
If you're using a dual-plane (180 degree) manifold, then a 4-hole spacer may help the fuel/air mixture make the turn into the manifold runners a little better, rather than smashing into the floor of the manifold as it exits the carb bores and creating turbulence. You may see this improvement on the dyno, but I doubt that you'll feel it in the seat of your pants. You will however, add volume to the manifold with a 4-hole spacer, or any spacer for that matter. Generally speaking, the more volume in the manifold, the more power the motor will make up higher and the less it will make down low.

With a 180 manifold and an open spacer, you will effectively change your manifold from a 180 to a 360 degree design and kill off bottom end torque because now, each and every cylinder "sees" the entire manifold volume rather than just half of it like with a segregated 4-hole spacer, so low-rpm cylinder filling will suffer along with low-rpm torque. It's a trade-off. You'll make more power on the high end (assuming you have enough cam to make power up high), less on the low end.

My best advice: Leave it alone and save your money for something more important, like a set of gears or converter.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 07-24-2007, 01:31 PM
BIGSKY's Avatar
See project in Photo Album
 
Last photo:
Join Date: Sep 2005
Location: Montana
Posts: 202
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I installed a Moroso "plastic" 4 hole spacer on my SBC because I was getting heat sink into my Edelbrock. I don't know if it makes more torque because I changed exhaust at the same time, but it did solve the heat sink problem.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 07-24-2007, 02:06 PM
techinspector1's Avatar
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 12,279
Wiki Edits: 326

Thanks: 616
Thanked 783 Times in 666 Posts
Quote:
Originally Posted by BIGSKY
I installed a Moroso "plastic" 4 hole spacer on my SBC because I was getting heat sink into my Edelbrock. I don't know if it makes more torque because I changed exhaust at the same time, but it did solve the heat sink problem.
Good point BIGSKY. The most efficient spacer I've seen to prevent heat transferred to the carb is one made from wood and sealed with "bar finish" epoxy.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 07-24-2007, 02:27 PM
400smb_s10's Avatar
Back Yard Junky :)
 
Last photo:
Join Date: Mar 2007
Location: Around the Corner from the middle of nowhere... Arden Ontario
Age: 28
Posts: 368
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
thank for the replys I was wondering if it works and if it was worth it but apparently not

thanks
Ed
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 07-24-2007, 03:27 PM
BIGSKY's Avatar
See project in Photo Album
 
Last photo:
Join Date: Sep 2005
Location: Montana
Posts: 202
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by techinspector1
Good point BIGSKY. The most efficient spacer I've seen to prevent heat transferred to the carb is one made from wood and sealed with "bar finish" epoxy.
WOOD?! Near fuel and spark? That scares me!
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 07-24-2007, 04:01 PM
techinspector1's Avatar
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 12,279
Wiki Edits: 326

Thanks: 616
Thanked 783 Times in 666 Posts
Naaahhh, works well.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 07-24-2007, 07:35 PM
1BAD80's Avatar
The Smell of Nitro in the morn
 
Last wiki edit: How to adjust valves Last photo:
Join Date: Jun 2001
Location: Mich
Posts: 2,423
Wiki Edits: 2

Thanks: 0
Thanked 2 Times in 2 Posts
Taken for the Knowledge Base,
http://www.hotrodders.com/kb/browselinks.php?c=172

Tuning with carb spacers,
http://www.nhra.com/dragster/1999/is...echnology.html
__________________
Luv the smell of NITRO in the morning.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 07-24-2007, 08:31 PM
DeathRattle's Avatar
Some Punk Kid
 
Last photo:
Join Date: Oct 2006
Location: Michigan
Age: 27
Posts: 787
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
Quote:
Originally Posted by BIGSKY
WOOD?! Near fuel and spark? That scares me!
They are okay. Got one with about 7k miles on it no problems.
Best thing about em is they cost less than the billet aluminum, and probably do more for slowing/stopping heat transfer as already mentioned.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 07-24-2007, 08:31 PM
75sprintguy's Avatar
Member
 

Last journal entry: a good used 350 we installed
Last photo:
Join Date: Oct 2003
Location: north alabama
Age: 38
Posts: 117
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
a 4 hole phenolic spacer worked well for my set up my holley was bogging off the line so i put on the 1 inch spacer i felt instant throttle response i didnt have before and no more bog id say dont knock it till you try it
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 07-24-2007, 08:55 PM
Registered User
 
Last wiki edit: How to title a hot rod Last photo:
Join Date: Feb 2007
Location: West Virginia
Age: 24
Posts: 3,389
Wiki Edits: 8

Thanks: 14
Thanked 1 Time in 1 Post
car craft has a write up on them in the september 07 book had some real good results one added like 20 some hp
Shane
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 07-25-2007, 05:44 AM
302 Z28's Avatar  
Last photo:
Join Date: May 2003
Location: North Texas
Posts: 10,812
Wiki Edits: 0

Thanks: 1
Thanked 82 Times in 69 Posts
They work, in addition to isolating them from engine heat they also help speed up the air/fuel mixture a little.

Vince
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 07-25-2007, 06:02 AM
Steve karch's Avatar
Member
 
Last photo:
Join Date: Feb 2002
Location: Regina, Saskatchewan
Age: 54
Posts: 414
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
My 406 made 10 hp and 10 lbft more with a Super Sucker tapered style 4 hole on a Vic Jr intake on the dyno. Defintely works and I'd recommend it.
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 07-25-2007, 07:30 AM
400smb_s10's Avatar
Back Yard Junky :)
 
Last photo:
Join Date: Mar 2007
Location: Around the Corner from the middle of nowhere... Arden Ontario
Age: 28
Posts: 368
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Well I would have to say 10 hp is 10 hp and it will bring me closer to the allmighty 200 hp from a stock 350 lol

Thanks again for all the replys and information on the spacers its much appreciated

Thanks

Ed
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
Too much carb? KNanthrup Engine 5 09-03-2005 06:47 PM
25 Year-old Carb, rebuild or trash? Arcuden Engine 6 07-31-2005 08:42 PM
Holley carb has me at wit's end cool rockin daddy Engine 23 06-02-2005 02:38 PM
What Came first Chicken or the Egg, or Carb Adj vs Timing riesman20 Engine 19 07-18-2004 10:26 PM
Four hole carb spacers stinky jinx Engine 5 05-29-2004 10:21 AM


All times are GMT -6. The time now is 11:58 AM.


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.