Keith Craft Inc.- We service what we sell!!! Check out our Cobra engines!!! We build high performance racing engines and components for the fast pace strip racing industry as well as daily drivers who want to be FIRST!!!

FE Forums sponsored by Keith Craft Inc.


Go Back   Club Cobra > Engine Building, Tuning, and Induction > FE TALK

Welcome to Club Cobra!  The World's largest non biased Shelby Cobra related site!

  •  » Representation from nearly all Cobra/Daytona/GT40 manufacturers
  •  » Help from all over the world for your questions
  •  » Build logs for you and all members
  •  » Blogs
  •  » Image Gallery
  •  » Many thousands of members and nearly 1 million posts! 

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

Keith Craft Racing
Nevada Classics
Keith Craft Racing
Main Menu
Nevada Classics
Nevada Classics
Keith Craft Racing
Advertise at CC
Banner Ad Rates
MMG Superformance
MMG Superformance
MMG Superformance
MMG Superformance
November 2025
S M T W T F S
            1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30            
  #1 (permalink)  
Old 03-12-2012, 03:16 PM
CC Member
Visit my Photo Gallery

 
Join Date: Jul 2008
Location: Driftwood, TX
Cobra Make, Engine: Contemporary Cobra, 427 side oiler
Posts: 1,850
Not Ranked     
Default

Turn an H-beam 90 degrees cross section and you have an I-beam.

To say "it makes no difference at all" is as much conjecture as picking one over the other without empirical evidence. But then again, seems like folks here like arguing about things they can't prove.
Reply With Quote
  #2 (permalink)  
Old 03-13-2012, 12:57 AM
Dominik's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jun 2000
Location: Cape Town, South Africa/Mainz, Germany,
Posts: 1,601
Not Ranked     
Default

The notch effect from the oil is highly reduced using aftermarket H-Beam vs stock I-Beam.
__________________
If I don't respond anymore, that's because I can't log in
Reply With Quote
  #3 (permalink)  
Old 03-13-2012, 04:16 AM
CC Member
Visit my Photo Gallery

 
Join Date: Jul 2003
Location: West Bloomfield, MI
Cobra Make, Engine:
Posts: 717
Not Ranked     
Default

Quote:
Originally Posted by Dominik View Post
The notch effect from the oil is highly reduced using aftermarket H-Beam vs stock I-Beam.
What is a notch effect?
__________________
Survival Motorsports

"I can do that....."



Engine Masters Challenge Entries
91 octane - single 4bbl - mufflers
2008 - 429 cid FE HR - 675HP
2007 - 429 cid FE MR - 659HP
2006 - 434 cid FE MR - 678HP
2005 - 505 cid FE MR - 752HP
Reply With Quote
  #4 (permalink)  
Old 03-13-2012, 02:21 PM
CC Member
Visit my Photo Gallery

 
Join Date: Mar 2001
Location: E BRUNSWICK N.J. USA,
Posts: 3,841
Not Ranked     
Default It's about weight and flex of a connecting rod

Guys the differents between rods is that and I beam is stronger and far less flex. The H rod has more flex but is lighter. depending on rpm range is which rod you go with. Less weight, easier and faster for rpm spin up. I run "H" rods and have had no problems with them. I do limit my motors to 6,500 rpms. If I was looking for more rpms, I would go to an "I" rod. It's all about the application. rod big end size too. Honda 1.88 rods are a trick to run but know of guys doing this with a light piston. Rick L.
Reply With Quote
  #5 (permalink)  
Old 03-15-2012, 05:29 AM
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2001
Location: Louisville, KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
Send a message via AIM to blykins
Not Ranked     
Default

Quote:
Originally Posted by RICK LAKE View Post
The H rod has more flex but is lighter.
Not always the case.....

A lot of H-beam rods are much heavier than their I-beam sibling...up to 50-60g difference.
__________________
Lykins Motorsports, LLC
Custom SBF/Cleveland/FE/385 Series Engines
Street, Road Race, Drag Race, Pulling Truck
www.lykinsmotorsports.com
www.customfordcams.com
brent@lykinsmotorsports.com
Reply With Quote
Reply


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not 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 -7. The time now is 07:26 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: CC Policy