Need to shorten rack & pinion 12". - Page 4 - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



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

Reply
 
LinkBack Thread Tools
  #46 (permalink)  
Old 09-08-2018, 07:54 AM
Registered User
 
Last wiki edit: General Motors transmissions
Join Date: Mar 2006
Location: near Yellowstone park
Posts: 5,469
Wiki Edits: 27

Thanks: 57
Thanked 642 Times in 540 Posts
suspension design.

There is a lot more than Bump steer, You probably not be road racing the rat but here is some more good info from fat man
https://www.bing.com/videos/search?q...4CEF7&FORM=VIR
A good friend is Bruce Cambern, The retired head of Ford Racing, He was 2 times Nat't champion with his March open wheel car and still races his much modified 427 Cobra. He spent a lot of sunday afternoons on Ford's suspension computers when replacing the suspension on the Cobra

    Advertisement

Last edited by timothale; 09-08-2018 at 08:23 AM.
Reply With Quote Quick reply to this message
The Following User Says Thank You to timothale For This Useful Post:
de_greaser (09-09-2018)
Sponsored Links
Advertisement
 
  #47 (permalink)  
Old 09-09-2018, 01:09 AM
de_greaser's Avatar
Registered User
 
Join Date: Jun 2012
Location: Winston-Salem NC
Posts: 22
Wiki Edits: 0

Thanks: 16
Thanked 1 Time in 1 Post
Good Stuff

Timothale, Thanks for the link to the Utube video. I watched it 2 times and will probably watch it again. I believe I will be OK with my DIY “cradle rack & pinion” because I haven’t changed any pivot points, steering arms, control arms or tie rod locations. If the Rat develops some bump steer then it had bump steer from the factory. Where’s that Thank You button? Here’s the latest pic.
Attached Thumbnails
Click image for larger version

Name:	8CCAC6DA-C300-48AF-A965-E95FEE1F62B0.jpg
Views:	56
Size:	66.0 KB
ID:	434931  
Reply With Quote Quick reply to this message
  #48 (permalink)  
Old 09-09-2018, 04:23 AM
Registered User
 
Join Date: Jun 2015
Location: Norfolk UK
Posts: 141
Wiki Edits: 0

Thanks: 13
Thanked 34 Times in 28 Posts
Did you lose any turning radius with changing to a rack. E.g. now you cannot make such tight turns.
Reply With Quote Quick reply to this message
 
  #49 (permalink)  
Old 09-09-2018, 05:19 AM
fiftyv8's Avatar
Registered User
 
Join Date: Dec 2006
Location: https://youtu.be/uYIUzCopjpA
Posts: 306
Wiki Edits: 0

Thanks: 73
Thanked 132 Times in 90 Posts
Just wondering how you went about determining the rack position?
Any handy hints...
Reply With Quote Quick reply to this message
  #50 (permalink)  
Old 09-09-2018, 07:36 AM
Registered User
 
Last wiki edit: General Motors transmissions
Join Date: Mar 2006
Location: near Yellowstone park
Posts: 5,469
Wiki Edits: 27

Thanks: 57
Thanked 642 Times in 540 Posts
Safe is fast

another good educational series is Safe is fast.

google safe is fast youtube

When Bruce set the road race track record with his cobra at MIS all 4 wheels were pointing directions, set each wheel where it had the most effect on a part of the track and not reduce the total for the lap time.

I got a real education driving a 63 Falcon sprint that had a Cobra kit engine parts installed, the front end would lift and I had to crank the steering wheel 1/4 turn to keep it going straight, I was accelerating on a city street (dumb things kids do) when someone backed out of their driveway in front of me. Lucky, When I stepped on the brakes and the front end setteled the car went the right direction and turned away from the car in the road. AND when I was driving my Buick nailhead powered Willys set up with a drag race rear suspension and got into a hard turn and the rear suspension was doing the steering.

Last edited by timothale; 09-09-2018 at 07:42 AM.
Reply With Quote Quick reply to this message
  #51 (permalink)  
Old 09-09-2018, 07:48 AM
Registered User
 
Last wiki edit: General Motors transmissions
Join Date: Mar 2006
Location: near Yellowstone park
Posts: 5,469
Wiki Edits: 27

Thanks: 57
Thanked 642 Times in 540 Posts
Rack position

Start with the car at factory ride height. If you lower the car the pivot arc is in a different part of the curve and you can move the rack to compensate, When 5.0 Mustangs are lowered you can buy tie rod at steering arm connection spacers . That doesn't move the rack but changes the arc'.
The WIKI article I references on earlier post # 9 had some discussion about rack placement.

Last edited by timothale; 09-09-2018 at 07:58 AM.
Reply With Quote Quick reply to this message
  #52 (permalink)  
Old 09-09-2018, 08:53 AM
Registered User
 
Last wiki edit: General Motors transmissions
Join Date: Mar 2006
Location: near Yellowstone park
Posts: 5,469
Wiki Edits: 27

Thanks: 57
Thanked 642 Times in 540 Posts
hria video's

If you google
hria education day
then click on video's
there is a lot of good info from SEMA companies that make after marked parts
Reply With Quote Quick reply to this message
  #53 (permalink)  
Old 09-09-2018, 02:14 PM
Registered User
 
Join Date: Dec 2013
Location: VT
Posts: 685
Wiki Edits: 0

Thanks: 1
Thanked 129 Times in 99 Posts
Good advice on getting the A frame and inner tie rod pivots all lined up to avoid bump steer. For future reference any rack and pinion shortening is all done on the end opposite from the pinion. Attached is a picture showing the limit of how far you can narrow a MII Rack and Pinion.
Attached Thumbnails
Click image for larger version

Name:	Narrow Must II 3.jpg
Views:	99
Size:	62.3 KB
ID:	434949  

Last edited by '48 Austin; 09-09-2018 at 02:17 PM. Reason: add picture
Reply With Quote Quick reply to this message

Tags
r&p, rack & pinion, rack and pinion

Recent Suspension - Brakes - Steering 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:
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:
Insurance
Please select your insurance company (Optional)

Log-in



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
F1 rack and pinion harley1953 Suspension - Brakes - Steering 2 08-08-2013 04:04 PM
Mustang II rack and pinion, pinion Jim H Suspension - Brakes - Steering 3 02-23-2012 11:58 AM
S-10 with rack and pinion fierosum Suspension - Brakes - Steering 3 07-03-2008 07:32 AM
rack and pinion Gassed 64 falcon Suspension - Brakes - Steering 2 09-08-2004 03:47 PM
Rack and Pinion bigvofnash Suspension - Brakes - Steering 3 08-11-2003 11:13 AM


All times are GMT -6. The time now is 11:51 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.