Go Back  R/C Tech Forums > General Forums > Electric On-Road
Advantages of getting rear toe in with the hub? >

Advantages of getting rear toe in with the hub?

Advantages of getting rear toe in with the hub?

Reply

Old 06-17-2014, 11:01 AM
  #1  
Tech Fanatic
Thread Starter
 
Join Date: Aug 2008
Location: Floresville, TX
Posts: 831
Default Advantages of getting rear toe in with the hub?

I can get rear toe in with a combination of A arm and/or rear hubs. Is there an advantage one way or the other if the total amount of toe in is the same?
John Wallace2 is offline  
Reply With Quote
Old 06-17-2014, 11:15 AM
  #2  
Tech Elite
 
niznai's Avatar
 
Join Date: Feb 2009
Location: All over the place
Posts: 2,965
Default

The toe in at suspension hinge pin has the role of controlling how the suspension works as well. In principle load transfer is controlled by the inboard toe because the rolling momentum around the hingepin is not the same along a hingepin with toe whereas it is the same if the hingepin is parallel. The difference in momentum along the pin dictates that rolling won't be determined by the values at either end but by some average (depending on other factors). This happens when coasting.

Under acceleration the result is less roll than with a parallel pin, and more roll under braking.

Antisquat has a contributing role here as well.

Of course, if you don't see any point in using this adjustment you can only use the hub to get the toe you want. From a stability on direction (straight tracking) point of view it is irrelevant whether toe is set inboard or outboard as long as is the right amount.

Last edited by niznai; 06-17-2014 at 07:56 PM.
niznai is offline  
Reply With Quote
Old 06-17-2014, 11:17 AM
  #3  
Tech Master
iTrader: (6)
 
Join Date: Feb 2014
Location: Kirkland, WA
Posts: 1,072
Trader Rating: 6 (100%+)
Default

Originally Posted by niznai View Post
The toe in at suspension hinge pin has the role of controlling how the suspension works as well. In principle load transfer is controlled by the inboard toe because the rolling momentum around the hingepin is not the same along a hingepin with toe whereas it is the same if the hingepin is parallel. The difference in momentum along the pin dictates that rolling won't be determined by the values at either end but by some average (depending on other factors). This happens when coasting.

Under acceleration the result is less roll than with a parallel pin, and more roll under braking.

Antisquat has a contributing role here as well.
Holy crap, you made me look up at my browser settings. Thought somehow greek was selected as my default language. Kidding of course, great explanation.
Carnage9270 is offline  
Reply With Quote
Old 06-17-2014, 01:36 PM
  #4  
Tech Champion
iTrader: (103)
 
stiltskin's Avatar
 
Join Date: Jun 2005
Location: Virginia Beach
Posts: 5,391
Trader Rating: 103 (100%+)
Default

If you take the inboard toe out of the car and add it back in outboard, you will so have to compensate for wheelbase change.
stiltskin is offline  
Reply With Quote
Old 06-17-2014, 03:43 PM
  #5  
Tech Champion
iTrader: (67)
 
ThePanda's Avatar
 
Join Date: Jul 2013
Location: Michigan
Posts: 7,151
Trader Rating: 67 (100%+)
Default

You can change the toe in or out without changing the wheelbase of the car. What others have said is true too.


Using a combination of toe inboard and outboard can also give you a sweep forward in the suspension.
ThePanda is offline  
Reply With Quote

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


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service