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Old 06-17-2014, 11:01 AM   #1
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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?
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Old 06-17-2014, 11:15 AM   #2
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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.
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Last edited by niznai; 06-17-2014 at 07:56 PM.
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Old 06-17-2014, 11:17 AM   #3
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Quote:
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.
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Old 06-17-2014, 01:36 PM   #4
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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.
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Old 06-17-2014, 03:43 PM   #5
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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.
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