Suspension & Brakes Theory, alignment, spring rates....

what exactly is toe?

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Old Jan 21, 2005 | 04:26 AM
  #1  
mountaindewguy's Avatar
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Default what exactly is toe?

can anyone tell me?
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Old Jan 21, 2005 | 04:35 AM
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Default Re: what exactly is toe? (mountaindewguy)



Just kidding...

Toe is:

The distance between the front and rear of the tires is called toe. Most cars use a small amount of toe-in (the front of the tires are closer together than the rear).

Toe-in is used to compensate for the cumulative effect of all the tolerances in the steering system. Without a bit of toe-in when the car moves forward, any slack in the various steering would let the front of the tires spread apart, resulting in toe-out. Toe-out will cause most cars to wander when going down the road.

A good indicator of proper toe setting is tire wear. While it's not very scientific, run your hand across the tire's tread from the outside in, then the inside out, and feel for sharp edges. If a sharp edge is felt from outside in, it's an indication that more toe-in is required. If a sharp edge is felt going from inside out, more toe-out is needed. Of course, if the treads feel about the same from both directions, the toe is just right.

One last thing you should be aware of when setting toe is it can be changed by adjusting caster and/or camber, but adjusting toe will not the other way around. For that reason, toe should be set last.

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Old Jan 21, 2005 | 04:42 AM
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.RJ
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Default Re: what exactly is toe? (ki3t)

Google ownz j00

http://www.familycar.com/alignment.htm
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Old Jan 21, 2005 | 07:06 AM
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Default Re: what exactly is toe? (ki3t)

lol, I like pictures too.

this is looking at a car from the top down. toe is basically having your wheels/tires pointed in or out

zero toe =

|-----|


|-----|


front toe in =

/------\


|------|

front toe out =

\-----/


|-----|


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Old Jan 21, 2005 | 09:53 AM
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mountaindewguy's Avatar
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Default Re: what exactly is toe? (mike-y)

alright thanks guys. so in all, setting the toe actually would work when lowering the car instead of a camber kit (in most cases anyways)
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Old Jan 21, 2005 | 10:36 AM
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Default Re: what exactly is toe? (mountaindewguy)

when you lower a car w/ wisbone suspension layout (honda) you gain static camber. When you do this, you also gain some toe out.... quite a bit of it. So correct the toe (not correct the camber, which also corrects the toe at the co$t of adj upper arms) and you're fine
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Old Oct 24, 2006 | 11:04 AM
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Default Re: what exactly is toe? (.RJ)

when you lower your car, your supposed to have toe set back to 0, right? and not in a bit, like ki3t said^?

why is that?

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Old Oct 24, 2006 | 01:42 PM
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Targa250R's Avatar
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Default Re: what exactly is toe? (hondaPINK)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondaPINK &raquo;</TD></TR><TR><TD CLASS="quote">when you lower your car, your supposed to have toe set back to 0, right? and not in a bit, like ki3t said^?

why is that?</TD></TR></TABLE>
To minimize tire wear, you want the toe at 0.00 (degrees, inches, whatever - zero is zero). Any non-zero static toe will accelerate tire wear.

However, some people run non-zero static toe angles to adjust the handling of the car, at the expense of tire wear.
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Old Oct 24, 2006 | 02:54 PM
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Default Re: what exactly is toe? (ki3t)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ki3t &raquo;</TD></TR><TR><TD CLASS="quote"> Toe-in is used to compensate for the cumulative effect of all the tolerances in the steering system. Without a bit of toe-in when the car moves forward, any slack in the various steering would let the front of the tires spread apart, resulting in toe-out. Toe-out will cause most cars to wander when going down the road.

.</TD></TR></TABLE>

thats what i meant. i thought he was saying toe-in was a good thing
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Old Oct 24, 2006 | 03:12 PM
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Default Re: what exactly is toe? (hondaPINK)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondaPINK &raquo;</TD></TR><TR><TD CLASS="quote">thats what i meant. i thought he was saying toe-in was a good thing</TD></TR></TABLE>
A very very slight amount of static toe-in is fine, and will improve straight-line stability (at the expense of turn-in sharpness) without accelerating tire wear too much. However, a large amount of toe-in or toe-out is never a good thing for a street-driven car.
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