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  •  » How much toe?

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    9/24/2020 9:55 PM  #1

    Cab4word67
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    From: Portland, Ore
    Registered: 4/06/2019
    Posts: 1,154

    How much toe?

    Hi guys, I have a 65 coupe, small block, c4 non possi, Bourgison PS conversion and almost (5K of wear) new 225x60 TAs with 26 lb of air in all 4. i did the shelby drop and have it alined as per Daze specs. right around +3.5 & -.5  My question is when driving down the hwy it seams to trac good but I am always having to correct it just a bit to keep it in my lane.  Is this norm or is it the toe. I am set at 1/8" and wonder if more is better but dont want to add if the car doesnt need it. 

    Slammed Big Blue, ran over the varmints that messed with the Stang. Now all is good in the NW
     

    9/25/2020 7:01 AM  #2

    Rudi
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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
    Posts: 3,976

    Re: How much toe?

    1/8” seems to be the right toe in. Could it be that the tires are “hunting” the wheel path of the road?
    Does it wander on runway flat roads?

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

    9/25/2020 9:18 AM  #3

    rpm
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    From: Bakersfield, Ca
    Registered: 9/17/2013
    Posts: 3,662

    Re: How much toe?

    Ya, I can't see how 1/8" toe in is the issue, I usually have no more than 1/8" toe out. Bad roads are the only time my car moves around.

    Bob. 69 Mach 1, 393W, SMOD Toploader, Armstrong  steering, factory AC.
     

    9/25/2020 10:42 AM  #4

    Bentworker
    I FYI 24-7

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    Registered: 9/17/2017
    Posts: 472

    Re: How much toe?

    How are you measuring toe?

    Also- 1/8” toe in it toe out?

     

    9/25/2020 4:17 PM  #5

    6sally6
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    From: Surfside Beach,SC
    Registered: 4/02/2013
    Posts: 6,855

    Re: How much toe?

    Max caster helps keep'm skraight.... 1/8 toe is good.
    (although....10 toe(s) are good too!
    6s6

    Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
     

    9/25/2020 10:43 PM  #6

    Cab4word67
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    From: Portland, Ore
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    Re: How much toe?

    I made a couple 34​" straight edge's that have a spacer to set on the rim. I secure them around the spokes and then do my toe reading from the front and the rear with a stanley tape. 1/4" more in the rear should be 1/8" toe correct?.

    Last edited by Cab4word67 (9/25/2020 10:49 PM)

    Slammed Big Blue, ran over the varmints that messed with the Stang. Now all is good in the NW
       •Thread Starter
     

    9/26/2020 7:26 AM  #7

    TKOPerformance
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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,502

    Re: How much toe?

    I've found through experimentation that anything over 1/8" toe tend to make the front tires scrub in tight turns and you get some squeal.

    As for your tracking issue, I really like to set up with 0.25 to 0.50 more positive caster on the RH side of the car.  This accounts for the issue you may be having which is just that the car is following the crown in the road.  Interstates being wider than other roads have less crown, so its not as noticeable in terms of tracking.  Smaller roads have a more pronounced crown to shed water.
     

     

    9/26/2020 10:05 AM  #8

    BobE
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    From: White Plains, NY
    Registered: 4/04/2013
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    Re: How much toe?

    Cab4word67 ... "I made a couple 34​" straight edge's that have a spacer to set on the rim. I secure them around the spokes and then do my toe reading from the front and the rear with a stanley tape. 1/4" more in the rear should be 1/8" toe correct?. "

    Not sure I'm reading this correctly, but 1/4" out measured at the rear should equate to 1/4" in at the front, and would 1/4" toe-in.  

    65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
     

    9/26/2020 10:24 AM  #9

    Cab4word67
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    From: Portland, Ore
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    Re: How much toe?

    Thank you Bob and TK, I will check that out as I was guessing on my numbers. TK I understand the crown in the road but this is on the interstate, could be from the trucks as we use asphalt out here. I think I will just do another alinement check and see if my numbers are in fact where they should be now that I have the lift that is level as opposed to my floor that I had to make the car level on. 

    Slammed Big Blue, ran over the varmints that messed with the Stang. Now all is good in the NW
       •Thread Starter
     

    9/26/2020 1:12 PM  #10

    TKOPerformance
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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,502

    Re: How much toe?

    Toe numbers are another of those things where there's different terminology that can be confusing.  When I talk about toe in or out its total, so if you wonder per side it's 1/2 what I'm saying.  So to me, 1/8" toe in would be a 1/8" difference in the front measurement to the back measurement (1/8" more at the rear for toe in), which could also be seen as 1/16" per side.

    That is also starting with the centerlink centered in the car, which I do by making sure that my tie rod assemblies are the exact same measurement side to side.  Don't omit that step, as I've seen vehicles where the tie rods were 1/2" different in length side to side because a previous "alignment guy" didn't know what he was doing.  You might get your toe numbers right like that, but you'll notice the steering is different side to side.  One side will feel twitchy on initial turn in, the other sluggish. 

     

    9/26/2020 3:51 PM  #11

    Bentworker
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    Registered: 9/17/2017
    Posts: 472

    Re: How much toe?

    Sounds like you have 1/4” toe in - a little much in my opinion.   

    This might sound a little overkill but you may want to support the front of the car and give the wheels a spin to check for runout.  That way you can make sure your method isn’t having error introduced to it by a wheel.

     

    9/27/2020 5:22 AM  #12

    TKOPerformance
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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,502

    Re: How much toe?

    I would also make sure all suspension components and the tires are in good shape.  Play or tire wear will create erroneous results.

    Having run 1/4" toe in to gauge the effects I can say that for the street its going to cause noise in tight turns.  It will also make the steering feel slower on initial turn in. 

     

     

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