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GT350 Front Toe on Track Alignment - In or Out?

ScottyD_GT

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The GT350 supplement recommends positive 0.1 total front toe (i.e. toe in) for track alignment of 350R. The usual recommendation for this type of car is a slight negative front toe (i.e. toe out) to help with initial turn-in.

Why does Ford recommend positive front toe? Is this intentional to help with mid-corner understeer instead of turn-in advantage?

Would like to hear thoughts, especially if anyone has on track experience with both positive and negative front toe. @BillyJRacing shot in the dark you might see this haha.
 

JAJ

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The GT350 supplement recommends positive 0.1 total front toe (i.e. toe in) for track alignment of 350R. The usual recommendation for this type of car is a slight negative front toe (i.e. toe out) to help with initial turn-in.

Why does Ford recommend positive front toe? Is this intentional to help with mid-corner understeer instead of turn-in advantage?

Would like to hear thoughts, especially if anyone has on track experience with both positive and negative front toe. @BillyJRacing shot in the dark you might see this haha.
The 2019 GT350/R Owner's Supplement says 0.1 degree toe in. The 2020 GT350/R Owner's Supplement says 0.1 degree toe out. The car didn't change over the period, so it sounds like you're free to take your pick.
 

Grant 302

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The car didn't change over the period, so it sounds like you're free to take your pick.
I’m not 100% sure, but I don’t think that’s right. Didn’t the ‘20 get a revised knuckle that changes bumpsteer properties? My assumption would be toward less bump out, and explains why the spec for track could be changed that much.
 

JAJ

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I’m not 100% sure, but I don’t think that’s right. Didn’t the ‘20 get a revised knuckle that changes bumpsteer properties? My assumption would be toward less bump out, and explains why the spec for track could be changed that much.
The 2020 'R got the new knuckle but the 2020 GT350 still uses the same knuckle as the 2015 - 2019 cars.

2019 recommendations:

1590685217668.png


2020 recommendations:

1590685366720.png

Regardless of which knuckle is installed on a 2020, the toe setting is the same.
 

ScottyD_GT

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The 2020 'R got the new knuckle but the 2020 GT350 still uses the same knuckle as the 2015 - 2019 cars.

2019 recommendations:

View attachment 16176

2020 recommendations:

View attachment 16177
Regardless of which knuckle is installed on a 2020, the toe setting is the same.
Interesting. Now that I see the 2020 specs, I just think they misprinted 2019. Should have been negative.
 

Grant 302

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Interesting. Now that I see the 2020 specs, I just think they misprinted 2019. Should have been negative.
That is interesting. Especially the street settings. -0.10° isn’t a lot in itself, but surprising that Ford would change to toe out for the street recommendation and use the same hardware as earlier non-R 350s
 

JAJ

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Interesting. Now that I see the 2020 specs, I just think they misprinted 2019. Should have been negative.
There's some merit in that comment - from 2016 to 2018, this was the recommendation:

1590688741557.png

The GT350 was toe out, the R was toe in. So, maybe 2019 was an error, but then again, maybe not. I run 0.0 in any case.
 

Grant 302

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That gets even stranger. The fact that all of these are still close to zero helps it make sense. Most of the time, the recommendations would come with +/- tolerances greater than that.

Tire selections changed a bit since, but that alone wouldn’t explain all the variation.
 

Tonymustang302

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That gets even stranger. The fact that all of these are still close to zero helps it make sense. Most of the time, the recommendations would come with +/- tolerances greater than that.

Tire selections changed a bit since, but that alone wouldn’t explain all the variation.
i bet it is tire choice.
 

ScottyD_GT

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Thanks for all the input everyone, I think this just validates that it doesn’t matter too much as long as you’re close to 0. Might as well play around with it.

Ford doesn’t spec nearly enough camber either, so you have to take these recommendations with a grain of salt I suppose.

thanks again
 

VUDU V8 Steve

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Experts run more camber front and rear on our cars- Shameless non-reimbursed plug: I am convinced I got my money's worth going to Cortex to set up my cars suspension details- I am sure toe settings are much less important considered in isolation, than one's total set-up...
 

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