Autox alignment specs?

[normanb21]

i just bought some camber crash bolts for the front end and hoping to get at least a degree of camber out of them. Also goin to get an alignment an I would like to know what the alignment specs should be for best performance. Toe? Caster? Camber?

[TRev]

After I get the Konis in this weekend and aligned on Monday my settings will be:

Max negative front camber
-.05 toe (out) front on each side

Factory rear camber (non-adjustable)
.1 toe (in) rear on each side

[normanb21]

Will the .1toe in affect the wear of the tire?

[TRev]

I had .08 toe in each side on my Genesis Coupe and a set of RE-11's. After 7,000 spirited miles of driving and 150+ autox runs, the tires were still in the 1 to 2 32nd's range and wear was very even.

[7thgear]

Originally Posted by normanb21

Will the .1toe in affect the wear of the tire?

0.1 total? no

[Tt3Sheppard]

What do you guys think of these specs. I went .06 front toe out total and .06 rear toe in total.

[TRev]

Originally Posted by Tt3Sheppard

What do you guys think of these specs. I went .06 front toe out total and .06 rear toe in total.

I basically have the same specs total (.06 out F, .08 in R) and really like it. As a daily driver, tire wear is a bit of a concern for me and with those settings really shouldn't be an issue.

[Tt3Sheppard]

Originally Posted by TRev

I basically have the same specs total (.06 out F, .08 in R) and really like it. As a daily driver, tire wear is a bit of a concern for me and with those settings really shouldn't be an issue.

Sweet!

Firestone was able to give me these specs when finished:

LF Camber:-1.4
RF Camber:-1.4
LF Toe:-0.05
RF Toe:-0.03

LR Camber:-0.9
RR Camber:-1.3
LR Toe: 0.03
RR Toe: 0.01

[kvnchu]

Edit: NVM i must have selective reading, didnt realize was for autox

R-S3 235/45

LF Camber:-3.2
RF Camber:-3.2
LF Toe:0.00
RF Toe:0.00

LR Camber:-3.2
RR Camber:-3.2
LR Toe: -0.1
RR Toe: -0.1

[Turn in Concepts]

Originally Posted by kvnchu

Edit: NVM i must have selective reading, didnt realize was for autox

R-S3 235/45

LF Camber:-3.2
RF Camber:-3.2
LF Toe:0.00
RF Toe:0.00

LR Camber:-3.2
RR Camber:-3.2
LR Toe: -0.1
RR Toe: -0.1

Interesting to see so much rear camber. I find that I like about a degree less in the rear than the front on these cars although I have not tried running more rear camber with without toe in.

Tony

[kvnchu]

Hi Tony,

Well i think the R-S3 does better with more camber. Rear, im up to perfectly up to the wear bar and the fronts i've worn into that little triangle.

I was thinking of increasing the fronts as well for this but the car is handling fine and I'll be going to Rivals for my next set so i'll probably have to dial it back down.

Best,
Kevin

[normanb21]

What about caster?

[warman]

Originally Posted by TRev

After I get the Konis in this weekend and aligned on Monday my settings will be:

Max negative front camber
-.05 toe (out) front on each side

Factory rear camber (non-adjustable)
.1 toe (in) rear on each side

What's the function of the toe in for the rear? I understand toe-out in the front should help turn-in some by building a small slip angle prior to the turn, and the rear in is supposed to keep the car stable under braking, but how does it do that?

I currently have a stock car with the SPC camber bolts, -2.2 degree camber up front and 0 toe front and rear. I'm getting Koni's and a Stranoparts bar next and I was debating if I should mess with the alignment settings.

[TRev]

Originally Posted by warman

What's the function of the toe in for the rear? I understand toe-out in the front should help turn-in some by building a small slip angle prior to the turn, and the rear in is supposed to keep the car stable under braking, but how does it do that?

I currently have a stock car with the SPC camber bolts, -2.2 degree camber up front and 0 toe front and rear. I'm getting Koni's and a Stranoparts bar next and I was debating if I should mess with the alignment settings.

Hopefully this info will help:
"With the steering wheel centered, toe-in causes the wheels to tend to roll along paths that intersect each other. Under this condition, the wheels are at odds with each other, and no turn results.

When the wheel on one side of the car encounters a disturbance, that wheel is pulled rearward about its steering axis. This action also pulls the other wheel in the same steering direction. If it's a minor disturbance, the disturbed wheel will steer only a small amount, perhaps so that it's rolling straight ahead instead of toed-in slightly. But note that with this slight steering input, the rolling paths of the wheels still don't describe a turn. The wheels have absorbed the irregularity without significantly changing the direction of the vehicle. In this way, toe-in enhances straight-line stability." -Smithees Race Car Technologies