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Mixed use alignment? (Attn:Hotrodz, Rusty)

The more rear camber you have the less tire meaningfully contacting the road for straight line acceleration. As soon as you get in the car, your weight adds more rear

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Old 12-23-2023, 11:08 AM   #1 (permalink)
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The more rear camber you have the less tire meaningfully contacting the road for straight line acceleration.

As soon as you get in the car, your weight adds more rear camber, then plant your foot to the floor and the rearward weight distribution adds even more. Pretty soon you only have have the first 4" of the inside of the tire really biting the pavement. *Facetiously speaking about the 4" measurement but you get the idea.
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Old 12-23-2023, 12:13 PM   #2 (permalink)
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Originally Posted by Tractionless View Post
The more rear camber you have the less tire meaningfully contacting the road for straight line acceleration.

As soon as you get in the car, your weight adds more rear camber, then plant your foot to the floor and the rearward weight distribution adds even more. Pretty soon you only have have the first 4" of the inside of the tire really biting the pavement. *Facetiously speaking about the 4" measurement but you get the idea.
Yeah, the Z has a steep camber curve designed into the rear suspension. The more it squats, the more camber it gets.
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Old 12-24-2023, 10:53 AM   #3 (permalink)
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Yeah, the Z has a steep camber curve designed into the rear suspension. The more it squats, the more camber it gets.
I agree and unfortunately hurts straight line traction as a result so I run -1* on my dedicated street car to save the inside edge and keep as much width on the road as possible. IMO still handles great for my usage.

While mine is by no means a track car, nor even a auto X ride I take it to a road race shop to make sure it's "treated with respect", done "right" with me present, and I pay dearly lol.

I noticed the major amount of rear camber change when the tech. pulls down on the rear cross bracing while making adjustments!
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Old 12-26-2023, 12:23 PM   #4 (permalink)
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I agree and unfortunately hurts straight line traction as a result so I run -1* on my dedicated street car to save the inside edge and keep as much width on the road as possible. IMO still handles great for my usage.

While mine is by no means a track car, nor even a auto X ride I take it to a road race shop to make sure it's "treated with respect", done "right" with me present, and I pay dearly lol.

I noticed the major amount of rear camber change when the tech. pulls down on the rear cross bracing while making adjustments!

https://youtu.be/20rltqTKeVE?si=5dMuIp0LF9Jx-q2A

Recorded this a while back to visualize the camber gain


Sent from my iPhone using Tapatalk
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Old 12-26-2023, 07:39 PM   #5 (permalink)
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Yeah, the Z has a steep camber curve designed into the rear suspension. The more it squats, the more camber it gets.
Unless you modify it and change the pickup points on the rear subframe. It works very well too.
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Old 12-26-2023, 09:04 PM   #6 (permalink)
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Unless you modify it and change the pickup points on the rear subframe. It works very well too.
How many here are willing to do that?
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Old 12-26-2023, 09:08 PM   #7 (permalink)
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How many here are willing to do that?
Well, it may break some rules for classes some folks are in. All good though.
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Old 12-26-2023, 02:07 PM   #8 (permalink)
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Originally Posted by Tractionless View Post
The more rear camber you have the less tire meaningfully contacting the road for straight line acceleration.

As soon as you get in the car, your weight adds more rear camber, then plant your foot to the floor and the rearward weight distribution adds even more. Pretty soon you only have have the first 4" of the inside of the tire really biting the pavement. *Facetiously speaking about the 4" measurement but you get the idea.
Good points but also have to take into consideration you’re jumping spring rates quiet a bit and also when bringing camber back into spec you’re shortening the lower arm (in the case of the rear) so now the upper and lower arms are closer in length to each other so you’re also changing the curve. Same happens for the front but instead you’re lengthening the upper arm. So all these things combined is typically why you run higher static angles (at least in other platforms) as there’s less geometry changes (especially when adding stiffer sways) so now the tires and tire roll have a great effect.
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