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      12-11-2023, 11:47 PM   #1
dynamic6er
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Camber Adjustment: Lower Control Arms vs Camber Plates

Maybe I’m totally missing something, but outside of NVH what would be the justification to go with camber plates vs lower control arms? If I’m reading the limited technical info correctly, track width can be slight increased with lower control arms. Maybe I’m misunderstanding something about the geometry or some other gotcha. What do you all think?
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      12-12-2023, 11:47 AM   #2
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I prefer the lower control arm option, if available, because it becomes much easier to adjust the camber using various thickness shims and I don't have to accommodate the space for the camber plates on top of the struts. Not to mention that with the shims, adjusting camber is a DIY, although you cannot adjust for toe or caster with the them.

Also, I am not sure why you have the impression that NVH would be better/worse with one option vs. the other. I do not think they increase or decrease the NVH with either way, except if the adjustable control arms come with monoballs.
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      12-12-2023, 12:46 PM   #3
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Quote:
Originally Posted by BackOnBlack View Post

Also, I am not sure why you have the impression that NVH would be better/worse with one option vs. the other. I do not think they increase or decrease the NVH with either way, except if the adjustable control arms come with monoballs.
Appreciate the perspective!

I’m just assuming NVH increases will always be a possibility (only installing them will yeild actual results) when going from a rubber isolated bushing to a spherical bushing.

The SPL’s are the ones I’ve been looking at which use a rotating adjustment system. I’ll have to Google to see if there’s a shim style. Barring that I’m guessing I can use degrees of rotation to determine settings. I’ll just have to test for ratios and precision.
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      12-13-2023, 12:05 AM   #4
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I like to run camber plates first because I can run a bigger tire! LCA adjustments kinda pushes the tire outwards and doesn’t do much for front wheel fitment. To me LCA’s main benefit is roll center/camber gain adjustment. Or to pull back some camber when you max out the camber plate for tire clearance. Maxed out the spacers on my SPL LCA so that it sits a bit downward! I recommend watching Jackie’s video on SPL stuff since he gets a little bit into the technical stuff. Fallline have the shim style LCA but I have no experience with them.

https://youtu.be/JBvR4PLSqIc?si=WZei0u62VCDNfFRF
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      12-13-2023, 02:56 PM   #5
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Quote:
Originally Posted by dynamic6er View Post
Maybe I’m totally missing something, but outside of NVH what would be the justification to go with camber plates vs lower control arms? If I’m reading the limited technical info correctly, track width can be slight increased with lower control arms. Maybe I’m misunderstanding something about the geometry or some other gotcha. What do you all think?
How much are you going to mess with it? You will have to mark your street and track settings either way and know exactly how many turns you need to do on the tie rods to get your toe to zero out, or properly align it every time you make the change.
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      12-24-2023, 08:58 AM   #6
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Interesting info from Bimmerworld about lower control arms vs camberplates.

https://youtu.be/16fY1k71XBw?si=BQGaEOhrVbK09jwE 10:40
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      12-24-2023, 10:19 AM   #7
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Quote:
Originally Posted by dynamic6er View Post
Interesting info from Bimmerworld about lower control arms vs camberplates.

https://youtu.be/16fY1k71XBw?si=BQGaEOhrVbK09jwE 10:40
This is a very good video on not just the camber adjustment options, but explaining as plainly as possible how all components are interconnected and influence the behavior of the vehicle. Many lowering their vehicles with HAS only should take note.
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