Have any of you found or seen different ways of adjusting the front camber on RCF/GSF/ IS500? Looking to add more negative camber for track and corners to minimize excess wear on the outside tire edge when pushing the car. The only way I've really seen is to replace the upper control arm and most of those look a bit sketchy. The RR Racing looks like a nice design, especially with the latest version not requiring unbolting the top to make adjustments. The only thing is I'd rather not go to a spherical bearing solid mount on the upper control arms to body connection. This is mainly to prevent excess NVH, but also longevity with the spherical bearing being exposed. Anyone have experience with the RR Racing upper controls and thoughts on the change in ride on the street?

Any other options out there besides upper control arms? or at least a nice design maintaining bushings at the body connection?

I saw where at least some prior gen Lexus cars used adjustable ball joints in the stock upper control arm. Not sure about those being an option on these cars or how well they hold camber setting.

 

I'm running Figs upper arms on my IS F. They're easy to adjust relatively speaking and completely solid. He also offers an option for polyurethane bushings if NVH is a big deal for you. I have about 30k miles on them and they're very minimal maintenance. I'm honestly surprised the ***** have remained tight. I've only sprayed them with a Teflon spray about every oil change. They transform the steering on the car when in combination with the lower control arm bushings. Again, mine are all solid, but there are polyurethane options as well. For me, steering is Porsche-like and this comes from Porsche owners who have driven my car before and after.

https://shopfigs.com/v5/SUSPENSION-C...TROL-ARM-L1060

 

Good info, thank you.

Mainly looking to get to around -1.8 degrees negative camber for the front tires. Balance street with track tire wear. These car stock front camber shreds the outside edge of the tire when pushing it and not even pushing it that hard, just fun spirited track and street driving.

Gaining negative front camber without adding excess NVH is my goal. The Figs version with inner poly bushings is interesting. The spherical end is no big deal since stock is a solid connection with ball joint anyway. The way the upper connection to the knuckle juts out at an angle from the upper A-arm looks a little questionable, but great feedback you've had good experience and have 30k miles on them. From your name photo, looks like your ISF sees some track time too

 

I did not noticed any change in nvh from the rr racing upper control arm. Been running for 3 yrs now. I wish I had their newer version for easier camber adjustment. The nvh significantly increase when I added the rr road and track lch bushings and adding the pretension per rr procedures. I had to back off on the pretension.

 

Great to hear you haven't experienced any change in NVH with the RR Racing front upper control arm. I messaged them and they confirmed no bushing version available. I plan to change out the LCA bushing as well, so may go with something a bit softer there like the the Figs 80 durometer.

 

Update - I took the plunge and bought RR Racing R2 UCA for RCF/GSF. Have them installed and quite happy with them. I haven't noticed any change to NVH (yet at least) and have driven on a mix of smooth, bumpy, and broken pavement. I did add some heim joint boots to protect the spherical surfaces from debris, muck, and water.