jdc916

Anyone add adjustable rear camber control arms on their IS250 ?

Just replaced tires and had an alignment done... Service tech said that although the car is within spec, in order to get better (longer) tire wear, these would help and be beneficial.

2013FSport

iTrader: (2)

Not to side step your question but what camber values did you end up with?
Through toe and tire pressure you can safely run to 50,xxx mi with up to 1.5° of negative camber. The trick is actually adjusting these to items based on how you use the car.

Most over inflate and blow the centers from the rear.
Those who under inflate - well coupled with your negative camber; bye bye inner edge!

Just because toe and camber are in spec doesn't really mean jack. Watch/measure wear, record pressure and use that info to dial in your settings and minimize wear! If you pay attention you can adjust before the tires are ruined.

Just saying. And no, doubt you'll get 80,000 mi from rear tires on this chassis if that is your goal.

Aspect

I've personally added the FIGS toe links to help me dial in the toe but not camber. Since I'm lowered I've got like -1.5 to -2 degrees of negative camber which I'm fine with for the performance aspect of it. It definitely wouldn't hurt getting fully adjustable suspension parts but how are your bushings looking?

jdc916

The bushings look fine to me.

is299alex

SPC and FIGS are both popular options here on the forums. SPC makes a stout and affordable rear camber arm for our cars while FIGS manufactures an extremely high quality adjustable LCA as well as a kit for your #1 and #2 arms, and many quality bushing options. The owner of FIGS engineering is active on these forums and I'm sure he would be more than happy to answer any and all questions you may have.

DickH

I have picked up and installed a pair of megan control arms off of ebay. They seemed fine quality wise and the install was easy. Heads up, I was not able to get the guys doing my alignment to adjust it for me.

2013FSport

iTrader: (2)

WTF?? ^^ That's pathetic! And the logic was; "this vehicle did not come equipped with those components, therefore we can't adjust them??"

So are you having rear inner wear from camber and you want it more positive or is there a slim chance you want to go more negative for rear grip in the corners?

DickH

They had be problems reaching the control arm to adjust it and just gave up. My car was lowered before I bought it and then my rear suspension took some slight damage. Camber wasn't even and was more than I liked so I bought adjustable control arms to get everything to sit right. I can't remember but be the camber was like -2.5 to 3 ish or whatever. I have adjusted it to be ~-.5 degrees on both sides.

Gville350

iTrader: (10)

If the shop won't touch it, perhaps you can DIY instead with one of these :


Never used one, but have thought of having one handy just in case.

2013FSport

iTrader: (2)

Going with that concept; there are better tools out there for reasonable prices. But then you need floating turn plates for caster and toe, not to mention a level surface.
That said I adjust toe at home based on wear. Its just a reference point!
As I've said in other posts its not an absolute value. The OEM spec is a window. That window or the middle of that window may work for certain cars, tires, drivers but one setting will not apply to all vehicles/drivers across the planet.

The highway car needs one setting while the soccer van grocery getter city car needs a another. The change is tiny but it is the difference between getting 25,000 mile tire and 50,000 miles from your tires.