Rear camber adjustment measurements

[divedoc]

I have adjustable rear camber arms and I’m about to make some tweaks. It occurred to me that someone must have figured out roughly how much camber arm length adjustments correlate to changes in camber. The distance between the upper and lower mounting points would be pretty simple to measure, and it would just take a little trig to figure out the rest. Has anyone done this?

[FBloggs]

I use a camber gauge, and would place the rear wheels on a pair of home made turn buckles to ease the adjustment.
I only use it to check, as camber adjustments will involve toe correction.
I no longer frequent the track, so I don't need to diy as you intend.

[bigjae46]

I think Turner correlates a length adjustment to a degree in camber change in the instructions. I've found an angle app on an iPhone is pretty accurate. Just need something flat to put on the wheel from top to bottom.

[mrgizmo04]

Side note - adjusting camber also changes toe in the rear, so as long ad you are aware...

Sent from my SM-G950U using Tapatalk

[timmo]

Ride height will affect this as well. What I do is buy a cheap digital angle gauge, and stick it on the rotor. It's proven to be fairly accurate

Sent from my SM-G781W using Tapatalk

[jet_dogg]

^that is a great idea, you can get an igauging or klein digital angle that is fairly accurate for that purpose

[Tbonem3]

I just use a string (distance from tire to fender) and make sure my distances are equal left to right both there and the length of the arms. Though I do so knowing I'm just playing around and will want a proper alignment when I'm ready (mostly to get toe correct; slightly in)

[divedoc]

I have a Longacre camber/caster measuring jig, although the level that came with it is malfunctioning. The jig is straight, though, so I'm using that with a replacement digital level/angle finder that is accurate within 0.1 degree. I also have toe plates, which you really need to combine with strings or some other method of measuring toe relative to the car itself and not just the two wheels being measured.

The TMS instructions do indeed have some rough estimates; that'll be good enough to get me in the ballpark before I fine-tune everything. Thanks for the tip! I'm at -2 degrees on the right and -1 on the left. It's kind of a shame, though, because my toe is spot-on...oh well.