Upper control arms for bulk camber

[JordanWho]

I'm setting up my 86 for drift and want to run a lot of camber all the way around. For the rear I have ordered Whiteline camber bushings and Whiteline LCA's/toe arms. After reading various threads on here and other forums it seems adjustment in the upper arm is the way to go. I have found these upper arms and want to ask everyones opinions or if anyone is actually running them / has any experience with Racer X fab work.

http://www.racerxfabrication.com/fr-...rms/index.html

[wparsons]

If I needed camber adjustment I would have a set of those for sure. Depending on which direction I go over the winter I'll probably pick up a set then.

[DriftEightSix]

Racerx is a member on this forum FYI.

I was after a set also but the price has made me have to wait a little longer.

[OrbitalEllipses]

Yeah...$800 for arms that you can't adjust on the car? I appreciate the hard work and design, but no thanks.

[SLICVIC]

OMG WANT. with these, LCA's and camber bushings, we should be able to fit some serious offsets in the rear

[JordanWho]

Originally Posted by SLICVIC

we should be able to fit some serious offsets in the rear

[wparsons]

Originally Posted by OrbitalEllipses

Yeah...$800 for arms that you can't adjust on the car? I appreciate the hard work and design, but no thanks.

You don't need to worry about the trailing or toe links being adjustable when you run a adjustable UCA instead of LCA, that alone is worth it to me. With a LCA you need to adjust all three links whenever you change the camber setting, not just one.

[console_cowboy]

You don't need to worry about the trailing or toe links being adjustable when you run a adjustable UCA instead of LCA, that alone is worth it to me. With a LCA you need to adjust all three links whenever you change the camber setting, not just one.

Check out this lower control arm: http://www.spcperformance.com/index....tion&pid=67660

It only adjusts one point, not all three. The adjustment is on the opposite side of the control arm from most. In additional to that, it comes with a toe arm bushing to get more positive or negative toe.

[wparsons]

Originally Posted by console_cowboy

Check out this lower control arm: http://www.spcperformance.com/index....tion&pid=67660

It only adjusts one point, not all three. The adjustment is on the opposite side of the control arm from most. In additional to that, it comes with a toe arm bushing to get more positive or negative toe.

Those will still require adjustments to the trailing and toe links if you change the LCA length enough.

The "issue" is that the LCA, trailing link and toe link all work together as a pseudo LCA, and if you change the length of one of them you should change the other two to keep the wheel in the right place.

If you just lengthen the LCA you effect toe and also the longitudinal location of the wheel which effects anti-squat/dive geometry.

That said, small camber changes might not be so detrimental to the rest of the geometry, but if you change it enough it will definitely effect the rest enough that they'll need adjusting too.

[SLICVIC]

what he said^

this is a very good item to have available. Had to Buy GT Spec LCA and toe links , i'd like to see the camber setting range available with these

[console_cowboy]

I am hoping to get -1.5 deg of camber on each of my rear wheels using that control arm. I am hoping that the toe bushings included with the kit should help. I am currently sitting at -1.8 deg on one side and -2.4 deg on the other. I'd like to get the camber down to -1.5 deg with zero toe on the rear. The bushings should help some, but if I have to get replacement toe links I will.

Thank you for the excellent information. Hopefully I will not have any issue. I also have the KCA326 adjustable upper control arm bushings, but am having trouble finding someone who can install them locally without charging an arm and a leg. I lack the tools the do the bushing press myself. I may try to get them off and take them up to a shop. I am also unsure that I will be able to get enough adjustment from the bushing kit alone for the one side.

[OrbitalEllipses]

Using the SPC arm and toe bushings I ended up at -1.5 rear camber with 0 toe. Any less camber resulted in toe change. I'm only dropped 20mm so YMMV.

The Whiteline UCA camber bushings are good for +/- 0.75 camber.

In the end the LCA and toe arms (if needed) end up being cheaper if you install them yourself versus getting the arm removed, bushing pressed, and arm reinstalled.

[console_cowboy]

I am also only dropped 20mm or so with the RCE yellow springs. I am shooting for -1.5 in the rear, so that should be perfect. Hopefully I will have the same luck and be able to get that into spec.

If I require any more in the future, I could possibly remove the upper arms and have the bushings pressed in. The cost for that should be much less.

Also, which style control arms did you use? I used these: http://www.spcperformance.com/index....tion&pid=67660

I believe there is another style of arms as well, although the older style does not look as nice.

[OrbitalEllipses]

I have the other style.