Hi guys,

Anyone using the Vision front upper control arms? Can someone confirm if they are caster adjustable .. or only camber adjustable?

Pls post your personal reviews

Thanks!

 

Do you have a picture of them? We could probably tell with just pic.

To my knowledge, only the SPC UCAs adjusted caster and camber, but I can't say that for certain. Bump for a better answer.

 

I have them, and they are only camber adjustable. Negative camber that is. Doesn't really do much at all either.

 

Also, if this is for an EG or DC, you can always swap the UCAs left to right to gain caster at the cost of suspension travel.

I'm currently running SPC UCAs swapped, with the caster adjusters maxed out, and have 4.0* of caster. However, I still haven't decided if the added bumpsteer is worth it, and it is rather obvious how much it has changed on large bumps.

 

Heres a pic:



so your saying theyre only camber adj?? bump for more answers

they look similar to the SPC arms.

 

There is no caster adjustment to be seen.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TPB &raquo;</TD></TR><TR><TD CLASS="quote">There is no caster adjustment to be seen.</TD></TR></TABLE>

 

Thanks guys

So tell me what you see and I cant see .. how can I tell if a UCA has caster adj?

Should there be another set of adjusting screws sliding left/right??

 

Do you know what caster is? Why do you want to adjust caster anyway? If you're set on changing your caster, simply swap the uca's from left to right.

You have a sliding camber plate on the arm - that's it, there's nothing more. If someone told you those are caster adjustable, they are pulling your leg.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TPB &raquo;</TD></TR><TR><TD CLASS="quote">Do you know what caster is? Why do you want to adjust caster anyway? If you're set on changing your caster, simply swap the uca's from left to right.

You have a sliding camber plate on the arm - that's it, there's nothing more. If someone told you those are caster adjustable, they are pulling your leg.</TD></TR></TABLE>

This reply is correct. Simply having a sliding plate on the arm will only adjust camber, unless the holes for the slider are not perpendicular to the UCA mount points, in which case caster will adjust as camber is adjusted, and you never get them even left to right.

SPC install instructions
You can see how they adjust caster. The balljoint is offset, and you rotate it on the arm to change the position forward or backward, to remove or add caster.

Go here
and enter 72160 in the search box.

Additionally, any camber adjusting UCA sliding bushing set can be used to adjust caster to a limited degree. You just set the front and back bushing to different depths, though that will probably accelerate bushing wear. The first time my car was aligned with them, I ended up with 0.1* caster, because the rear bushing wouldn't adjust in without rubbing the UCA, so my upper ball joints were pushed forward.

 

thx tunernoob

 

Caster is the position of your wheels in the wheel well either forward which is negative caster or backward which is positive caster

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spoonef &raquo;</TD></TR><TR><TD CLASS="quote">Caster is the position of your wheels in the wheel well either forward which is negative caster or backward which is positive caster
</TD></TR></TABLE>

Um, no. Caster is the inclination of the upright, not the position of the wheel. Its the difference between a vertical line, and the inclination of the car's steering axis. Pushing the top of the upright back, or pushing the bottom forward, will both yield additional positive caster, but they position the wheel much differently than each other in the wheel well.