what does that roll center adapter do?

 

same question i was gonna ask...

 

stock


lowered


lowered with roll center adapter




Sorry it's in Japanese...but it works for me (doesn't do much good though for everyone else ). the only problem is, there is none for the rear.

pics courtesy of Night Pager

 

my god... i just noticed how thick that brake rotor is in the last pic. and it's a jzs147

 

how does work, in comparison to ikeya's RCA design?



i really don't know how this works... i didn't even know it was an issue until now

 

I introduced this "camber solution " a couple of years ago..This RCA goes between the lower balljoint and the steering knuckle.It actually lowers the car about a half inch so its perfect for those with coilovers that don't drop that low and it corrects the camber enough to properly align..If you were to install these on a car that is already lowered on coilovers you will need to raise it or the car will be too low and could cause fender damage from being so low..Now this solution will only benefit those who have coilovers because you can adjust the height of your car unlike lowering springs..You don need to worry so much about the rear because any alignment shop can correct it within a few mm..If anyone needs more info on these feel free to PM me..

 

why are the 2 designs shown above so radically different? ie. one is essentially a spacer, the other replaces the entire arm... which is better?

my rear camber was almost -2 degrees... the aligment shop max out the adjusters and it's still nowhere near max negative allowable spec in the book

 

so... this means i can actually drop my tein CS's without having to worry about the front struts bottoming out on the bumpstops??!

 

translated (well sort of...):

http://babelfish.yahoo.com/translate...rUrl=Translate

 

The other benefit is you get more suspension travel if your suspension is bottoming out at the lowest setting.

I haven't aligned my car yet since the drop 4 days ago but I hope its not bad. I'm more worried about toe than camber...if I get the numbers and if its somethign horrid like 5degrees of camber, I'll PM you.

 

I believe the one thats and entire arm is for the rear and the spacer is for the front..
This spacer will also allow you to fit LS400 4-pot calipers without any issues..

 

Thats correct..These spacers are the answer for all TEIN CS owners who more drop but no bottoming out..

 

i checked the website again and it's definitely the front... you can see it with the tension arm bolted to it in this pic:



maybe it has different (higher?) mounting points for the ball joints and lower shock mounts on the arms?

 

seeing as i just recently changed out all 12 control arms with ikeya counterparts on my SC, i'll give a little feedback on them. The control arms are fully adjustable and work in conjunction to your stock adjustments. Also, since it doesn't seem like it's noticeable in those pictures, the Ikeyas allow you to bring in the lower part of the tire as well. It is a full adjustability that's not just to add negative camber. As for me, I had pushed out the upper tires, while maxing the stock camber bolt negative. The alignment shop was able to bring in some to maintain my -1 degree setting of camber. I'm not sure how the GS compares to the SC in terms of suspension, but the ride is far from kidney killing stiff. If anything, it's just overall firmer but still soft. After having rode in a 07 3 series, I would place it along the lines of slightly stiffer than that. I hope this helps the GS guys out with their decisions for suspension.

edit: also if you're in norcal, I'd be willing to give you a ride to let you feel for yourself (most likely during EOS)

 

so you're saying if you drop the CS's to the lowest setting the suspension will bottom out? I was planning on putting my CS's on the lowest setting.