just wondering if anyone has had any experience with roll center adjusters. i was considering picking these up if i planned to still run 15" on coils for the summer but i may be getting a set of 16’s. i haven’t had any time so far to take any measurements for cg and rc (which yields the rolling moment arm) so before i took some time to do that i was wondering if anyone could give me a heads up as to whether or not i’ll need them on a 15" or 16" setup. for both setups it’d be ~ stock flush with maybe a roll at most (on the rear). i’d probably expect around 1/2" clearance on the fronts relative to the inner lip on the top of the front wheel well. so yeah, given this set height for both 15’s and 16’s, will the lca’s need to be restored or should it be okay?
Its just all 4 lower control arms. Companies like SPL makes them. They are approx. $600 a set (f/r seperately) so 1200 in total if you wanna do things right.
Although these are incredibly useful in correcting lowered and messed up geometry, they are INCREDIBLY difficult to fine-tune and nobody in the GTA will touch these, or atleast I highly doubt anyone will.
No, the LCA’s your talking about osad are not Roll center ajusters, their just adjustable LCA’s. Although they may come with RCA’s in them, the RCA itself is the Balljoints that are installed in LCA’s. I know there are rca’s made for the S chassis, Megan racing makes them, but if you want a more reputable name the moonface ones are roughly $250 a pair.
By the sound of the height you will be set at, I dont think its at all imperitiave to have RCA’s, you’d have to be really slammed to justify needing them, or having a dedicated race car would also do it.
alright cool thanks. yeah technically the rca’s for our cars refer to extended studded ball joints. from what i’ve seen, most rca’s are usually spacers with the center hole for the joint and 2 smaller outers for extended studs to the knuckle (or a few other ways). i was trying to think of a way to make this spacer method work for our setup but in the end, you still need a longer joint stud. i agree that it’s not worth the buy for mostly street, but it’d still definitely be something nice to have i guess.
It’s the same principal trevor. Sure it may be the joints that do the actual roll center adjustment. But do you want to put that kind of EXTREME stress on worn out old 20 year old lower control arms? No.
^agreed. i would say the orientation of the loading on the joint is actually almost independent of the most common failure mode of these lca’s, that is, yielding forward or backward, giving it the ‘L’ shape. if you track the car on a regular basis however, i would recommend getting brand new lca’s.