FC3S Murray

iTrader: (7)

I was just reading on the effects of a cars roll couple when the lower control arms are in a upward angle instead of being downward OR at least horizontal with the ground.

My FC with my BC coilovers and a modest drop has positioned my lower control arms at a very slight upward angle.

I am just curious if this is a bad handling attribute? My cars performs great handling wise....just curious if anyone knows any info on this?

j9fd3s

iTrader: (3)

the effect is slight, but it is there.

if the arm moves in an arc, then maximum negative camber on a strut car (fc/fb) is the point where the arm is horizontal, or the longest.

although if you move the suspension thru its travel, the effect is pretty small.

the other concern is that as the arms point up the roll center goes under ground, ideally it would be around the actual CG (the roll center moves with the suspension, its not one fixed point)

if you look at the rx8, you'll see that mazda raised the lower control arm pivot points.

Josh18_2k

iTrader: (3)

dont worry about it. you cant adjust it at all (other than raising the car), and its not a srs bznn racecar, so who cares.

ideally, you'd have someone make drop spindles, but that crap is expensive

LargeOrangeFont

iTrader: (7)

Well you need either a new front crossmember to raise the inner mounting points of the control arm (major fab work needed), or extended ball joints with bump steer spacers (much easier).

Realistically, this is not a huge deal, the suspension will work best where you have it set. It will not really help to go any lower.