from a purely performance standpoint. does lowering your car really help much? I just put some generic adjustable coilovers on my stock struts, and it now sits at a relatively stock height. I will probably lower it a bit, just for looks, but would the lower CG really be noticable on an AutoX course if I dropped it some more. btw, by the looks of things, with my spring perches, even if I were to adjust them all the way down (or go all Fuji, and run them without the adjustable part), it still wouldn't bottom out my struts. so that isn't really a factor
well a lower center of gravity will help. btw im still riding on those RS tophats, they havnt slipped off yet lol
lowering wil help to a point. there is a hole bunch of suspension geomtery stuff that i have no idea about. but i know that if you lower too much you will start to gain problems is understeer. from what i have heard the best performance can be had about 1"-2" below stock hieght.
Strut suspensions gain negative camber untill the lower control arm and the strut body make an angle of 90 deg. Then it gains positive camber, not good. Overlowering can put you out of the range of travel where your geometry is doing what you want it to. Generally, at the further regions of a suspension's travel, the roll center will also start to move at an accelerated rate. This is also bad news, making the car unpredictable. I'm trying to devise a way to adjust the vertical position of the lower ball joint, so I could, theoretically at least, adjust my camber gain to my rideheight. It also depends on what kind of camber the tires work best at. Suspension geometry is a very innertwined, complicated compromise. You have to give up something to get something. My antilift kit may gives me more static caster and much nicer turn-in, but with less anti-lift geometry in the front suspension. If you really want ot get into it, Bill Mitchell suspension design software is the shiznitobam sam. We have it for the Formula SAE car we are building and it saves you so much time in analyzing adjustments in geometry. You set up the suspension and run it through several different types of iterations like bump, roll, steering, and what not. Its all plotted, and you just keep making adjustments untill it does what you want within the given parameters, such as our two inches of travel, 1.8m wheelbase, and on and on and on.....
sweet info piddster.... keep in mind, this is an EA82 car. which means it's only vaguely similar to any EJ subaru, and only in the front....the rear is completely different. know what the factory camber setting is for an EA82 car? +2 degrees!!! and no adjustment. so I will be getting camber plates to adjust this. I also think I'll use some washers on the leading rod to change my caster... also no way to get the control arms beyond level with these springs on level ground.
