I'm close to getting my first set of coilovers ever, and I'm wondering if any company makes a spring and strut together for the rears or is it not possible? I can't seem to find any pictures of what we actually put on our cars, as most websites just show a standard vendor provided picture.
Currently I'm considering three different ones:
BC Racing BR
K-Sport Kontrol Pro
ISC N1
I hope my question makes sense. And I've read one really bad review o the ISC N1 but it appears it was an isolated incident.
Any input on the others? Or perhaps suggestions of others in the 800-1200 range?
Just curious if the PRO is worth it? I'm looking for a drop and better handling over stock, but don't think I need full-on Caster/Camber control. Comps seem to be more my style then. Looks like the biggest different between the two are the front mounting plates. Am I wrong?
The caster plates and the springs. The spring on the Pros are a super light linear spring, if you want the best handling you probably want the Pros, if you want a balance for everyday driving with a little more comfort and don't care about the caster adjustment you may want the Comps.
My PSM's are really bouncy. Maybe I screwed up setting preload on them. I measured the length of each spring, set them to just tight and then added 1/2" of threading pressure to it. The spring length is at 7" top to bottom.
Any pointers? I can't find info on what is proper.
Looks like you added preload to them. They recommend zero preload which means the spring should be just snug enough not to move up and down when you wiggle it but still able to turn the spring with your hands.
They rebound really well, in my opinion. You might be mistaking bounciness for that. What did you set your damping levels at? Fix the preload first and foremost. I have them set at 9/12 front and 10/12 rear. It's somewhat more "stiff" feeling than the 8kg/6kg suggests but still comfortable and I ride low. It also might be that they need to be "broken in" a bit or you're just not used to the ride quality of coilovers just yet.
Yes, I totally set too much preload thank you for clarification. I'll have to wait till next week though. Right now damper settings are at 0/0 F/R. I think it's the preload that's the issue. I'll fix it on Monday or Tuesday (I work from Friday noon until Sunday evening).
Is there clearance issues with the PSM coilovers and wide tires in the rear? I usually run 295s but I have 305s on the rear right now. I don't want to be super low nor run a lot of camber in the rear (which would help the possible clearance issue)
I have 275s and have plenty of space. I am running roughly -1 camber all around and its in spec. I never measured space between coilovers and tires. I'm fixing preload tomorrow so I'll measure then.
Somewhat off-topic, but what are the pros and cons of running a true rear coilover and the standard independent spring setup?
On a rear coilover, since the spring is mounted farther out, it has better control of the wheel (which is the primary purpose of suspension) and thus allows you to use softer springs, right?
Whereas on the standard independent spring setup, the spring is more inward, which requires a heavier spring to be able to have as much control of the wheel, correct?
An inch of fender gap is exactly what I'm looking for as well, I assume there's no rubbing issues or anything at that height? I also was thinking about going with the PSM coilovers but cant get over the colors, they're cool but just not me.
So I fixed the preload today. My car feels better now but I also raised it a hair because I was rubbing on bumps at higher speeds. Now I sit about 1.5" fender gap and no issues.
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