Sportunage

Out of the box the preload seems too high. These things are wound tight. I’m thinking that we could research coilover kits from other manufacturers and even different cars with similar weight and weight distribution. That would give us CL owners a good reference point to start with which seems to be our biggest issue. We’re all guessing and trying different solutions without a good starting point and the manufacturers of these products don’t seem to be much help. If the shocks and spring rates are incorrect though, we’ll only be able to get it as good as the hardware will allow...

Sportunage

Just wanted to provide an update after about a month of driving on the yellowspeed coilovers. I do now feel the bounce in the rear. It’s not that bad for me but it’s unbecoming of a car of this caliber. I do have some tricks up my sleeve in my quest to make this thing handle as I intend. Did some spring rate calculations based on a formula used by Ridetech. I’ll be purchasing some rear springs and swapping them out. Also had some custom adjustable A arms made to correct front camber (issue for those using W220 lower control arms to mount front sway bar). Also found adjustable rear arm to allow for toe and camber adjustments in the rear. Fronts use polyurethane bushing which should help to further tighten things up. I keep you all updated.

Puerto Rick

Thanks for the update. what spring rates did the calculator come up with?

ctravis595

the changes In geometry of the w220 airmatic control arms will make the car more stable. I haven’t installed a front sway bar yet but even with just the w220 control arms I noticed a difference. The strut mounts to the control arm in a slightly different spot as most of you should recall

one downside to the w220 control arms/added stability is that the steering feels a bit more stiff/more work to turn the steering wheel

keep us updated on the spring rate situation... I’m of the belief the rear bounce probably can’t be dialed out in shock or spring settings, but would be very pleased to find out otherwise

paste

Did you get a clicking in the steering wheel while turning it when the car is not moving? That is the problem that I am facing at the moment.

Sportunage

I know it’s been a while since I’ve posted but, I just purchased some 900lbs springs from Draco. Made the calculation based on the vehicle curb weight and a 55/45 weight ratio (assumed). I’ll let you guys know how it goes.

Sportunage

Try tightening your preload 2 or 3 rotations. Yellowspeed says not to adjust the preload and that it’s already set but I can confirm that in my case that wasn’t the case. Was getting clunking from the front end. Tighten all suspension components 2x before adjusting the preload. Clunking gone.