My review: Koni Yellows / Eibach Springs on a daily driven M3

[PipeUy]

Just installed this same setup on my car and took some pics. Tried to keep the angles/lighting/etc as consistent as possible. The pics were taken hours after I installed the springs, so I'm expecting the car to drop more with time. I'll take some more pics in the future. Top are before and bottom are after.

Did the car end up dropping more with time? Or was that the final ride height?

[cobra]

I've had my Koni/Dinan setup for quite some miles now and I'm no longer totally in love with them. They are more comfortable than stock and have a good feeling overall, but really suck and bottom out easily on bumpy roads. I wonder if they are starting to wear out or if I am just being picky.

[heinzboehmer]

Did the car end up dropping more with time? Or was that the final ride height?

Yeah I never did update this huh

I think the car dropped down slightly more, but I can't find too many recent pics that showcase it well. Here's the two best ones I found:




I'll try to go to that garage again soon and get some updated pics from the same angles.

[FBloggs]

I've had my Koni/Dinan setup for quite some miles now and I'm no longer totally in love with them. They are more comfortable than stock and have a good feeling overall, but really suck and bottom out easily on bumpy roads. I wonder if they are starting to wear out or if I am just being picky.

So adjust the Koni .
That is the brief of the Koni. Designed to be adjusted stiffer as they age.
They took advantage of tendencies of the customer base adjusting them stiffer from the get-go by then advertising 'em as "Sport" dampers.

[K-Dawg]

So adjust the Koni .
That is the brief of the Koni. Designed to be adjusted stiffer as they age.
They took advantage of tendencies of the customer base adjusting them stiffer from the get-go by then advertising 'em as "Sport" dampers.

Only rebound damping is adjustable on Koni Sports, which wouldn't help with bottoming out and could actually make it worse by increasing jacking down.

[cobra]

So adjust the Koni .
That is the brief of the Koni. Designed to be adjusted stiffer as they age.
They took advantage of tendencies of the customer base adjusting them stiffer from the get-go by then advertising 'em as "Sport" dampers.

As K Dawg says, rebound adjust is not a good way to make it feel 'stiff' and will reduce grip dramatically.

[heinzboehmer]

Did the car end up dropping more with time? Or was that the final ride height?

Retook the pics. Drop is super slight, but you can see that it's a little bit lower than before (most notably in the front).

[FBloggs]

Retook the pics. Drop is super slight, but you can see that it's a little bit lower than before (most notably in the front).

I noticed when photodocumenting mine, the height of the camera, and the angle of the incident light can make the gap look different in dimension.

[Obioban]

Konis and Eibach/Dinan/Stock springs is about as good as a DD suspension gets, IMO. Stock springs if you like more ground clearance, Dinan or Kono springs if you can't deal with the stock ride height. Keep the stock hats/RSMs, fresh bushings all around, add some sealed monoball RTABs, and you'll have a super dialed in, very stock NHV, setup.

[heinzboehmer]

I noticed when photodocumenting mine, the height of the camera, and the angle of the incident light can make the gap look different in dimension.

Yeah, that's true.

I did have my camera on a tripod and tried to both park the car in the same spot and have the camera in the same spot. Definitely not an exact science though. Having other cars around meant I couldn't place everything in the exact same spot, for instance.

[0-60motorsports]

has anyone ever tried Eibach Springs with CSL shocks?

[Tbonem3]

CSL shocks, I'd imagine, are tuned for a lower spring rate for a lighter car. The eibach springs are 8% stiffer than regular factory m3, so probably a mis-match for csl dampers.

[0-60motorsports]

CSL shocks, I'd imagine, are tuned for a lower spring rate for a lighter car. The eibach springs are 8% stiffer than regular factory m3, so probably a mis-match for csl dampers.

Thank you brother

[LSB4Me]

Sorry to bump an old thread . . . but this one seems to have all the right info and members involved.

The roads in Los Angeles are quite poor (bumpy, uneven, lots of concrete expansion joints) and I just can't seem to find the same happy place with the Ohlins. My car doesn't see the track and, although I love the ride height/stance on the Ohlins, comfort and ride compliance are king.

What does the brain trust here think about switching from Ohins RT to Koni/Dinan or Koni/Eibach for comfort purposes?

[Tbonem3]

Your 400lb front springs are the problem I think Max. I just went down to 343lb from 400lb myself last week. 400/628 like ohilns have is "pitchy" as MrGizmo said in the recent Ohlins thread. I wouldn't go up in the rear on a street car, so I would go down in the front. I was very happy with 325lb. Andre is very happy with 325lb. There's 325lb/350lb in standard, then there's 60N/mm (343lb) and 6kg (336lb) in metric, BUT that would requie you to buy camber plates so you may wish to scrap the whole thing, sell the ohlins and go with what I made Andre or a tried and true combo like Eibach or Dinan springs on Koni. Or KWv2/PSS10, esp if you already have or are willing to buy a bigger front sway bar (for those kits' progressive springs).

There aren't great middle grounds for suspension. I would get street camber plates from GC or TMS and run lighter front springs, but it will cost another $600 or so, and you won't recoup much if anything of the stock mounts and ohlins front springs. Ohlins are about as good as it gets, damper wise. But if you are "no-compromise" in comfort terms, perhaps just fresh stock components and call it a day?