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      04-11-2015, 05:17 PM   #1
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Question Adaptive suspension options?

So, I've been looking for optional strut replacements to match the HR lowering springs for the M235. Started with Bilstein, checked Koni, but cannot seem to find a set of struts that will plug and play with the adaptive OEM setup.

Has anyone found a set that will or know of a manufacturer working on a solution?
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      04-14-2015, 05:37 AM   #2
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There are none. Don't expect any, either.
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      04-14-2015, 09:28 PM   #3
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Quote:
Originally Posted by Racer20 View Post
There are none. Don't expect any, either.
Is that because there is a history of no manufacturer creating compatible struts or just a personal opinion?

I know Bilstein makes an adaptive coilover suspension that is in compliance with BMW and Audi adaptive settings, as one example.
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      04-15-2015, 07:50 AM   #4
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http://www.kwsuspensions.com/kw-ddc-...html?typ=26513
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      04-15-2015, 06:16 PM   #5
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I stand corrected. I'm curious how they make their damper work without modifying the software calibration.
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      04-15-2015, 06:22 PM   #6
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Quote:
Originally Posted by Racer20
Quote:
Originally Posted by pikcachu View Post
I stand corrected. I'm curious how they make their damper work without modifying the software calibration.
I think the wires just sends the signal to open or close the valve so the tunning is done on the cool over itself to let more or less oil in and out
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      04-16-2015, 04:44 PM   #7
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If you are looking for sport springs, contact Swift and show your interest. There Spec-R series has been excellent and far exceeds H&R and Eibach in terms of quality and performance.
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      04-16-2015, 04:59 PM   #8
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Quote:
Originally Posted by pikcachu View Post
I think the wires just sends the signal to open or close the valve so the tunning is done on the cool over itself to let more or less oil in and out
No, the valve is infinitely adjustable every 10milliseconds. The damper internals essentially determine the softest and hardest setting, and the electronic control is constantly adjusting to any point within that range depending on the road conditions and driver input. So the electronic control is a huge part of how the damper performs, and in my experience, the software needs to be recalibrated for even a small change to the damper internals.

I could imagine a couple possible solutions, but none of them would be ideal.
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      04-16-2015, 09:56 PM   #9
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Quote:
Originally Posted by Racer20
Quote:
Originally Posted by pikcachu View Post
I think the wires just sends the signal to open or close the valve so the tunning is done on the cool over itself to let more or less oil in and out
No, the valve is infinitely adjustable every 10milliseconds. The damper internals essentially determine the softest and hardest setting, and the electronic control is constantly adjusting to any point within that range depending on the road conditions and driver input. So the electronic control is a huge part of how the damper performs, and in my experience, the software needs to be recalibrated for even a small change to the damper internals.

I could imagine a couple possible solutions, but none of them would be ideal.
Not sure then. Maybe email KW for more details.
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