BMW M3 Forum (E90 E92) - View Single Post

MaximusB · 09-10-2022, 11:40 AM

Yes, I know there are many coilover threads and I have read most of them. But I am looking to upgrade my suspension and would like to get some comments on what is ideal for me.

I have been doing HPDE for the past 4 years with around 15 track days. Past couple of years, especially this year I've been placed in mostly the advance group. Looking at my logs, my pace have been improving year over year. This year I was able to beat my previous PB by a full 4 seconds at one of the track. Going forward I do see myself doing 5-6 track days a year, possibly more down the road.

So far the only suspension upgrade I have is GC camber plates. Other than that, I am on stock ZCP suspension. Do I feel the stock suspension is holding me back? No, probably not and there is definitely more pace I can get out of the car as is. For example when an experienced instructor drove my car he got an extra 4-5 seconds out of it comparing to my time.

Having said that my car has 86000km on it and it is a weekend car, not daily. So I don't mind experimenting with a new setup that is more track oriented. Yes yes I know the train of thought is don't upgrade till I extract all the potential out of the car. But I am itching to try something new for next year. Given the car is not a daily I don't mind giving up some comfort for performance. However the two popular tracks near me are about a 5 hour drive away, one way. Even though the drive is all highway, I still do want some comfort.

I have reached out to Bimmerworld and they recommended MCS 1 way with Eibach 700F/1000R springs, Vorshlah camber plates and GC rear articulating spring perch. And yes, I am ready to ditch the EDC. Last year my edc started to feel a bit "different" where I no longer feel much difference between comfort and sport setting.

My questions are:
- Is 700F/1000R spring rate too stiff for some street driving?
- Should I go with softer springs and upgrade just springs later when my driving improves more?
- Given my level of HPDE, should I go with something like Ohlin R&T or KW instead? Although my preference is buy once cry once. I rather spend the money to get the right setup and not having to upgrade again shortly down the road.
- Should I consider MCS or other 2way dampers instead of 1 way? Price wise is not much of a difference between MCS 1 way and 2 way non-remote.

Thoughts?

09-10-2022, 11:40 AM	#1
MaximusB Major 1482 Rep 1,371 Posts Drives: 13 Frozen White E92 Join Date: Apr 2016 Location: Vancouver iTrader: (0)	Coilover Selection Yes, I know there are many coilover threads and I have read most of them. But I am looking to upgrade my suspension and would like to get some comments on what is ideal for me. I have been doing HPDE for the past 4 years with around 15 track days. Past couple of years, especially this year I've been placed in mostly the advance group. Looking at my logs, my pace have been improving year over year. This year I was able to beat my previous PB by a full 4 seconds at one of the track. Going forward I do see myself doing 5-6 track days a year, possibly more down the road. So far the only suspension upgrade I have is GC camber plates. Other than that, I am on stock ZCP suspension. Do I feel the stock suspension is holding me back? No, probably not and there is definitely more pace I can get out of the car as is. For example when an experienced instructor drove my car he got an extra 4-5 seconds out of it comparing to my time. Having said that my car has 86000km on it and it is a weekend car, not daily. So I don't mind experimenting with a new setup that is more track oriented. Yes yes I know the train of thought is don't upgrade till I extract all the potential out of the car. But I am itching to try something new for next year. Given the car is not a daily I don't mind giving up some comfort for performance. However the two popular tracks near me are about a 5 hour drive away, one way. Even though the drive is all highway, I still do want some comfort. I have reached out to Bimmerworld and they recommended MCS 1 way with Eibach 700F/1000R springs, Vorshlah camber plates and GC rear articulating spring perch. And yes, I am ready to ditch the EDC. Last year my edc started to feel a bit "different" where I no longer feel much difference between comfort and sport setting. My questions are: - Is 700F/1000R spring rate too stiff for some street driving? - Should I go with softer springs and upgrade just springs later when my driving improves more? - Given my level of HPDE, should I go with something like Ohlin R&T or KW instead? Although my preference is buy once cry once. I rather spend the money to get the right setup and not having to upgrade again shortly down the road. - Should I consider MCS or other 2way dampers instead of 1 way? Price wise is not much of a difference between MCS 1 way and 2 way non-remote. Thoughts?
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