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06-24-2012, 05:47 AM | #1 |
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Need help with KW Clubsports and M3 suspension conversion
Hi guys,
Just wanted some help with regards to whether I need all the options from here: http://hpashop.com/BMW-E8X-E9X-to-M3...conversion.htm if I am using KW Clubsports. I don't think I'll bother too much with the rear toe arms (last option), but I'm not sure about the rear lower camber link kits. Here: http://hpashop.com/BMW-OEM-M3-Rear-L...ink-e9x-m3.htm HPA talks about "Height adjuster, coil-over style spring with spring thrust sheets will be used. although not required, but highly recommended." And then a little further down: "If you are on KW(May be an option at a later date), Bilstein, Tein, etc. It is our recommendation to convert to either Koni or AST at this time." How will this work with my KW CS? Do I need to change to a Bilstein or Tein CO? I was actually looking at this thread: http://www.e90post.com/forums/showthread.php?t=177028 I got to page 6 before it started getting a little too complex for me. Is someone able to summarise it in noob terms for me and let me know if there is anything that needs attention to if I'm to get my KW CS working with the complete M3 suspension conversion? Thanks in advance! |
06-24-2012, 12:38 PM | #2 |
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If you get the rear camber links you will need a different rear shock. You would need a set of coilovers from a m1/3 not a 135i.
If I was doing it I would do front control arms, wishbones and anti roll bar as well as rear subframe bushings and that's it for m3 bits. That is the best $ to improvement from what I have read.
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06-24-2012, 12:49 PM | #3 |
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IMO the M3 rear control arms are very underrated on this forum. I had all the other M3 parts, and the rear of my car was still bouncy and wiggling around until I added M3 control arms and Rogue toe arms.
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06-24-2012, 08:07 PM | #4 | ||
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Thanks guys for your replies:
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And one more question GaryS, with regards to curing the bounciness and wiggling with the control arms, how did you know it was that, and not the toe arms fixing the problem? Thanks guys! |
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06-24-2012, 08:59 PM | #5 |
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sharkatron (I love typing that), I don't know how much either M3 control arm or the Rogue toe arm did separately since I got them installed at the same time.
I also can't answer your main question, about how important the rear camber link is, because I don't have that piece (I have regular 135i size Koni shocks). I do remember someone once asked Harold Lin to prioritize the various rear arms and he answered, "Guide rods, toe arms, lower camber link and upper arms". Putting it in perspective, the M3 rear subframe bushings fixed some pretty huge deflections, like a 1.5" bounce over bumps. The M3 rear arms plus Rogue toe arm fixed some smaller deflections, maybe 0.25-0.5". Now it feels right to me, so I don't feel like there's still something that needs to be fixed. There might be another 0.25" deflection left somewhere for the camber link to fix, but nothing more than that. |
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06-25-2012, 06:15 AM | #6 | |
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There's no two ways about it, but yes, M3 rear subframe bushings is definitely going to happen. Out of all the M3 suspension components, I know this is definitely the one to get. But I don't really hear much about the other stuff - even with sway bars - there is controversy as to whether it accentuates the understeer property of our cars, or actually improves it, but only at the limit. I'm as yet undecided about the sway bars. So Harold actually places lower camber links above upper arms? Hmm... If only there was a thread that explains what all the components do, that would be gold. Of course they all reduce deflections, but how? Or maybe I'm not using enough? But thanks for your reply - I'm just looking for an answer now to if I did do the camber links, whether I need to swap out my rear KW clubsport coilovers for some 1M/M3 ones... |
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06-26-2012, 03:21 AM | #7 | |
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Hope that helps. |
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06-26-2012, 05:09 AM | #8 |
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I'd like to know if that would work. If it would, I don't understand why HPA Shop says "If you are on KW(May be an option at a later date), Bilstein, Tein, etc. It is our recommendation to convert to either Koni or AST at this time."
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06-26-2012, 07:52 AM | #9 | |
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06-26-2012, 08:25 AM | #10 |
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06-26-2012, 12:32 PM | #11 |
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I would think different shocks front to rear would be okay as they are adjustable anyways. I also would just leave the m3 camber links off. It just would not be worth it to me. Just save yourself the money and trouble and stick with the clubsports and 135 camber links. That will still be a great set up.
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06-26-2012, 01:52 PM | #12 | |
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If I recall, they actually made a kit specifically for the M3 rear camber link conversion kit. |
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06-27-2012, 10:43 PM | #14 |
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07-12-2012, 12:22 AM | #15 |
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I am due for some suspension upgrades soon and this looks interesting. If I decide to go with the same rear M3 links, is KW my only choice? What else is out there? Is once better than the other and why?
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07-17-2012, 01:55 AM | #16 | |
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