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BMW 3-Series (E90 E92) Forum
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KW Street Comfort
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05-31-2013, 10:15 PM | #45 |
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So if Im looking to keep or even improve on the BMW ride quality but also get a sporty handling, this is what I would want?
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05-31-2013, 10:24 PM | #46 |
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The more you lower the car the more you compromise ride quality and improve handling. This suspension improves handling on the street dramatically and also improves ride quality over OE. I wouldn't set it at its lowest position; I'd set it at KW's recommended ride height.
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2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD
Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, Koni/M3 susp, Apex Arc 8, Mich PSS Last edited by cvc 22349a; 12-10-2013 at 12:43 AM.. |
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06-01-2013, 01:08 PM | #47 | |
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Is the additional -0.5 increase in camber from -1.0 really noticeable on the streets? |
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06-01-2013, 01:18 PM | #48 |
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I spoke with forum member jfisher160 a while back. He has had the SC's for over 30k miles on his car. The only issue he encountered was that he needed to readjust the ride height after 15k miles due to the springs settling. IMO, not a big deal considering the SC's don't go that low.
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06-01-2013, 01:59 PM | #49 | |
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2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD
Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, Koni/M3 susp, Apex Arc 8, Mich PSS |
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06-01-2013, 02:32 PM | #50 |
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I've always known progressive springs to be more comfortable than linear springs. How do these manage to be the most comfortable coilovers out there if they have linear springs?
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06-01-2013, 03:01 PM | #51 |
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I don't get that either but according to KW the SC offers the best ride quality for this chassis. I don't think they're 'the most comfortable coilovers out there' Ohlins might be that. Again, I think KW uses stiffer, linear rate springs with this kit cuz it doesn't lower the car as much as the V series kits and I'm sure KW valves the dampers for these springs
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2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD
Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, Koni/M3 susp, Apex Arc 8, Mich PSS |
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06-02-2013, 08:50 PM | #52 |
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Linear springs enjoy the benefit of always having a matched rebound damping rate to control resonance, when set correctly. With progressive springs you are either tuning the rebound for the initial stroke or the final- even when tuned by a professional it is essentially always a compromise resulting either in overdamped jacking/harshness, or underdamped bounce. If you never push your car hard, this may never be noticed though which is why you tend to see a lot of progressive springs on the street market (they help with extreme lowering with bottoming-out control).
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06-20-2013, 11:53 AM | #53 |
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Does anyone, including the OP, know if SC's truly require spacers to work on from OEM wheels? I'm running wider than stock fitment 245's on my stock 19" 313's. Would prefer not to run spacers...
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06-20-2013, 12:15 PM | #54 | |
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btw, thanks for your previous post; makes sense.
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2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD
Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, Koni/M3 susp, Apex Arc 8, Mich PSS |
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06-20-2013, 12:27 PM | #55 |
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Appreciate that info, thanks man.
I'm leaning towards the GC street/tour setup if this one requires spacers. I *think* the GC coil is a smaller package overall since it uses barrel springs instead of stock type. |
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06-20-2013, 12:52 PM | #56 |
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[QUOTE=ashmostro;14196263]Appreciate that info, thanks man.
I'm leaning towards the GC street/tour setup if this one requires spacers. I *think* the GC coil is a smaller package overall since it uses barrel springs instead of stock type.[/QUOTE] Yep. GC uses shorter, narrower race profile springs. They have a hybrid 335/M3 susp that utilizes the M3 rear camber link. Based on your other thread, GC sounds like it'd better serve your needs for track days. I'd see if you can get the Koni's valved for the spring rates you select. This is a KW SC thread
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2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD
Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, Koni/M3 susp, Apex Arc 8, Mich PSS |
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07-02-2013, 11:03 AM | #60 |
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Not really. I'm very happy with this suspension! No 'bangs' over hard bumps/potholes like spring/shock combos. If I were to install it again, I'd try to get thrust sheets for the adjustable spring perches.
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2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD
Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, Koni/M3 susp, Apex Arc 8, Mich PSS |
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07-02-2013, 11:11 AM | #61 |
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07-02-2013, 01:29 PM | #62 |
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2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD
Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, Koni/M3 susp, Apex Arc 8, Mich PSS |
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09-23-2013, 10:59 AM | #64 | |
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Nothing else to report.
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2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD
Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, Koni/M3 susp, Apex Arc 8, Mich PSS |
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05-25-2014, 10:16 AM | #65 |
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What did you end up going with? Interested since I have an xi also.
Reviewing this thread as Im considering V1 vs SC but not sure if there would be much of a difference in how these perform on an xi. |
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