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BMW 3-Series (E90 E92) Forum
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Birds Suspension Vs BMW Performance Suspension Vs AC Schnitzer Suspension
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02-11-2013, 11:43 AM | #45 |
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Why? Not enough damping force in the rear?
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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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02-11-2013, 11:50 AM | #46 |
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Might be a bit to hard...
The car is quite tail happy which was to be assumed. Especially with the Quaife in place. But that's hardly the problem. I have a feeling the suspension is not doing its job. Feels as if the springs are doing most of the work before the dampers get a chance to properly engage in the process. The dampers have not been revalved
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335 - Öhlins//Swift//M3 front suspension//M3 subframe bushes//Quaife LSD//AR Design Catless//Forge Intercooler//Alcon BBK//Goodridge//AFE//RPI//Fenders - SOLD M4-Mineral Gray/Full Shakir Orange/DCT/M Ceramic/M Adaptive Susp. |
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02-11-2013, 12:17 PM | #47 | |
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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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02-11-2013, 12:45 PM | #48 |
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Before purchased I was informed by Aurok that revalving was not necessary due to the large damping range and low wheel rate because of the motion ratio at the rear.
With the 672 rear spring, I spent quite a while adjusting one click at a time to find a setting I'm happy with on the road, and at 8 clicks from full hard it's perfect for me. At say 12 clicks it is even more comfortable but the rebound damping is still controlling the rebound of the spring ok, as can be felt at high speeds where there is no 'floatiness' that is apparent with inadequate rebound damping. I'm also quite experienced in suspension setup having custom suspension built to my specs for my sprint car and other cars I work on, designed and built my own top mounts, custom ball joints for roll centre adjustments etc. So I understand fully what is happening and how to adjust by the 'feel' of the car. With the DFV valving, it's basically like having quite soft fast bump and rebound valving stopping the car being 'upset' by aggressive bumps/holes/lumps! In regards to 800lbs being too hard, my car is an E91 touring so I think is heavier at the rear than the coupe or saloon, also, I personally like a firm setup, and at the moment it's still too soft for me. |
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02-11-2013, 05:30 PM | #49 |
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^ thanks for the feedback
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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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02-12-2013, 10:23 AM | #50 | |
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02-12-2013, 11:05 AM | #51 | |
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I'm not really after the meaner look to be honest and i don't want the slammed look. My driveway is not suitable! |
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02-12-2013, 02:56 PM | #52 | |
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You'd still be surprised how quality dampers like Ohlins can absorb large compressions easily and safely without harshness or a rough ride even with firm spring rates, it's all down to the clever damping design and high spec materials used. Those who are serious about suspension will be more interested in quality dampers and the correct setup for their application, rather than just lowering for looks. In this respect, ride height will be governed by spring rates and bump damping adjustment, not aesthetics. |
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02-12-2013, 03:40 PM | #53 | |
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Either way I'd be up for comparing notes and meeting up |
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02-12-2013, 06:56 PM | #54 | |
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In comparison, the KW 2 way competition units I run on my sprint Evo were around £3.5k and even running much harder springs, they are still compliant on the road. You find that high quality suspension is much, much more comfortable than cheap poor quality stuff even though the spring rates may be harder. I personally think it's one of the most important components on the car, controlling grip, handling and comfort in equal amounts. Would be good to meet up sometime, I'm only up the road! |
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02-13-2013, 05:17 PM | #56 | ||
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I was looking for the kit for my e91, first time I saw it was at autosport show in Jan, the more I see the people review their ohlins, the more I would like to give it a try. It's a shame I am quite far from your area, would be awesome to have a touring meet, and see your set up. Would you mind telling us where you got the kit from and I may send an enquiry to get a quote . Cheers Sam Edit: don't think it work or show quite well on iPad |
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02-13-2013, 08:30 PM | #57 | |
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The Ohlins really is a nice setup, very comfortable and controlled. The only downside I can see is requiring stiffer rear springs from what comes with the kit. |
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