550i "Floaty" At High Speeds?
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Originally Posted by jet190rs' post='379161' date='Jan 16 2007, 10:25 PM
depends on what you compare it to, but personally i think my e60 is indeed too floaty for my tastes.
because ars/dd minimizes roll, bmw let the car be softly sprung, in order to be comfortable when cruising. basically this car's suspension is a compromise, it corners very flatly, but it also *floats* over bumps. it tries to be both sporty in corners and luxurious in a straight line. while many ppl prefer this setup, for the sportiest drivers it just doesn't satisfy.
although side to side roll is taken car of ars/dd, the car pitches and rolls a lot vertically when going over bumps and fore/aft when accelerating/braking. these properties let the car cruise comfortably, but also make it floaty. compare with an e39, the e60 doesn't feel as solid, as hunkered down, or as glued to the road, at high speeds.
because ars/dd minimizes roll, bmw let the car be softly sprung, in order to be comfortable when cruising. basically this car's suspension is a compromise, it corners very flatly, but it also *floats* over bumps. it tries to be both sporty in corners and luxurious in a straight line. while many ppl prefer this setup, for the sportiest drivers it just doesn't satisfy.
although side to side roll is taken car of ars/dd, the car pitches and rolls a lot vertically when going over bumps and fore/aft when accelerating/braking. these properties let the car cruise comfortably, but also make it floaty. compare with an e39, the e60 doesn't feel as solid, as hunkered down, or as glued to the road, at high speeds.
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Originally Posted by jet190rs' post='379161' date='Jan 16 2007, 05:25 PM
depends on what you compare it to, but personally i think my e60 is indeed too floaty for my tastes.
because ars/dd minimizes roll, bmw let the car be softly sprung, in order to be comfortable when cruising. basically this car's suspension is a compromise, it corners very flatly, but it also *floats* over bumps. it tries to be both sporty in corners and luxurious in a straight line. while many ppl prefer this setup, for the sportiest drivers it just doesn't satisfy.
although side to side roll is taken car of ars/dd, the car pitches and rolls a lot vertically when going over bumps and fore/aft when accelerating/braking. these properties let the car cruise comfortably, but also make it floaty. compare with an e39, the e60 doesn't feel as solid, as hunkered down, or as glued to the road, at high speeds.
because ars/dd minimizes roll, bmw let the car be softly sprung, in order to be comfortable when cruising. basically this car's suspension is a compromise, it corners very flatly, but it also *floats* over bumps. it tries to be both sporty in corners and luxurious in a straight line. while many ppl prefer this setup, for the sportiest drivers it just doesn't satisfy.
although side to side roll is taken car of ars/dd, the car pitches and rolls a lot vertically when going over bumps and fore/aft when accelerating/braking. these properties let the car cruise comfortably, but also make it floaty. compare with an e39, the e60 doesn't feel as solid, as hunkered down, or as glued to the road, at high speeds.
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Originally Posted by Raighne' post='379078' date='Jan 16 2007, 02:28 PM
I notice that most of you who commented on how the car handles at speeds in excess of 100mph (in one case 160mph) live in countries with reasonably low-speed limits.
Do you not have traffic cameras and traffic police where you live or are do you just like living on the edge...
Or perhaps you ran these little experiments on on unrestricted sections of the German autobahn ...
Doing speeds like that here would almost certainly mean losing your license... so who cares how the car handles at 160mph really...
Do you not have traffic cameras and traffic police where you live or are do you just like living on the edge...
Or perhaps you ran these little experiments on on unrestricted sections of the German autobahn ...
Doing speeds like that here would almost certainly mean losing your license... so who cares how the car handles at 160mph really...
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Originally Posted by dlevi67' post='379219' date='Jan 16 2007, 11:57 PM
I don't feel it at all floaty with the standard SE suspension (and it's an E61!), nor does it manifest any wallowing under acceleration or braking.
- it's very unusual for Americans to be complaining about the sports suspension being 'floaty' and 'soft' when Europeans are saying it's firm and that even the standard is fairly firm. It's normally the other way around! Something's up...
It sounds like the US sports suspension must be a very different set of hardware (and the theory that because DD is standard in the sports package they could afford to add softer, comfortable springs for US models seems reasonable enough).
Does anyone have access to the parts system to compare the suspension components in the sports suspension in Europe and the US to confirm they are different (or the same).
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Originally Posted by Raighne' post='379523' date='Jan 17 2007, 11:13 AM
Something doesn't add up here at all...
- it's very unusual for Americans to be complaining about the sports suspension being 'floaty' and 'soft' when Europeans are saying it's firm and that even the standard is fairly firm. It's normally the other way around! Something's up...
It sounds like the US sports suspension must be a very different set of hardware (and the theory that because DD is standard in the sports package they could afford to add softer, comfortable springs for US models seems reasonable enough).
Does anyone have access to the parts system to compare the suspension components in the sports suspension in Europe and the US to confirm they are different (or the same).
- it's very unusual for Americans to be complaining about the sports suspension being 'floaty' and 'soft' when Europeans are saying it's firm and that even the standard is fairly firm. It's normally the other way around! Something's up...
It sounds like the US sports suspension must be a very different set of hardware (and the theory that because DD is standard in the sports package they could afford to add softer, comfortable springs for US models seems reasonable enough).
Does anyone have access to the parts system to compare the suspension components in the sports suspension in Europe and the US to confirm they are different (or the same).
DRP
#27
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There is a recall out for the steering wheel sensor and a TSB out for the rear shock bushings (mandatory replacement in Germany however)...I read the whole stickie @ Bimmerfest and these seem to be the culprit. One US owner living in Germany had these done and had said the car feels rock solid while before it was downright floaty above 120 mph on the Autobahn.
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Personally I believe BMW were too fast to fit cars with RFL tyres. I remember my first ride in an E61 535d 2005 and it was harsh! How people could put up with this ride I dunno - and the problem gets even worse in Sweden as we have a tarmac that is more "rugged" than the tarmac in Germania. Being hesitant about the ride I waited for the coming suspension upgrade and when I drove an E91 535d -06 a couple of weeks ago it was a completely different car!
When the E92 was presented a BMW spokesman replied to a journalist's exclamation that the car had a wonderful ride that "we have had 1,5 years to learn and improve". I believe that they have taken a) the sophisticated ride and b) the new generation of RFL:s and combined them into a much more pleasant package.
When the E92 was presented a BMW spokesman replied to a journalist's exclamation that the car had a wonderful ride that "we have had 1,5 years to learn and improve". I believe that they have taken a) the sophisticated ride and b) the new generation of RFL:s and combined them into a much more pleasant package.
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Interesting amount of comments on floating. No "Float" issues with my sport package equipped 550. Feels very solid and secure at 100+. Fastest I have gone is 141 mph on a rural 2 lane open stretch and the feeling of being floaty never entered my mind. Maybe I was too worried about what would happen if a deer or something ran out in front of me, but the car felt really glued to the road and with no sense of bounce or wandering.