5 series vs. X6 x50i - Cornering Stability
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Originally Posted by swajames' post='1084416' date='Jan 5 2010, 09:53 AM
Your opening premise is flawed. The X6 50i you're going up against is much, much quicker in the corners than you think it is, and your 523 is slower in the corners than you think it is. A better test would be for the X6 50i to take the lead and for you to see if you can keep up, right now I suspect you'll simply hold him up.
Either way - be safe. It sounds like you're planning on giving it the hammer on a very fast and very long sweeper, it can be much easier said than done to reign the car back in if you start to lose grip.
Either way - be safe. It sounds like you're planning on giving it the hammer on a very fast and very long sweeper, it can be much easier said than done to reign the car back in if you start to lose grip.
Bottom line...you like your car and your friend likes his. It'll be hard to change anyone's mind about who's car is "better" since it's all relative and opinion based...
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Originally Posted by Howitzer' post='1084422' date='Jan 5 2010, 10:05 AM
I have to admit that my 5 will take sharp turns at 70+ MPH with ease. However, that is mostly because I upgraded the shocks and struts to sport versions lowering the car and stiffening the suspension a great deal. If I had non-sport .... I would have probably flipped the car by now.
To the OP, it's fine to tear around the sweeper so long as you know and have a strong feel for your car's cornerning limits.
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Originally Posted by swajames' post='1084416' date='Jan 5 2010, 04:53 PM
Your opening premise is flawed. The X6 50i you're going up against is much, much quicker in the corners than you think it is, and your 523 is slower in the corners than you think it is. A better test would be for the X6 50i to take the lead and for you to see if you can keep up, right now I suspect you'll simply hold him up.
Either way - be safe. It sounds like you're planning on giving it the hammer on a very fast and very long sweeper, it can be much easier said than done to reign the car back in if you start to lose grip.
Either way - be safe. It sounds like you're planning on giving it the hammer on a very fast and very long sweeper, it can be much easier said than done to reign the car back in if you start to lose grip.
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Originally Posted by Shebs' post='1084431' date='Jan 5 2010, 10:20 AM
Can the technology offset the 44%? I don't think so.
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Originally Posted by Rudy' post='1084433' date='Jan 5 2010, 10:24 AM
Have you driven a car with active roll stabilization and/or a sports package? You'd be surprised what it feels like...
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Originally Posted by Rudy' post='1084433' date='Jan 5 2010, 05:24 PM
Have you driven a car with active roll stabilization and/or a sports package? You'd be surprised what it feels like...
I remember when I first started reading about the DD in 2004 that the actual difference in cornering speeds was around 2% (which is a lot considering that the centrifugal force is directly proporational to the square of the velocity, so it will result in 0.98*0.98=0.9604, i.e. 4% difference).
I currently have 245/40 R18 Michelin Pilot Sport 2 installed. Should I change the shocks and springs too? They are due anyways (my car has 136,000 km on the dial).
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the E60 corners better, but won't be as fast coming out of the bends.
now we need to compare a 550i v X6 x50i, the same result and the E60 corners better and is faster,
even a 530i will kill it.
now we need to compare a 550i v X6 x50i, the same result and the E60 corners better and is faster,
even a 530i will kill it.
Originally Posted by Shebs' post='1084437' date='Jan 5 2010, 11:33 PM
I agree with you that the ARS (Dynamic Drive where I live) will make the car "feel" much more stable. But will it be much more stable in cornering limits? Actually the complain against the DD was that it never makes you feel where the cornering limits are. The car will have very low roll, then suddenly you will lose grip, while in a normal car the roll will be progressive and you will be able to better judge the cornering limits.
I remember when I first started reading about the DD in 2004 that the actual difference in cornering speeds was around 2% (which is a lot considering that the centrifugal force is directly proporational to the square of the velocity, so it will result in 0.98*0.98=0.9604, i.e. 4% difference).
I currently have 245/40 R18 Michelin Pilot Sport 2 installed. Should I change the shocks and springs too? They are due anyways (my car has 136,000 km on the dial).
I remember when I first started reading about the DD in 2004 that the actual difference in cornering speeds was around 2% (which is a lot considering that the centrifugal force is directly proporational to the square of the velocity, so it will result in 0.98*0.98=0.9604, i.e. 4% difference).
I currently have 245/40 R18 Michelin Pilot Sport 2 installed. Should I change the shocks and springs too? They are due anyways (my car has 136,000 km on the dial).
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Originally Posted by Shebs' post='1084437' date='Jan 5 2010, 10:33 AM
I agree with you that the ARS (Dynamic Drive where I live) will make the car "feel" much more stable. But will it be much more stable in cornering limits? Actually the complain against the DD was that it never makes you feel where the cornering limits are. The car will have very low roll, then suddenly you will lose grip, while in a normal car the roll will be progressive and you will be able to better judge the cornering limits.
I remember when I first started reading about the DD in 2004 that the actual difference in cornering speeds was around 2% (which is a lot considering that the centrifugal force is directly proporational to the square of the velocity, so it will result in 0.98*0.98=0.9604, i.e. 4% difference).
I currently have 245/40 R18 Michelin Pilot Sport 2 installed. Should I change the shocks and springs too? They are due anyways (my car has 136,000 km on the dial).
I remember when I first started reading about the DD in 2004 that the actual difference in cornering speeds was around 2% (which is a lot considering that the centrifugal force is directly proporational to the square of the velocity, so it will result in 0.98*0.98=0.9604, i.e. 4% difference).
I currently have 245/40 R18 Michelin Pilot Sport 2 installed. Should I change the shocks and springs too? They are due anyways (my car has 136,000 km on the dial).
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Originally Posted by Shebs' post='1084437' date='Jan 5 2010, 10:33 AM
I agree with you that the ARS (Dynamic Drive where I live) will make the car "feel" much more stable. But will it be much more stable in cornering limits? Actually the complain against the DD was that it never makes you feel where the cornering limits are. The car will have very low roll, then suddenly you will lose grip, while in a normal car the roll will be progressive and you will be able to better judge the cornering limits.
I remember when I first started reading about the DD in 2004 that the actual difference in cornering speeds was around 2% (which is a lot considering that the centrifugal force is directly proporational to the square of the velocity, so it will result in 0.98*0.98=0.9604, i.e. 4% difference).
I currently have 245/40 R18 Michelin Pilot Sport 2 installed. Should I change the shocks and springs too? They are due anyways (my car has 136,000 km on the dial).
I remember when I first started reading about the DD in 2004 that the actual difference in cornering speeds was around 2% (which is a lot considering that the centrifugal force is directly proporational to the square of the velocity, so it will result in 0.98*0.98=0.9604, i.e. 4% difference).
I currently have 245/40 R18 Michelin Pilot Sport 2 installed. Should I change the shocks and springs too? They are due anyways (my car has 136,000 km on the dial).
I have no idea how to describe what I'm saying scientifically, I'm just stating that it's not just about how a dynamic drive car "feels" in a corner, there really is some physical "cheating" going on to help correct the car's tendency to obey the laws of physics. In other words, the car is throwing a curve at any forumula based on some linear force by changing it's own dynamics...
Does any of that make sense?
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Originally Posted by Rudy' post='1084445' date='Jan 5 2010, 05:42 PM
Don't forget, and I'm no scientist, that if the car rolls less (due to the technology), then the geometry of the "roll equation" is different. In other words, there is an outside force (dynamic drive) that is "correcting" the car's tendency to roll. That correction helps to maintain the car's weight distribution over all four wheels, etc.
I have no idea how to describe what I'm saying scientifically, I'm just stating that it's not just about how a dynamic drive car "feels" in a corner, there really is some physical "cheating" going on to help correct the car's tendency to obey the laws of physics. In other words, the car is throwing a curve at any forumula based on some linear force by changing it's own dynamics...
Does any of that make sense?
I have no idea how to describe what I'm saying scientifically, I'm just stating that it's not just about how a dynamic drive car "feels" in a corner, there really is some physical "cheating" going on to help correct the car's tendency to obey the laws of physics. In other words, the car is throwing a curve at any forumula based on some linear force by changing it's own dynamics...
Does any of that make sense?