323i with iDrive or 320d

[docrayboy]

sports suspension makes the ride more bumpy? so the rear passenger will be uncomfortable?

Of course its not the most comfortable of rides for the back passengers but it's the tight sports suspension that keeps the car's body from rolling when you take the bends fast....and with the 320d, youi will need those hard sports suspension because you take everything hard and furious-bends, straights...whatever the roas throws at you! Van Diesel wouldn't be able to catch up with you in the 320d, nemesis. Get one fast! Life ain't worth living without a 320d. What do you drive now, bro?

 

[TheNemesis]

Of course its not the most comfortable of rides for the back passengers but it's the tight sports suspension that keeps the car's body from rolling when you take the bends fast....and with the 320d, youi will need those hard sports suspension because you take everything hard and furious-bends, straights...whatever the roas throws at you! Van Diesel wouldn't be able to catch up with you in the 320d, nemesis. Get one fast! Life ain't worth living without a 320d. What do you drive now, bro?

haha. pmed u wat car i drive.

btw, im new to these higher end cars.

wat do u mean by " tight sports suspension that keeps the car's body from rolling when you take the bends fast....and with the 320d, youi will need those hard sports suspension because you take everything hard and furious-bends, straights..."

please further explain it please. thanks !

 

[docrayboy]

haha. pmed u wat car i drive.

btw, im new to these higher end cars.

wat do u mean by " tight sports suspension that keeps the car's body from rolling when you take the bends fast....and with the 320d, youi will need those hard sports suspension because you take everything hard and furious-bends, straights..."

please further explain it please. thanks !

If the suspension springs ( shock absorbers) are tight, there will be less body roll and up and down movement but when you go over a bump, it feels harder because the tight springs don't absorb the shock so much.....me thinks. You need toight suspension settings because at high speeds, everything gets magnified...its not 1 mini bump you go over but 20 because you are travelling 20 times faster than normal. So, you don't want to mess around...you want tighter sports performance suspensions. You want a BMW.

 

[TheNemesis]

If the suspension springs ( shock absorbers) are tight, there will be less body roll and up and down movement but when you go over a bump, it feels harder because the tight springs don't absorb the shock so much.....me thinks. You need toight suspension settings because at high speeds, everything gets magnified...its not 1 mini bump you go over but 20 because you are travelling 20 times faster than normal. So, you don't want to mess around...you want tighter sports performance suspensions. You want a BMW.

why must it be tight when high speed? avoid the car to skid?

 

[astroboy]

why must it be tight when high speed? avoid the car to skid?

Not to avoid car to skid but to reduce body roll during high speed sweeper as illustrated below.

.. and of course, for the driver to have better steering feel of every bump and unevenness on the road so driver can react faster to gain control of the car. At 200kph, every milliseconds is crucial.

There's a price to pay for all this good driving dynamic.. parts will not last as long as cars with soft suspension. On the old E30, the rear strut mount will even crack up because too much shocks sending through the chassis as oppose to another car that has soft and comfy suspension.

 

[TheNemesis]

Not to avoid car to skid but to reduce body roll during high speed sweeper as illustrated below.

.. and of course, for the driver to have better steering feel of every bump and unevenness on the road so driver can react faster to gain control of the car. At 200kph, every milliseconds is crucial.

There's a price to pay for all this good driving dynamic.. parts will not last as long as cars with soft suspension. On the old E30, the rear strut mount will even crack up because too much shocks sending through the chassis as oppose to another car that has soft and comfy suspension.

thx! now i get the better idea. the maintenance cost will be approximately how much? to change the rear suspension parts?

 

[JediM]

springs and shocks are two discreet components of suspension setups... springs provide vertical (up/down) control of the suspension, while shock absorbers dampen the springs, meaning it cancels out uncontrolled up/down movement which results in bouncing... Spring recoil (the rate at which up and down movement occurs under load) determines the 'stiffness' or 'hardness' of suspensions, while the rate of absorption of the shocks serve to regulate how quickly the spring reacts to bumps and dips in the road...

....therefore... the shocks and springs serve to determine how much contact with the road your car maintains and to what level it reacts to the conditions of the road... body roll etc is a function of lateral stability, provided by lateral dampers in the suspension, such as struts and panhard rods... these components provide lateral (side to side) stability...

 

[TheNemesis]

springs and shocks are two discreet components of suspension setups... springs provide vertical (up/down) control of the suspension, while shock absorbers dampen the springs, meaning it cancels out uncontrolled up/down movement which results in bouncing... Spring recoil (the rate at which up and down movement occurs under load) determines the 'stiffness' or 'hardness' of suspensions, while the rate of absorption of the shocks serve to regulate how quickly the spring reacts to bumps and dips in the road...

....therefore... the shocks and springs serve to determine how much contact with the road your car maintains and to what level it reacts to the conditions of the road... body roll etc is a function of lateral stability, provided by lateral dampers in the suspension, such as struts and panhard rods... these components provide lateral (side to side) stability...

wow. this is very informative. thx

 

[JediM]

..not saying that shocks and springs do not contribute to controlling body roll, as they are all part and parcel of a suspension unit that must function in unison....

 

[TheNemesis]

..not saying that shocks and springs do not contribute to controlling body roll, as they are all part and parcel of a suspension unit that must function in unison....

thx mentors.