Dinan tuned 335i
03-28-08, 01:30 PM
#21
] Variable M differential lock.
The variable, speed-sensing M differential lock on the rear axle ensures that BMW M vehicles handle with the best possible traction even in highly demanding driving situations.
A conventional differential lock transmits the overall drive power to the wheels depending on the momentum and forces conveyed by the wheel running on the more slippery side i.e. with a lower frictional coefficient.
Wherever this frictional coefficient is particularly low, for example on snow, gravel or ice, the lack of traction means that overall drive power is dramatically reduced.
The Variable M differential lock offers a decisive advantage even if the wheels are running on totally different surfaces with a very significant difference in their frictional coefficient. If there is an increasing difference in the speed of rotation on the two drive wheels, the system responds by increasing locking action. As a result, the wheel under less load - for example the inner wheel in a bend on a fast serpentine road - can no longer cause an overall drop in drive force. Forward drive power remains fully available.
In extreme cases, up to 100% of power can be channelled to the wheel with the better grip. In winter, this results in a significant boost to traction. The variable M differential lock ensures that BMW M vehicles handle with remarkable sure-footedness and deliver excellent driving stability.
The variable, speed-sensing M differential lock on the rear axle ensures that BMW M vehicles handle with the best possible traction even in highly demanding driving situations.
A conventional differential lock transmits the overall drive power to the wheels depending on the momentum and forces conveyed by the wheel running on the more slippery side i.e. with a lower frictional coefficient.
Wherever this frictional coefficient is particularly low, for example on snow, gravel or ice, the lack of traction means that overall drive power is dramatically reduced.
The Variable M differential lock offers a decisive advantage even if the wheels are running on totally different surfaces with a very significant difference in their frictional coefficient. If there is an increasing difference in the speed of rotation on the two drive wheels, the system responds by increasing locking action. As a result, the wheel under less load - for example the inner wheel in a bend on a fast serpentine road - can no longer cause an overall drop in drive force. Forward drive power remains fully available.
In extreme cases, up to 100% of power can be channelled to the wheel with the better grip. In winter, this results in a significant boost to traction. The variable M differential lock ensures that BMW M vehicles handle with remarkable sure-footedness and deliver excellent driving stability.
M Drive
An optional feature that offers a comprehensive array of choices when it comes to personalizing your M3 driving feel. Normally, Dynamic Stability Control (DSC) helps to deliver optimal traction; but with M drive, DSC can also be set to track oriented M Dynamic Mode (MDM), which allows for more wheel slip and yaw angle. Optional Electronic Damping Control (EDC) can be set to comfort, normal or sport, depending upon your preferred handling settings and the surface of the road. Also engine response can be tweaked via a button in the center console which calls up normal, sport or sport plus programs.
An optional feature that offers a comprehensive array of choices when it comes to personalizing your M3 driving feel. Normally, Dynamic Stability Control (DSC) helps to deliver optimal traction; but with M drive, DSC can also be set to track oriented M Dynamic Mode (MDM), which allows for more wheel slip and yaw angle. Optional Electronic Damping Control (EDC) can be set to comfort, normal or sport, depending upon your preferred handling settings and the surface of the road. Also engine response can be tweaked via a button in the center console which calls up normal, sport or sport plus programs.
03-28-08, 01:51 PM
#22
Advanced
Thread Starter
I am only considering the S4 after a friend convinced me to check out the Audi. It was more pricey and isn't Rear wheel drive. So less fun can be had while driving it I think. However, the NA V8 is nice in terms of reliability and not overheating. There is no replacement for displacement right? Still the Dinan 335i is a tough deal to beat in my view. In order to get an M3 that has all the options you are spending 70k+. Compare that with a 48k 335i + 1,500 bucks for Dinan reprogram. This a 20k difference easily not counting sales tax.
03-28-08, 02:04 PM
#23
Lexus Test Driver
All of which varies depending upon adjustments made via
http://www.bmwusa.com/Standard/Conte...e/Default.aspx
http://www.bmwusa.com/Standard/Conte...e/Default.aspx
03-28-08, 04:06 PM
#24
When I say gearing I am referring to the differential and the way it will behave depending on the adjustments made via M drive. You guys had in your minds adjusting the "gear ratio". I should of been more clear in explaining
Gearing, gears =differentential in car speak. The M drive adjustments will alter the LSD effect on the M3. The 335 does not have an LSD at all. 
Gearing, gears =differentential in car speak. The M drive adjustments will alter the LSD effect on the M3. The 335 does not have an LSD at all.
03-28-08, 06:08 PM
#25
Lexus Fanatic
iTrader: (20)
335i, 335i w/ Dinan, M3 - all GREAT cars. 
I wouldn't do Dinan because it's going to affect the reliability one way or another. I wouldn't do the M3 first year. So I'd go for 335i - it's PLENTY fast enough.
I wouldn't do Dinan because it's going to affect the reliability one way or another. I wouldn't do the M3 first year. So I'd go for 335i - it's PLENTY fast enough.
03-28-08, 06:29 PM
#26
M differential is just LSD. M drive does not change the differential raito. The M differential will function i.e. it will lockup upto 100% with or without the M drive. To me that M drive is pretty much useless gadget. Electronic Damping Control is much more useful but M drive specially since it comes only as part of Technology package is not worth $$
When I say gearing I am referring to the differential and the way it will behave depending on the adjustments made via M drive. You guys had in your minds adjusting the "gear ratio". I should of been more clear in explaining Gearing, gears =differentential in car speak. The M drive adjustments will alter the LSD effect on the M3. The 335 does not have an LSD at all.
Gearing, gears =differentential in car speak. The M drive adjustments will alter the LSD effect on the M3. The 335 does not have an LSD at all. 
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