M Engine Dynamics: Sport and Sport Plus mode difference

[TRKY]

So still under 1200 miles, not generally revving past 4k rpm. I am trying to understand the differrence between sport and sport plus modes. Is the difference just a more sensitive throttle in sport plus but same HP if I floored the throttle relative to being in sport mode or is sport plus producing more HP throughout?

[vampire81]

Same HP

[Needsdecaf]

Same HP in all modes.

[dkhm3]

Just throttle sensitivity. Sport plus great for erratic driving and being an ass.

[Lups]

Originally Posted by dkhm3

Just throttle sensitivity. Sport plus great for erratic driving and being an ass.

Yup, always on that mode and the reasons for it were well listed by you.

[chiplee]

On that note, does anyone else think the traction control interferes too much in MDM? I mean I guess it's because I'm not really ever flooring it since it's not broken in, but is it a straight line vs turning thing or what? Seems like any wheel spin with any amount of turn in and it cuts power to keep me from losing control. I'd like to be a little more in charge of keeping control of the vehicle, even if not quite "100%" in charge, lol.

[w00tw00t]

Originally Posted by Lups

Yup, always on that mode and the reasons for it were well listed by you.

TC is your best friend lups!

[tooch]

Originally Posted by chiplee

On that note, does anyone else think the traction control interferes too much in MDM? I mean I guess it's because I'm not really ever flooring it since it's not broken in, but is it a straight line vs turning thing or what? Seems like any wheel spin with any amount of turn in and it cuts power to keep me from losing control. I'd like to be a little more in charge of keeping control of the vehicle, even if not quite "100%" in charge, lol.

Its pretty bad still in mdm. I'm looking forward to getting euro mdm coded

[Lups]

Originally Posted by w00tw00t

TC is your best friend lups!

But how can I leave a corner sideways then? I'd say tc is the tire dealers and my worst enemy. I probably have the most miles on the clock just because of wheels spin with no movement.

You've been in my car, you know I'm hopeless.

Get back home and lets hear the mods V!

[dkhm3]

Originally Posted by chiplee

On that note, does anyone else think the traction control interferes too much in MDM? I mean I guess it's because I'm not really ever flooring it since it's not broken in, but is it a straight line vs turning thing or what? Seems like any wheel spin with any amount of turn in and it cuts power to keep me from losing control. I'd like to be a little more in charge of keeping control of the vehicle, even if not quite "100%" in charge, lol.

wow, i haven't tried mdm and i barely every even get the dsc lit up. can't stretch this car's legs on regular streets.

u live on a track or something ?

[Lups]

Originally Posted by chiplee

On that note, does anyone else think the traction control interferes too much in MDM? I mean I guess it's because I'm not really ever flooring it since it's not broken in, but is it a straight line vs turning thing or what? Seems like any wheel spin with any amount of turn in and it cuts power to keep me from losing control. I'd like to be a little more in charge of keeping control of the vehicle, even if not quite "100%" in charge, lol.

Yes it does. When ever I'm driving alone its completely off. A safety measure in my case, it keeps me on my toes.

[L3x]

There is a difference in throttle responsiveness. But also, in sport plus the turbo's are being spooled up more. Which should result in noticing even lees turbo lag as in just sport setting.

[mkoesel]

This information can be found by reading the FAQ sticky at the top of the forum.

http://f80.bimmerpost.com/forums/sho...d.php?t=975864

So what are the differences between the EFFICIENT, SPORT and SPORT PLUS modes?

In the SPORT and SPORT PLUS modes, the waste gates remain closed under partial load and the mass flow is routed through the turbines, to ensure that the turbo chargers are already rotating at a higher base speed even in standby. Moreover, certain special engine control functions are brought into play that accelerate activation of the turbo chargers. This means that the car responds more closely to the accelerator in SPORT and SPORT PLUS modes.

Another important point is that we normally have to take the drive train into consideration when it comes to building up torque. As a rule, the engine is able to build up torque at a speed that is much faster than that with which the drive train can cope. You can imagine that the drive train then begins to behave like a torsion spring, which is first stretched out and then vibrates, resulting in juddering. To prevent such judders, it is necessary to dampen the engine's build up of momentum to allow a harmonic progression of its response characteristics.

The rigid drive train of the new BMW M3 and BMW M4 is, however, optimised for a fast build-up of momentum, similar to a racing car, with a carbon fibre drive shaft, rear axle rigidly bolted to the body, suitably dimensioned drive shafts, etc. This means that the rigid drive train is also an important factor of the spontaneous entrance of the new BMW M3 and BMW M4. In EFFICIENT mode, everything is more levelled out, with a high orientation towards comfort. In stark contrast is the SPORT PLUS mode, which pays absolutely no attention to any comfort factors. In SPORT PLUS, all filter functions are deactivated and the engine responds directly to movements of the accelerator pedal – but this also requires someone behind the wheel who really knows what he is doing. In SPORT PLUS, everything is transmitted as sharply as a knife, in terms of what the engineering can do to facilitate fast lap times – whether in the engine, transmission, chassis or control systems.