[carl44]

One thing i have noticed is the rev match seems to work better. On my OG it revved to quick and unless you let out the clutch really fast the rpms dropped and it wasn't smooth, basically the timing was off. The M2C feels like it works better. carl

[MR.]

I think that is mainly because the software of the M3/M4 is in there... Gearbox might fit better to that engine.

MR

[eeyang92]

Originally Posted by carl44

One thing i have noticed is the rev match seems to work better. On my OG it revved to quick and unless you let out the clutch really fast the rpms dropped and it wasn't smooth, basically the timing was off. The M2C feels like it works better. carl

On the OG, the rev match speed also depends on the mode the car is in (Comfort vs. sport/+), never felt it was "too fast" though.

[escobar929]

Is there an easy way to turn it off on the M2C?

[MR.]

Originally Posted by escobar929

Is there an easy way to turn it off on the M2C?

Hold and press DSC button...

MR

[aminz]

Originally Posted by MR.

Hold and press DSC button...

MR

or a custom tune.

[ryem3]

Originally Posted by eeyang92

On the OG, the rev match speed also depends on the mode the car is in (Comfort vs. sport/+), never felt it was "too fast" though.

"Too fast" what the heck would that be? Sometimes I wonder...
RPM decay on these cars is so slow it's ridiculous. By the time I've shifted the rpm has barely dropped, resulting in rough shifts. Presume this is better in dct cars. Too fast? Maybe if it had a lightweight flywheel, but that would probably be perfect!

Yeah, obviously the programming is completely different, it's a different motor and transmission.

[BlkSVT]

Originally Posted by ryem3

"Too fast" what the heck would that be? Sometimes I wonder...
RPM decay on these cars is so slow it's ridiculous. By the time I've shifted the rpm has barely dropped, resulting in rough shifts. Presume this is better in dct cars. Too fast? Maybe if it had a lightweight flywheel, but that would probably be perfect!

Yeah, obviously the programming is completely different, it's a different motor and transmission.

That's disappointing to hear...I was hoping the M-division had figured that out. Emissions regs are the one thing killing MTs! It's really tough to tune engines for low emissions with all the transient conditions that the driver has influence over with a manual. Seems like every modern manual drives like it has a 500lb flywheel to keep things from changing too quickly. Drives me frickin nuts...

Any idea if the OTS tunes deal with throttle hang between shifts?

[akkando]

I think on the f80 and f82 sport+ disabled rev match. Is that also true on the m2c with the s55.

[carl44]

Originally Posted by akkando

I think on the f80 and f82 sport+ disabled rev match. Is that also true on the m2c with the s55.

No its the same as the OG . carl

[M-Pilot]

Originally Posted by akkando

I think on the f80 and f82 sport+ disabled rev match. Is that also true on the m2c with the s55.

BMW apparently changed it in the latest software for F80/F82 as well. Several members on the F80 forum reporting that their M3/M4s have rev matching even in Sport+ too (June/July build dates). They say only way to turn it off now is to fully turn off the DSC.

[doug_999]

They changed the motor not the rev match. The fact is, the N55 is a free reving motor and the rev match is intrusive. The S55 is very different and more lethargic down low, so you notice it less.

My 2 cents moving from a M2 where the rev match drove me cray cray to the M3 where it is much more livable.

[chris719]

Originally Posted by doug_999

They changed the motor not the rev match. The fact is, the N55 is a free reving motor and the rev match is intrusive. The S55 is very different and more lethargic down low, so you notice it less.

My 2 cents moving from a M2 where the rev match drove me cray cray to the M3 where it is much more livable.

Different firmware for S55 still, so whether or not it is implemented slightly differently is anyone's guess. Unless you had access to the relevant versions of the source code or disassembled the flashed binary you wouldn't be able to say for sure.

[scflaw]

Maybe it’s the gearbox? Different engine may mean diff gearbox

[doug_999]

Originally Posted by chris719

Different firmware for S55 still, so whether or not it is implemented slightly differently is anyone's guess. Unless you had access to the relevant versions of the source code or disassembled the flashed binary you wouldn't be able to say for sure.

Ya think?

Everything is different silly - probably even the computer that runs the engine and yes, the software not the firmware

[chris719]

Originally Posted by doug_999

Ya think?

Everything is different silly - probably even the computer that runs the engine and yes, the software not the firmware

My only point was it's hard to say it's due to how S55 revs when you don't know what else has changed.

Firmware is software. The DME runs on an MCU, in the industry this is typically called firmware.

[akkando]

Originally Posted by chris719

My only point was it's hard to say it's due to how S55 revs when you don't know what else has changed.

Firmware is software. The DME runs on an MCU, in the industry this is typically called firmware.

I feel like we're splitting hairs here. The engine is different so it has different software.