[ferocity02]

Is there anyway to flash our non-M DCT transmissions to behave more like an M DCT? The behavior I'm interested in is when you release the brake from a stop the car does not roll forward. Rather, it will start to engage the clutch and roll forward when you press the gas. Whereas a non-M DCT will start engaging the clutch and rolling forward once you release the brakes, mimicking an automatic.

[LMB335IS]

Originally Posted by ferocity02

Is there anyway to flash our non-M DCT transmissions to behave more like an M DCT? The behavior I'm interested in is when you release the brake from a stop the car does not roll forward. Rather, it will start to engage the clutch and roll forward when you press the gas. Whereas a non-M DCT will start engaging the clutch and rolling forward once you release the brakes, mimicking an automatic.

Well, yes it's possible but you're probably not going to like what you need to go through to get it, especially with a E8x. You'll need to swap in a M3 GWS and shift boot/knob, drivelogic switch and repin the connectors along with the M3 flash of your choice. I use the M3 GTS flash. It's more difficult for you because at least all the console/shifter pieces are a direct swap on a E9x. You will need to fabricate a bit.

You'll also need to change the final drive ratio to something close to the M3 DCT's 3.15 to work with the software. I used the complete M3 drivetrain with a custom 2.81 gear from a 850i. They both use the 210mm diff so the R & P are interchangable.

[ferocity02]

Originally Posted by LMB335IS

Well, yes it's possible but you're probably not going to like what you need to go through to get it, especially with a E8x. You'll need to swap in a M3 GWS and shift boot/knob, drivelogic switch and repin the connectors along with the M3 flash of your choice. I use the M3 GTS flash. It's more difficult for you because at least all the console/shifter pieces are a direct swap on a E9x. You will need to fabricate a bit.

You'll also need to change the final drive ratio to something close to the M3 DCT's 3.15 to work with the software. I used the complete M3 drivetrain with a custom 2.81 gear from a 850i. They both use the 210mm diff so the R & P are interchangable.

This must be possible via flash only. I understand swapping all of the hardware makes is possible now, but I'm hoping it would be possible soon via flash only. Not sure if anyone is working this...

[Soden82]

Xhp makes it behave like a DCT in an M car with their flash. I believe it's only for the ZF6 or ZF8 speeds though.

[maddmatth]

Originally Posted by ferocity02

This must be possible via flash only. I understand swapping all of the hardware makes is possible now, but I'm hoping it would be possible soon via flash only. Not sure if anyone is working this...

This would require a customized version of the TCU software. Maybe if the XHP team are able to support the DCT transmission some day, we'll have this

[ferocity02]

Originally Posted by maddmatth

This would require a customized version of the TCU software. Maybe if the XHP team are able to support the DCT transmission some day, we'll have this

As far as I know there does not exist any DCT reflash, for M or E-series. I think XHP is only for the 6HP21.