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M2 Technical Topics > N55 Engine / Drivetrain / Exhaust / Bolt-ons / Tuning > F8x CS DCT coding - who's had their cars flashed and how was it ?

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      06-25-2018, 12:32 PM   #1
Bee Pee
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Thinking about m4GTS DCT coding as, despite weird shift behaviour in slush mode, clamping pressure of dual clutches is increased by 10-15% - which is a good thing if upping the ante in terms of remapping etc as DME output responses rely mainly on load controlled inputs.

However, keen to hear from folks who may have had F8X CS DCT flash instead wrt shift behaviour etc....
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      06-25-2018, 11:28 PM   #2
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I don't know if it's just me, but it feels a bit slower on the downshifts, at least when going WOT from 7th. On certain turns at the track it seems sluggish around 2-3, usually at that point I'd have to manually shift just to stay within an optimal power band.


Whether or not this is due to the larger density core I'm running, thus taking a bit longer to supply the boost pressure needed, I don't know, but for what it's worth, I liked the GTS flash for certain aspects.

Prior to that, on a long straight away, the upshifts would give me the jerk reaction, but the GTS transmission smoothes the shifts way more. Makes it more controllable on the track.
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      06-26-2018, 08:29 AM   #3
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Yea so far I've heard more negatives with the GTS DCt tune vs positives. Reason why I haven't tuned mine yet.
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      06-29-2018, 01:55 AM   #4
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CS should be a good compromise between ZCP and GTS

Feel free to PM if anyone needs to do this remotely.
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      06-29-2018, 04:09 AM   #5
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Quote:
Originally Posted by cookiesowns View Post
CS should be a good compromise between ZCP and GTS

Feel free to PM if anyone needs to do this remotely.
I didn't hear anyone flashed ZCP or CS gearbox to M2.

With GTS software, I think upshift is ok. But it's just way too lazy to downshift. You have to aggressively apply throttle for downshift, making a much less responsive car.
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      06-29-2018, 06:48 AM   #6
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Quote:
Originally Posted by SeanWRT View Post
I didn't hear anyone flashed ZCP or CS gearbox to M2.

With GTS software, I think upshift is ok. But it's just way too lazy to downshift. You have to aggressively apply throttle for downshift, making a much less responsive car.
Sean,

thanks for feedback - is lazy downshift in auto mode or even in manual mode too ?

Might wait for M2Comp DCT SW although "F87CS" is showing in ISTA+

BP
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      06-29-2018, 07:26 AM   #7
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Quote:
Originally Posted by Bee Pee View Post
Quote:
Originally Posted by SeanWRT View Post
I didn't hear anyone flashed ZCP or CS gearbox to M2.

With GTS software, I think upshift is ok. But it's just way too lazy to downshift. You have to aggressively apply throttle for downshift, making a much less responsive car.
Sean,

thanks for feedback - is lazy downshift in auto mode or even in manual mode too ?

Might wait for M2Comp DCT SW although "F87CS" is showing in ISTA+

BP
Shifting strategy is all about auto mode. In manual mode, driver gets to shift itself.
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      06-29-2018, 02:55 PM   #8
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Quote:
Originally Posted by Bee Pee View Post
Sean,

thanks for feedback - is lazy downshift in auto mode or even in manual mode too ?

Might wait for M2Comp DCT SW although "F87CS" is showing in ISTA+

BP
I want to figure out if there is a way to retrofit the buttons other M cars have to set the shift speed as you please instead of having to deal with the modes. Seems like it would be possible somehow.
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      06-29-2018, 04:29 PM   #9
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Quote:
Originally Posted by akkando View Post
Quote:
Originally Posted by Bee Pee View Post
Sean,

thanks for feedback - is lazy downshift in auto mode or even in manual mode too ?

Might wait for M2Comp DCT SW although "F87CS" is showing in ISTA+

BP
I want to figure out if there is a way to retrofit the buttons other M cars have to set the shift speed as you please instead of having to deal with the modes. Seems like it would be possible somehow.
I am very attracted too, I have take the wiring schema, the problem is that kombi must be changed
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      06-29-2018, 06:52 PM   #10
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Quote:
Originally Posted by beppeM3+123d View Post
Quote:
Originally Posted by akkando View Post
Quote:
Originally Posted by Bee Pee View Post
Sean,

thanks for feedback - is lazy downshift in auto mode or even in manual mode too ?

Might wait for M2Comp DCT SW although "F87CS" is showing in ISTA+

BP
I want to figure out if there is a way to retrofit the buttons other M cars have to set the shift speed as you please instead of having to deal with the modes. Seems like it would be possible somehow.
I am very attracted too, I have take the wiring schema, the problem is that kombi must be changed
The instrument cluster would need to change?
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      06-30-2018, 02:40 AM   #11
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Quote:
Originally Posted by akkando View Post
Quote:
Originally Posted by beppeM3+123d View Post
Quote:
Originally Posted by akkando View Post
Quote:
Originally Posted by Bee Pee View Post
Sean,

thanks for feedback - is lazy downshift in auto mode or even in manual mode too ?

Might wait for M2Comp DCT SW although "F87CS" is showing in ISTA+

BP
I want to figure out if there is a way to retrofit the buttons other M cars have to set the shift speed as you please instead of having to deal with the modes. Seems like it would be possible somehow.
I am very attracted too, I have take the wiring schema, the problem is that kombi must be changed
The instrument cluster would need to change?
I take a look at m2c and kombi have the same info of m4 m3 i don't think that flashing the pre lci kombi will be possible, maybe with lci.
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      11-09-2019, 01:05 AM   #12
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Has anyone flashed the GTS/CS TCU tune using MHD and can report back? Iíve got MHD Stage 2+ (98RON) tune installed with cold start removed.
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      Yesterday, 05:53 PM   #13
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Does not work correctly in our cars. Only works when paddle shifting. In regular D mode it is stuck in ECO. S and S+ don't work.
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