[BQTuning]

Originally Posted by Newguy123

Interesting pole 22 out of 51 users have a slipping DCT or have experienced slippage. I wonder how many are stock, tune only and FBO TUNE. Also what tune or piggy you have experienced slippage with

Majority from piggy users

The minority have 0 experience with a DCT and drive it in WOT like they would an AT = Driver ERROR

[Newguy123]

Originally Posted by BuraQ

Majority from piggy users

The minority have 0 experience with a DCT and drive it in WOT like they would an AT = Driver ERROR

Lol every time I let my gf drive the car I put it on map2 and cringe when she doesn't manually drop it down just gets on it while on the fwy or something

[BQTuning]

508 wtq no slippage http://www.e90post.com/forums/showpo...7&postcount=17

My car has been strickly flashed tuned from since it left the factory

[MR RIZK]

Has any owner of a 2012+ 135 DCT tried the TMC AutoFlash from TMC Autosport.

http://www.tmcmotorsport.com/TMCAutoFlash_BMW.aspx

According to the website it has the ability to alter the DME and TCU torque limiters even on the tricore/infineon equipped cars. I did reach out to them and based on the initial conversation it is supported on these dme/tcu.

Not cheap bit if it works it may be an option to alter the torque limits of the DCT to reduce slipping

[BQTuning]

I don tthink I will be adding anymore torque than this.....lol...driving around with this type of torque is not only fun but scary. I'll eb working on bringing the whp up though

[syclone2032]

i think this might be of interest:

N55, DCT, Cobb/ATR, SSP clutches

i lowered the last line ("load 220") of the "Load to Torque Limit" under "Limits Tables" by around 15% and the both clutches started slipping (not when shifting but under WOT between 3800 and 4500rpm) in 4th gear and higher.

reset the table and slipping gone.

so clutch pressure is indeed altered by the DME sending calculated torque to the gearbox.

[BQTuning]

Originally Posted by syclone2032

so clutch pressure is indeed altered by the DME sending calculated torque to the gearbox.

To add all the N54 DCT cars internationally that we have tuned have had 0 slippage and they are ranging from 490 to 560 wtq on stock turbos.

Havent had a chance yet to get hold of a N54 DCT with turbo upgrades for E60 yet where the turque monster manifests itself

[335islover]

Originally Posted by themyst

+1 it's only a matter of time.

[rismo]

40k km FBO tuned + RB + Meth...
No problem... Always driving in sportsmode.

[WedgePerformance]

Originally Posted by syclone2032

i think this might be of interest:

N55, DCT, Cobb/ATR, SSP clutches

i lowered the last line ("load 220") of the "Load to Torque Limit" under "Limits Tables" by around 15% and the both clutches started slipping (not when shifting but under WOT between 3800 and 4500rpm) in 4th gear and higher.

reset the table and slipping gone.

so clutch pressure is indeed altered by the DME sending calculated torque to the gearbox.

AT cars have the same issue. My current tune is making 550+ rwtq. I made a few changes to help onset and post shift timing which ended up lowering my torque output into the 600's. My transmission didn't like it one bit. So I increased my output torque and all is good.

I'm not saying people can't get by with using a piggy. On MT cars it doesn't matter, but AT and DCT cars you need to know where you are with load to torque and ensure you are calculating a high enough value to keep your transmission happy without hitting a torque limiter.

[SJL Custom]

Originally Posted by syclone2032

i think this might be of interest:

N55, DCT, Cobb/ATR, SSP clutches

i lowered the last line ("load 220") of the "Load to Torque Limit" under "Limits Tables" by around 15% and the both clutches started slipping (not when shifting but under WOT between 3800 and 4500rpm) in 4th gear and higher.

reset the table and slipping gone.

so clutch pressure is indeed altered by the DME sending calculated torque to the gearbox.

How have the SSP clutches been working for you?

[syclone2032]

Originally Posted by SJL Custom

How have the SSP clutches been working for you?

with the SSP clutches, shifting and driveability improved very much, the tranny never felt so smooth ever before, even in "normal" road or city driving.

as for their grip, i think that for my setup/power they may be overkill, and my slipping problem was more related to the tune (i can make these slip too by adjusting certain parameters in the tune, see above), but overall i am still happy with the result and to be on the safe side should i change my setup for more power.

also, their customer service was very good with kris writing me several messages to ask how we were doing with the install (which is straightforward and easy - if you finally have the gearbox out...).

cheers

[hellokitty]

Bump. How is everyone's transmissions holding up?

[sA x sKy]

DCT with stock clutches can hold up to 550ish wtq before slipping. With Dodson clutches it can hold to 700-800ish.

[Redbmwm33]

I was pushing over 550wtq with no slipping

[alpineweissm]

How do these hold up with a few track days per year?

[BQTuning]

Originally Posted by alpineweissm

How do these hold up with a few track days per year?

I ran mine 34 passes on the track, over 200 drag launches within a year. Total launches when owning the vehicle was over 400

This is from the flash only tuning side, not with a piggy. Tolerance and more torque is much more capable with flash only tuning.

[J. Dub]

So for those of us shooting for 600wtq 600whp... Should we avoid the dct and get a steptronic?

[rismo]

DCT holds better. Have been in the position to beat the hell out of both over years. The issue with the AT is that if you heat it once to much, it's over.

My wear went drastic when I did some intensive track days with my AT. I often replace fluids with high quality stuff. No beating before propper warm up etc etc..

DCT is sport mode seems to be holding the best.

[J. Dub]

Originally Posted by rismo

DCT holds better. Have been in the position to beat the hell out of both over years. The issue with the AT is that if you heat it once to much, it's over.

My wear went drastic when I did some intensive track days with my AT. I often replace fluids with high quality stuff. No beating before propper warm up etc etc..

DCT is sport mode seems to be holding the best.

Understood. Dollar for Dollar, those of us looking to get back into an e92, go for the DCT. Noted sir. Thank you