XHP DCT Flash released

[ghost135i]

So this is looking pretty promising... They are saying things like launch control rpm, torque punch, torque reduction, etc are programmable through the tool. I'm pretty interested in giving this a shot since I'm noticing slightly spongy upshifts with higher power. Anyone have any thoughts?

[dtla1]

Sounds interesting. Although not sure it'll work on the 135i since it's not one of the "sportier AG Cars, like the 335is or z4 sDrive 35i" /s

Definitely interested to hear other's results with this. The only current problem I have with my DCT is an intermittent temperature sensor going haywire.

[ghost135i]

Originally Posted by dtla1

Sounds interesting. Although not sure it'll work on the 135i since it's not one of the "sportier AG Cars, like the 335is or z4 sDrive 35i" /s

Definitely interested to hear other's results with this. The only current problem I have with my DCT is an intermittent temperature sensor going haywire.

Yeah not sure why it says that in their manual, but on their instagram they did say it supports the 135

[houtan]

It works in the 1er. Auto shift at redline is removed. Yessssss.

[zx10guy]

Will this tool allow resetting of the adaptations?

[ferocity02]

Will this make our DCTs behave like an M-DCT?

[ghost135i]

Originally Posted by ferocity02

Will this make our DCTs behave like an M-DCT?

M series DCTs are the exact same, just different flywheels. The only M models I'm aware of that have different TCU tunes are the GTS trim levels.

This probably has the ability to be much more aggressive than that though since so much is now programmable. I'm planning on flashing it on my car after I talk to my tuner about it.

[houtan]

The hw is similar, the sw is different. A simple example is how our car auto shifts at redline. The m cars do not. Xhp removes the auto shift. They are also implementing an option to remove the creep forward when you let off the brake from a stop, which the m cars do not do.

[ferocity02]

Originally Posted by houtan

They are also implementing an option to remove the creep forward when you let off the brake from a stop, which the m cars do not do.

Yes that's how the M-dcts behave they act like a manual but ours act like an auto.

[Gizmo135i]

Just loaded their off the shelf stage 3 dct tune this morning, I’ve only put a few miles on it so far and haven’t really gotten on it yet but Ive already noticed an improvement in overall smoothness.

I should mention that I have a custom wedge MHD tune with ps2. While I am very happy with his tune in comparison with all of the other tunes/jb4 I have tried, the shifting always felt off with part throttle driving. There was a slight hesitation after up shifting that was a little annoying and that hesitation seems to be gone.

I almost always drive in manual mode because I never liked how it shifted in D so I can’t comment on any improvements in auto mode. I’ll update after putting a few more miles on it.

[ghost135i]

Originally Posted by Gizmo135i

Just loaded their off the shelf stage 3 dct tune this morning, I’ve only put a few miles on it so far and haven’t really gotten on it yet but Ive already noticed an improvement in overall smoothness.

I should mention that I have a custom wedge MHD tune with ps2. While I am very happy with his tune in comparison with all of the other tunes/jb4 I have tried, but the shifting always felt off with part throttle driving, there has always been a small one second hesitation after shifting that annoyed me and that seems to be gone.

I almost always drive in manual mode because I never liked how it shifted in D so I can’t comment on any improvements in auto mode. I’ll update after putting a few more miles on it.

Awesome good to hear. I've noticed the same behavior as well. Are you running a LSD by chance? Curious how it will behave with that

[Gizmo135i]

Originally Posted by ghost135i

Awesome good to hear. I've noticed the same behavior as well. Are you running a LSD by chance? Curious how it will behave with that

No lsd in my car but based on what I’ve read you can select a different ratio and that will fix any issues if you have a different gear set.

I think as far as lsd is concerned people have messed with the DSC software to get rid of the e-diff

[ferocity02]

Originally Posted by Gizmo135i

Just loaded their off the shelf stage 3 dct tune this morning, I’ve only put a few miles on it so far and haven’t really gotten on it yet but Ive already noticed an improvement in overall smoothness.

I should mention that I have a custom wedge MHD tune with ps2. While I am very happy with his tune in comparison with all of the other tunes/jb4 I have tried, the shifting always felt off with part throttle driving. There was a slight hesitation after up shifting that was a little annoying and that hesitation seems to be gone.

I almost always drive in manual mode because I never liked how it shifted in D so I can’t comment on any improvements in auto mode. I’ll update after putting a few more miles on it.

Is there an option to stop the car from rolling forward when you let off the brake? Looks like there is but I wonder if it works on 135i.

[houtan]

Originally Posted by ferocity02

Is there an option to stop the car from rolling forward when you let off the brake? Looks like there is but I wonder if it works on 135i.

I believe someone requested it and xhp said they will implement the option.

[ferocity02]

Originally Posted by houtan

I believe someone requested it and xhp said they will implement the option.

It's not an option now? It's in the XHP manual.

[a4nut]

I assume this will eliminate the lurching and overall wonkiness of the stock DCT?! If so, count me in.

[ferocity02]

Just flashed the stage 2 OTS map on my 2013 135is w/ 56k miles. The only option I enabled was to use the stock shift points since I'm not ready to tweak those yes. Overall behavior is not much different than stock. Seems slightly smoother in D. No additional noises/burps on upshifts, I only get these in manual mode on 1-2 and 2-3 shifts. Shift speeds dont seem much different (hard to improve upon on the stock DCT). downshift clunkiness in D coming to a stop seems slightly better. Lag/delay from a stop doesn't seem to have improved.

Flashing was a bit of a pain. Had to restart the car a few times in order for the parking brake error to go away. Also had a mess of codes in the DME that I had to clear with MHD.

Looking forward to disabling the creep and adjusting the D shift points slightly. I'll also try stage 3 in the future.

I'm also confused as to when the options become "active"... the manual reads as if some options are only active when in sport mode with DTC off.

[ghost135i]

Just purchased all the licenses and flashed my car straight to stage 3. Decided to go all the way instead of trying stage 1 or 2 first since I'm pushing pretty a significant amount of torque through the DCT (520 ft/lbs). Wow what a difference... This seems to have corrected gripes I had with the tans even when the car was stock, primarily lower speed/throttle shifts coming to and accelerating from a stop. WOT shifts also feel very firm now. Before the DCT at times would be very spongy, but seemingly normal at other times. It now has a consistent near instant strong upshift on WOT. I'm very pleased with this and can't wait to tweak the map and see what else XHP has up their sleeves.

Originally Posted by ferocity02

Flashing was a bit of a pain. Had to restart the car a few times in order for the parking brake error to go away. Also had a mess of codes in the DME that I had to clear with MHD.

I have to agree with this. Very annoying flashing process. I also had the codes, and upon first startup could not clear them, and also my shifter was completely dead. Restarted the car, shifter was now back, and was able to clear the codes. Upon first drive though, downshifts when in manual mode caused a 3 second rev hang, and then a jolt when the car finally decided to downshift. Pulled into a nearby parking lot, restarted the car, and all was well. Proceeded on a spirited drive with no issues.

After the flash I would recommend starting the car once, turning it off, then ignition on to clear codes, then restart the car another 2 times. It seems that it needs to go through a couple ignition cycles to work out issues, or at least it did in my case.

[ferocity02]

Originally Posted by ghost135i

Just purchased all the licenses and flashed my car straight to stage 3. Decided to go all the way instead of trying stage 1 or 2 first since I'm pushing pretty a significant amount of torque through the DCT (520 ft/lbs). Wow what a difference... This seems to have corrected gripes I had with the tans even when the car was stock, primarily lower speed/throttle shifts coming to and accelerating from a stop. WOT shifts also feel very firm now. Before the DCT at times would be very spongy, but seemingly normal at other times. It now has a consistent near instant strong upshift on WOT. I'm very pleased with this and can't wait to tweak the map and see what else XHP has up their sleeves.

Did you tweak any of the setting or use the stage 3 map without changing anything?

XHP said the no creep option should be available next week.

[ghost135i]

Originally Posted by ferocity02

Did you tweak any of the setting or use the stage 3 map without changing anything?

XHP said the no creep option should be available next week.

I tweaked nothing and just used all the default settings with the stage 3 OTS map. All of the toggle switches are off (default). Only thing I did was re-enable kick down on the MHD side. I previously had this disabled, but read somewhere (either in their manual or instagram) that the tune needs the kickdown enabled to function properly.

Will most likely play around with torque punch, and torque reduction over the next few days and see how those feel.

[ferocity02]

Yeah I noticed lockdown in manual mode was disabled with the stage 2 tune.

Do you have any additional burping sounds on upshifts? Mine does not

[ghost135i]

Originally Posted by ferocity02

Yeah I noticed lockdown in manual mode was disabled with the stage 2 tune.

Do you have any additional burping sounds on upshifts? Mine does not

By lockdown are you referring to the kickdown? I believe this would always be disabled in manual mode even with a stock car.

No additional burbles when upshifting, it's just noticeably firmer when in sport than it was before which is exactly what I was hoping for.