Wow. That sucks. Looks like you went from auto shifting to permanent manual mode!
Have you reached out to XHP?
XHP DCT - Experience Thread
- Thread starter JohnDaviz
- Start date
Have you reached out to XHP?
I sent them an email couple of weeks back asking about the same, this is what they replied:
"quote"
thats correct. You can fit the M3 diff and then change the ratio in the app and you will be fine again
Yes and then you have to reflash the OTS Map with the custom settings applied
"un-quote"
In all of my experimenting I have never experienced this, although I'm only at 26psi to 5000 rpm, down to about 22psi at 6000 rpm. However, I do know the TCU is extremely fidigity if you aren't reporting the correct torque values, even if you use the corrections given in the xHP software.
Just today I experienced some weird shift. During a pull I shifted early at ~5.8k RPM and it did not want to shift for a fraction of a second and then shifted and it felt like power was gone.
Log shows that DME requested a Lower Boost Target during this event and activated Tq Limiter 4 and after that 1. I don´t know what happened.
As far as I can tell it does that when not enough torque is pulled prior during the gear shift, and the rpms between the box and the engine is not accurately enough aligned, so then throttle is properly pulled (if you add throttle to the graph) to match speeds, and this all leads to a very slow gear shift. To avoid this, you have to get the DME reporting the correct torque to the TCU. It's the only way I got it right, the sliders provided by xHP didn't help me.
Thank you for confirming my suspicion. I already prepared an xhp flash with increased torque reduction.
I was just going to flash Stage 2 because of the aggressive downshifts but I will try the new 1.2 version now. Will report back after a few days.
I am excited to see improvements in xHP... Still blowing my mind that we can tweak the behaviors in the DCT now.
Still wish I could use it on my M3 swapped DCT... hoping someday.
Still wish I could use it on my M3 swapped DCT... hoping someday.
I would be more excited if the improvements actually would be optional in the flash settings. And also less the attitude when somebody actually gives critics and the answer is "it is supposed to be that way".
And sadly Stage 2 Features then again don´t have features I absolutely want. So I can actually only use V1.0 yet.. But I really pray that V1.2 will let me see some real improvements.
Some just don´t want ricer boy car feeling when using the car as a daily and get the feeling of a race car when braking towards a red light. These downshifts may be cool during racing but in D when driving absolutely normal?... Meh..
Bummer, @JohnDaviz ... It is great that you are trying to improve the situation and trying to provide feedback. That is admirable.
My M3 rear end swap has been amazing for responsive DCT behavior. The only thing 'irritating me' is the behavior from stop (sudden surge of power instead of forward momentum), but the throttle sensitivity tables seem to be my fix.
I keep watching xHP in hopes to get closer to the full M3 swap so that I can recommend others do that INSTEAD of the hellish work that I did on my car.
My M3 rear end swap has been amazing for responsive DCT behavior. The only thing 'irritating me' is the behavior from stop (sudden surge of power instead of forward momentum), but the throttle sensitivity tables seem to be my fix.
I keep watching xHP in hopes to get closer to the full M3 swap so that I can recommend others do that INSTEAD of the hellish work that I did on my car.
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