XHP Flashtool - F8X DCT Transmission Tuning Software Tested!

[delz0r]

Anyone tried 1.4 yet?

[hellokitty]

Originally Posted by delz0r

Anyone tried 1.4 yet?

Yes, it works just fine… faster shifts in S1

[Motown65]

Originally Posted by ALCOBENDAS

Waiting news Motown65.. and code 1.4 also.. all changes good for me.. but point 1 and 4 i dont know..

XHP said the following

Hi,
​
This should not change the shift point with LC and the pressure regulation was improved, to ensure optimal torque transfer, with 900NM+ cars, so the clutches can hold the torque better.
​
Best Regards,

[ALCOBENDAS]

Flash yet, only city test.. not different for now..

[TakeOne]

Originally Posted by delz0r

Anyone tried 1.4 yet?

Just flashed v1.4 and went for a quick 20-25 mile cruise… can vouch for tad quicker shifts with DSC active. Pretty subtle but welcome change

[ALCOBENDAS]

Yesterday long test.. perfect.. all ok!

[TopJimmy]

Installed Stage 3 v1.4 yesterday.
No probs...

[CedricB]

Hi guys, searching forums, I realize this one existed already, so I’ll try to summarize my experience and questions here.
I purchased xHP. Flasher configuration, and the additional 3 maps pack for my stock M4 competition DCT 2020, (444HP) and successfully flashed « Stage 3 » V1.4 without any additional « Flash settings ».

I did a dozen drive tests, and this new Stage 3 flash still doesn’t give me the behavior I’m looking for. If anything, in S1 mode, I clearly feel and hear the gearbox being more « Spongy » when manual upshifting with the paddles (i.e. about a half-second transition going from 1 to 2, 2 to 3, etc). I’d like a crisp upshifting, with a distinct ignition cut between gears shift. But mostly, still, it does not provide the instant manual paddle downshift I’m looking for. (i.s. It takes half a second reaction to paddle manual downshift in S1)

In S2, it is not « Spongy » manual paddle upshifting, on the contrary, I get the « Power bump » forward which I do not want at all. The downshifts in S2 are instant-ok, and that’s what I’m looking for, but I had that behavior with the stock TCU software.

I re-flashed with Stage 1, 2 or 3 and added « Torque reduction » in the middle (700) and another try with all the way to the right (1000) with no noticeable changes in behavior (S1 or S2)
I performed yet another flash with « Torque punch » all the way to 1 on the left. Again, no noticeable changes to reach my desired behavior.

Last test (as per XHP support recommendation) : TR 300 / TP #2 / stage 1 map. Still a bump forward in S2 manual upshift (not OK) and instant downshift (OK but nothing new there).

What should I do to get the behavior I want?
Upshifting : not-spongy, crisp, with no power bump, a fast blip-ignition cut upshift
Downshifts : instant rev-match blip downshift,
all in manual paddle activated mode.

I had that exact behavior on my previous 2012 335is DCT (stock TCU firmware in sport mode). Can we replicate that on my M4? Can you please help me?

Thanks.
Cedric.

[brad65ford]

Originally Posted by CedricB

Hi guys, searching forums, I realize this one existed already, so I’ll try to summarize my experience and questions here.
I purchased xHP. Flasher configuration, and the additional 3 maps pack for my stock M4 competition DCT 2020, (444HP) and successfully flashed « Stage 3 » V1.4 without any additional « Flash settings ».

I did a dozen drive tests, and this new Stage 3 flash still doesn’t give me the behavior I’m looking for. If anything, in S1 mode, I clearly feel and hear the gearbox being more « Spongy » when manual upshifting with the paddles (i.e. about a half-second transition going from 1 to 2, 2 to 3, etc). I’d like a crisp upshifting, with a distinct ignition cut between gears shift. But mostly, still, it does not provide the instant manual paddle downshift I’m looking for. (i.s. It takes half a second reaction to paddle manual downshift in S1)

In S2, it is not « Spongy » manual paddle upshifting, on the contrary, I get the « Power bump » forward which I do not want at all. The downshifts in S2 are instant-ok, and that’s what I’m looking for, but I had that behavior with the stock TCU software.

I re-flashed with Stage 1, 2 or 3 and added « Torque reduction » in the middle (700) and another try with all the way to the right (1000) with no noticeable changes in behavior (S1 or S2)
I performed yet another flash with « Torque punch » all the way to 1 on the left. Again, no noticeable changes to reach my desired behavior.

Last test (as per XHP support recommendation) : TR 300 / TP #2 / stage 1 map. Still a bump forward in S2 manual upshift (not OK) and instant downshift (OK but nothing new there).

What should I do to get the behavior I want?
Upshifting : not-spongy, crisp, with no power bump, a fast blip-ignition cut upshift
Downshifts : instant rev-match blip downshift,
all in manual paddle activated mode.

I had that exact behavior on my previous 2012 335is DCT (stock TCU firmware in sport mode). Can we replicate that on my M4? Can you please help me?

Thanks.
Cedric.

damn thats a lot of details! Good though.

Just to see if i understand what I read, you are flashing your tcu and your stock power no tuning?

[blitzyo]

I got XHP to make the shifts a bit faster on track while manually shifting. I feel downshifts are a bit delayed stock.
Flashed stage 3 and a quick test on the street, manually shifting around 4-5k rpm and it feels the same as stock. Gearbox setting at level 3.

Am I doing something wrong? Don't care about the auto shifting features.

[Commanderwiggin]

Originally Posted by CedricB

Hi guys, ...
Thanks.
Cedric.

Hey Cedric,

Try Stage 2 V1.0

Under Options set Shift Points Stock, TP 5, TR400

Give that a go...been running that for over a year and I like it more than Stg.3 and newer modes.

EDIT: TP5 might give you the power bump that you don't like...I like it but w/e leave it alone if you don't want a bump.

[ALCOBENDAS]

More use 1.4 more love...

[E92inSG]

1.4 isn’t available to me. How are you guys flashing 1.4?

[CedricB]

Originally Posted by brad65ford

damn thats a lot of details! Good though.

Just to see if i understand what I read, you are flashing your tcu and your stock power no tuning?

Yep, I’m part of the lucky one with an ECU that is not bench-unlock-able! So stock engine from June 2020 M4 competition.

[CedricB]

Originally Posted by Commanderwiggin

Hey Cedric,

Try Stage 2 V1.0

Under Options set Shift Points Stock, TP 5, TR400

Give that a go...been running that for over a year and I like it more than Stg.3 and newer modes.

EDIT: TP5 might give you the power bump that you don't like...I like it but w/e leave it alone if you don't want a bump.

Interesting idea, I didn’t try yet any previous versions of OTS maps. I’ll give this one a try, but to remove the bump, what TP level would you say ? 1?

[CedricB]

Originally Posted by E92inSG

1.4 isn’t available to me. How are you guys flashing 1.4?

Make sure you update your app, there was an update couple weeks ago I believe. Then re-download the OTS maps package. Flash stage 3, you’ll get multiple version options, the last one 1.4

[CedricB]

Originally Posted by Commanderwiggin

Hey Cedric,

Try Stage 2 V1.0

Under Options set Shift Points Stock, TP 5, TR400

Give that a go...been running that for over a year and I like it more than Stg.3 and newer modes.

EDIT: TP5 might give you the power bump that you don't like...I like it but w/e leave it alone if you don't want a bump.

Thinking about your TR 400, it would be too big for me, because my engine is stock (not like you 700+ HP power hungry tuners )
I understand from XHP support you should use an average of your mid shift point torque and top torque x .66
In my case : 375 + 550 / 2 x .66 = 305 —> I setup TR at 300.

[E92inSG]

Originally Posted by CedricB

Make sure you update your app, there was an update couple weeks ago I believe. Then re-download the OTS maps package. Flash stage 3, you’ll get multiple version options, the last one 1.4

Ah ok. got it now, didn't re-download the OTS maps before.

[CedricB]

By the way, here is the link to the other thread I created a couple weeks ago before finding this one. You should find there a couple interesting nuggets, links and video : https://f80.bimmerpost.com/forums/sh....php?t=1960508

[Commanderwiggin]

Originally Posted by CedricB

Interesting idea, I didn't try yet any previous versions of OTS maps. I'll give this one a try, but to remove the bump, what TP level would you say ? 1?

3 or 4

Also use TR400 like I said.

[Commanderwiggin]

Originally Posted by CedricB

Thinking about your TR 400, it would be too big for me, because my engine is stock (not like you 700+ HP power hungry tuners )
I understand from XHP support you should use an average of your mid shift point torque and top torque x .66
In my case : 375 + 550 / 2 x .66 = 305 —> I setup TR at 300.

Use 400; I have 4 maps and some are scaled similar to stock

[Motown65]

Originally Posted by Commanderwiggin

Use 400; I have 4 maps and some are scaled similar to stock

you talking torque to load scaling?