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Flash Settings 7-Speed DCT

xHP features a “Customization Module”, which allows users to change certain has “Flash Settings”, allowing the user to change specific settings before flashing an OTS or Custom - Map. The Module This injects those these user-defined values into every Map before flash. Usage each map before it is flashed.

Use is simple: Just do your settings, save them and

  • adjust the desired settings

  • save the settings

  • flash any map to apply

them
  • the settings.

The 7-Speed speed is a very different transmission, compared gearbox to the 6 six and 8eight-Speed speed units of ZF. Its manufactured Manufactured by Getrag and basically , it consists of two parallel manual transmissions in parallelgearboxes, each with one a clutch each. A Gear Change gear change is done made by pre-selecting the Target Gear target gear in the adjacent Transmission transmission and then opening/closing both clutches at the same time. While As one clutch opens, the other one the other closes at the same time and therefore enables , allowing the transmission to carry out “seamless” shiftsmake "seamless" shifts. BMW used has been using it for around 10 about ten years, mostly in M -Cars cars and some of the sportier AG Carscars, like such as the 335is E92 and Z4 sDrive 35i. While its raw up-shift upshift performance is unparalleled, it has its drawbacks regarding daily in everyday driving , compared to the 6 six and 8-Speed Torque Converter eight-speed torque converter transmissions.

For instanceexample, spontaneous downshifts over multiple gears in a cruising situation multi-speed downshifts at cruising speeds are much quicker on with the 6HP and 8HP, and also maneuvering manoeuvring in tight spaces is also much easier with the ZF units. Last but not least, the DCT is much harder to adapt to different power levels and requires more setup set-up work , when mated to different engines.

You must flash your vehicle car after changing settings. Just being Being connected to the car is car is not enough.
You can access the Module through the module via the “edit” button. right next to “Flash Settings” button at the bottom of the Map-Flash Screen.

Please note , that the Module module is not available for all vehicles and /or engine/transmission combinations.

Launch Control RPM

With this setting you can adjust the RPM the DCT transmission targets when engaging Launch Control. On the “non-M” cars this is a fixed value, while on M-Cars the driver can use the Cruise-Control buttons to adjust it up/down while Launch Control is in waiting mode. xHP offers to change the initial Launch RPM, as well as the min. and max. values which it can be adjusted to while in car. The stock values are setup

gearbox combinations.

Info

Due to the different generations of transmission controllers used by BMW during production, some cars may not support all existing custom features.

To see what Flash settings your specific car can support, connect the app to your car and click on it. Then click on “FLASH THIS CAR” and then on “Edit” right next to “Flash Settings”.

This can be done without purchasing a licence.




Launch & Performance Options




Kickdown – Launch

For E-Series - 135i / 335i / Z4

You can choose between a performance-oriented take-off behaviour at full throttle (including Kickdown) or a burnout mode.

  • Burnout mode - The clutch is applied very aggressively to spin the rear wheels immediately.

  • Performance Mode - the clutch is applied gradually to build up traction.
    In both modes, you can select the rpm at which the clutch engages.

For F-Series - M-Cars

The DCT has two modes of full throttle/kickdown clutch engagement at a standstill, based on the current state of the DSC (stability control). The standard setting on all F8x M-Cars is as follows:

  • DSC ON - The clutch engages gradually at around 1000 rpm.

  • DSC OFF - The clutch engages at around 2800 rpm. Depending on your setup and available traction, you may want to change the RPM at which the clutch begins to engage in each of the modes. For example, higher traction (sticky track, slicks) means that higher revs are possible/necessary before braking traction. Also, cars with upgraded turbos may benefit from increasing the RPM at which the clutch engages.

These launch modes are NOT related to launch control, which can be set in the Launch Control panel in xHP.

General

Note

If you have used tools such as MHD/bootmod3/MG-Flasher to disable Kickdown, these modes (and Launch Control) will no longer work. Kickdown must be turned on in the DME.

This feature can only be used with our OTS maps. It does not affect the behaviour on the stock map! To use this function, please set DSC completely OFF, otherwise, the traction control will be activated.

Info

Kickdown Launch is activated when the DSC is turned OFF and the car is not using Launch Control, so you can use Burnout Mode on the drag strip to heat the tyres and then activate Launch Control, for example.




Launch Control Setup

xHP allows you to configure the launch control function of your DCT fully. xHP allows you to change the launch speed, as well as advanced settings to control engine torque and allow slip during acceleration. The standard values are set for a stock car. Especially for heavily modded modified cars with sticky tirestyres, big turbos, etc. those , these values need to be adjusted upwardsup/downwards down for optimal acceleration.

Torque Punch

The DCT trans has quite beefy, oil-cooled clutches, which are able to withstand a lot of abuse. The F8x M-Cars do create a significant kick in the back on each upshift in the faster shift modes. So huge, that it can offset the cars balance quite significantly. With this option users can configure the amount of torque that is added on each shift in “Sport/Sport+” and “DSC OFF” mode (AG Cars) and S2/S3/M2/M3/DSC OFF (M-Cars) respectively. Please note that in general on all our OTS Maps the fastest shift-mode is only active in DSC OFF. With DSC turned ON your car may cut power from the small wheel-spin created on upshift. This custom option interacts directly with option “Torque Reduction”.

Torque Reduction

During each shift the transmissions orders the engine to cut power, while the transmission is pulling down to the Target-RPM for the next gear. The amount of torque reduction has to correlate with the clutch timing and torque at the clutches to create a quick, consistent and reliable shift, within the clutch specifications. On high power cars, the DCT often suffers from “spongy” and delayed shifts, which are a direct effect of de-calibrated torque models inside the DME and unadjusted transmission mapping. The DCT is very picky and not that flexible in terms of self-adjustment and may need further adjustment through options “Torque Punch” and “Torque Reduction”, depending on your engine mods. If your Tuner asks how to “adjust for xHP”, just tell him to leave the Load-2-Torque Calculation as close to real-world as possible.

Setup hints: A proper shift needs things to be in balance. Just lowering down torque reduction as much as possible is not a general recipe. If you feel the infamous “spongy” shifts, try to raise torque reduction (pull more torque during shift) and raise Torque Punch at the same time. Do this gradually, as when overdone you get the opposite effect. Please do not ask us “what is the best setting”. If there was one, we would have done the OTS Maps already that way.

Use Stock Shiftmaps

Our OTS Maps often sport adjusted Shift-Points in the various modes. If you do like the stock Shift- Points better, just activate this option.

Max. RPM

The AG-Cars (335i, Z4) have different Target-RPMs for D, S and M-Mode when applying full throttle. Instead of shifting at a certain vehicle speed, the transmission shifts at a fixed RPM per gear. With this option you can adjust that RPM target for each mode and each gear. Please note, that the transmission adds some pre-calculation, so it still may shift a bit earlier, then setup in this panel. For instance, when wheel-spin occurs, or you accelerate down a hill. M-Cars only have one automatic mode and therefore only a setting for D-Mode. (Called S in M-cars)

Rear-Axle Ratio

Gear-Change and Throttle-Blip calculation of the DCT needs to precisly know all Ratios in the Driveline. If they are not setup correctly, all target RPM calculations are offsetted, which leads to spongy shifting and incorrect blipping on downshifts. Adjust this option ONLY if you have fitted a different Rear- Differential. NEVER change this on a stock vehicle.

Shift map Editor

The shift map editor enables you to change all shift points in D and S mode to your personal likings. A shift map consists of 10 lines, which are spread over throttle input. Five for upshifting

Info

Non-M cars (335i, Z4 etc.) use a simpler form of launch control. These cars can only adjust the launch RPM. Controlling engine torque and slip values through the DCT is not possible on these cars as they use the normal DTC function to control launch instead.
(which is in your car's stability control, not the DCT).

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  • Min: The minimum engine speed (RPM)can be adjusted in the car using the cruise control up/down buttons.

  • Base: The initial RPM that Launch Control targets when activated.

  • Max: The maximum RPM can be adjusted in the car using the cruise control up/down buttons.

  • Desired Slip at Rear Wheels (DS): In a nutshell, this slider makes the wheels spin more or less during the launch. Move it to the right for more wheel spin, and move it to the left for less wheel spin. The desired slip is the main variable used by the Launch Control to regulate engine and clutch torque during launch.
    The DCT calculates the actual slip during launch by reading the front/rear wheel speed sensors around 30 times per second and adjusts the engine torque and clutch slip to achieve the pre-programmed values. The optimum slip depends on many factors, such as climate, tyres, road surface, suspension setup, etc.
    BMW has set this for a standard car on an "average" road surface. As a rule of thumb, on wet roads or in cold climates (winter), lowering the slip values will probably give you better times.
    On the other hand, on grippy surfaces (e.g. drag strip or new country road) and tyres, higher slip values can generate more traction.

  • Torque Initial Slip-Phase (TI): This slider adjusts the initial torque when the LC releases the clutch. It affects how aggressively the clutch is released and how much boost your engine will target in the first few moments. This phase is crucial for a good start as it loads the drivetrain, sets the car's springs and gets the tyres spinning. Immediately afterwards, the LC will start to regulate based on the "desired slip". Too much torque will just burn rubber, and the LC will have to adjust downwards a lot in the first ~1.5 seconds. Too little will result in a weak launch.

  • Torque after Slip-Phase (TAS): This setting adjusts the second part of the launch approximately 1.5 - 2.5 seconds after starting when the second gear is engaged. Shifting from 1st to 2nd can make the car unstable. Too much torque will cause the wheels to spin immediately on a 1-2 shift (which the LC will then have to counteract based on the "Desired Slip"), and too little will waste time on pulling into 2nd gear as the engine may not be targeting full boost instantaneously, even if the traction is there to put all the power to the ground.

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Setup hint:
Make sensible changes in small steps. "Maxxing it all out" is not the way to go. (unless you are deliberately trying to burn rubber). If you are at the drag strip on a warm day, start with a 15% increase for DS and about 7% for TI. The TI slider usually needs a very little adjustment.

The TAS can be adjusted with bolder increments, as the car is already loaded when this setting kicks in and will produce similar traction within a wider slip window. Be prepared for wheel slip and the car going sideways as you lift.

The typical FBO car with Stage 2 engine mapping should be fine with the settings stored in our OTS maps. Depending on the traction available, it may even benefit from a few ticks to the left on the TAS slider.

Lowering your M-Car to the max and running 21" tyres may look cool, but the traction will be terrible. So lowering all sliders by a few per cent will probably give you better times.

Please don't ask us what the "optimum" settings are. If there was an optimal setting, it would already be programmed into the OTS map. If you want better times, you have to change, measure, change, measure and so on.

Of course, Launch Control will put a lot of stress on your clutches through launch. Running Launch Control 50 times comes with a price tag, whether you change the values or not.

The DCT Launch Control can only be used if all of the following conditions are met

  • 1000m have been travelled since the last Launch Control start.

  • 60 seconds have elapsed since the last Launch Control start.

  • there is no trailer attached to the car (yes, this will be checked)

  • the parking brake (E-brake) is not applied

  • The transmission is not in hot mode: yellow or red

The procedure for activating Launch Control is the same as for stock cars.




Take Off in 2nd Gear as Standard

This option allows you to choose whether the transmission uses first or second gear for starting from a standstill. This function is not active in the following situations:

  • Only active with D-DriveLogic 1

  • The transmission immediately returns to 1st gear when kickdown is activated (emergency function).

  • During a cold start with some cars

  • On steep roads

  • When the transmission is overheated



Comfort & Economy Options



Configure Creep

Select whether your car starts to move/crawl when the brake is released or only when the accelerator is touched.
Default means that the flashed file will not be modified.
Enable makes the car creep when the brake is released.
Disable makes the car move only when the throttle is applied.





Stop-Go

When a traffic jam is detected, the Stop-Go function keeps the transmission in 2nd gear. It's a convenient function to avoid constant shifting between 1st and 2nd gear in stop-go situations. The user can choose whether to enable or disable this function.

Info

Stop-Go: OFF ignores the traffic jam detection and lets the transmission shift between the 1st and 2nd gear.

Stop-Go: ON does not mean that the transmission always uses 2nd gear when the car is stationary. This is only the case when the car detects a traffic jam-like driving situation. If you want to use 2nd gear as standard for moving off, use the appropriate Flash setting.



Shifting



Shiftmap Editor with Presets

The Shift Map Editor allows you to change all shift points in D- and S-mode to suit your personal preferences. For example, you can make your car shift later from 1st to 2nd gear when accelerating, or vice versa. Or keep the car in 7th gear longer when accelerating on the motorway. For an easy start, xHP offers four presets: Relaxed, Relaxed+, Sport and Sport+.

These presets make it easy to do a quick test on your car and experience the changes. Select a preset and flash any map again. xHP will automatically apply the presets to your shift map during the flash. Presets work with your stock calibration, with all OTS maps and with custom files flashed.

Relaxed and Relaxed+: Your car shifts up earlier and is less eager to downshift when you press the accelerator.

Sport and Sport+: Your car shifts up later and stays in lower gears longer. It will also respond more quickly to throttle inputs and be more willing to shift down.

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Shiftmap Editor: Editing Presets

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For further customisation, you can also edit any of the presets and save your changes in up to three custom slots. Select a preset from the drop-down list and click the toolbox icon next to it. This will load the preset into the editor and reveal its saved settings. You can now edit each individual up- and downshift and then save your changes to one of the three custom slots.

The Presets themselves remain untouched, so you can always return to them. Your Custom Slots are also exported when you use the Import/Export feature, so you can easily share them with other users!

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Shiftmap Editor: Setup hints

The Shift Map Editor allows you to change all shift points in D- and S-mode to suit your personal preferences. A "shift map" consists of 12 lines spread across the throttle input.
Six for upshifts (1-2-3-4-5-6-7) and

five

six for

downshifting.

downshifts (7-6-5-4-3-2-1)

Up-

. The upshifts and downshifts can be configured independently

configured

. The

setting

settings made in the editor are always relative to the flashed map. You do not set exact shift points, but

rather are able to

you can change the shifting of a given OTS or custom map! The

spread

range is from +50% to -50% for each shift.

For example, if

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Example:

If your 5-6 shift

on low loads

normally occurs at 50 mph under light load, but you want it

not

to

happen before

occur at
55 mph,

pull

move the 5->6 slider to +10%.

Same

The same goes for

the

downshifts. If your

trans

gearbox normally downshifts

on

at 40 mph from 6->5

during

when coasting, but you want

that

it to happen at 50 mph, pull the slider for 6->5 up to +25%.

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Be Make sure to you make sensible changes. If you alter the change 1-2 shift upwardsup, you should do the same gradually to with the subsequent shifts , to get a “natural” 'natural' shift - feel during while driving. Rule A good rule of thumb is to make bigger larger changes on in the lower gears , and smaller changes on in the upper higher gears.

However, you are free to experiment with these settings. xHP pre-calculates and validates all changes against every each OTS Map map stored on the deviceunit. A fixed ruleset gets set of rules is applied to auto- correct "'wrong" ' settings and prevent dead-locksdeadlocks automatically. Such a dead-lock deadlock could happen occur if your 2-3 upshift - point would be was set below the 3-2 downshift - point , or if an upshift would lead to resulted in a target RPM below engine idle- speed of the engine.

Below is an example of how to turn the standard Stage - 3 Map map of a 335i in D-Mode mode can be turned into a very comfortably comfortable and low-shifting Mapmap:

UPSHIFTS

  • 1->2: - 24%

  • 2->3: - 20%

  • 3->4: - 16%

  • 4->5: - 12%

  • 5->6: - 8%

  • 6->7: - 4%

DOWNSHIFTS

  • 2->1: 0% 

  • 3->2: 0% 

  • 4->3: - 2% 

  • 5->4: - 2% 

  • 6->5: - 2%

  • 7->6: - 2%

This is just an example, but users are encouraged to experiment and find their own personal best shift map. The Shift point Shiftmap Editor lets you change the character of a given map very much , by just pulling a few sliders.

Enable/Disable Creep

Choose whether your vehicle starts moving/creeping by just releasing the brake, or only when touching the throttle. “Standard” means the flashed file will not get changed. “Enable” let’s the car creep when releasing the brake, “Disable” means the vehicle will only move, when throttle is applied.

Kickdown – Launch

You can select whether to use a performance-oriented take-off behavior when going full-throttle (incl. Kickdown) or if "Burnout-Mode" shall be activated. In Burnout-Mode the clutch will kick in very aggressively, to immediately spin the rear-wheels. In Performance-Mode the clutch will be applied gradually to build traction. In both modes you can choose the RPM, where the clutch gets engaged. NOTE: This function can only be applied together with our OTS Maps. It will not affect behavior on the Stock-Map! To use this function, please set DSC fully OFF, otherwise the Traction Control will kick in.

Take Off in 2nd Gear as Standard

This option lets you choose, wether the transmission uses first or second gear for take off from standstill. This function is not active in the following situations:

  • Only active in D-DriveLogic 1

  • The transmission will revert immediately to 1st gear when activating Kickdown (Emergency Function)

  • During cold start on some vehicles

  • On inclines

  • When transmission is overheated

Valet-Mode

•limits your vehicles power to approx. 100 HP in lower gears, 130 HP in higher gears

•limits max. RPM to 2500-3000 approx.(depending on vehicle)

•disables Kickdown

•inhibits too early downshifting in Manual mode (max. 2500 RPM)

•locks down the transmission in its slowest operating mode

•inhibits Launch Control/Brake-Boosting.

Safely lend your high-power vehicle to your kids or make sure the shop mechanic does not show-off with your car to his buddies. Valet-Mode can be applied to any map and works safely in all driving environments




Use Stock Shiftmaps

This option will always keep the stock shift points, no matter which maps you flash.
With this feature enabled, changes in the Shiftmap Editor will be relative to the stock shift maps, not the shift maps of any OTS map you may have flashed!




Torque Reduction during upshift

During each shift, the transmission instructs the engine to reduce power as the transmission pulls down to the target RPM for the next gear. The amount of torque reduction must correlate with the clutch timing and torque at the clutches to produce a quick, consistent and reliable shift within the clutch specifications.

In high-performance cars, the DCT often suffers from “spongy” and delayed shifts as a direct result of de-calibrated torque models in the DME and unadjusted transmission mapping.
The DCT is very picky and not very flexible in terms of self-adjustment and may need further adjustment via the Torque Punch and Torque Reduction options, depending on your engine mods.
If your tuner asks how to "adjust for xHP", tell them to keep the load-2-torque calculation as close to reality as possible.

Slider to the right means "more reduction" → the gearbox will drop more torque when shifting.

Slider to the left means "less reduction" → the gearbox will drop less torque during a shift.

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Setup hint:
A good shift needs to be balanced. Simply turning down the torque reduction as much as possible is not a general recipe. If you are experiencing the infamous "spongy" shifts, try increasing the torque reduction (pulling more torque during the shift) and increasing the Torque Punch at the same time. Do this gradually, as overdoing it will have the opposite effect. Please do not ask us "what is the best setting". If there was one, we would have made the OTS maps that way already.




Torque Punch

This option allows the user to configure the amount of torque that is added on each shift in Sport/Sport+ and DSC OFF modes (AG cars) and S2/S3/M2/M3/DSC OFF (M cars).

During an upshift, the transmission sends a request to the engine to reduce power briefly to ease the shift. The time frame for this is about 100 - 200 msec. Depending on the amount of torque drawn during this short period, the transmission calculates the pressure required by the clutches to complete the shift. The Torque Punch setting allows you to add a factor to this calculated pressure to create a more aggressive (or tame) shift.
The punch can be felt in the car as a slight forward pull during the shift.

Slider to the right means a harder shift!

Slider to the left means a softer shift!

This custom option interacts directly with the “Torque Reduction” option. (see above)





True Manual

True manual means that when you’re in manual mode, the car won’t upshift by itself when the engine reaches the redline.
Instead, it will bounce off the rev limiter, just like a car with a manual transmission.

The rev limiter will still protect the engine from over-revving. Usually, this behaviour is desired for drifting or track racing.
Depending on your car, this panel allows you to activate/deactivate True Manual for certain modes or switch it on/off generally.

Info

This is only available for M cars with DCT.

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Driving



Kickdown

Allows the user to enable/disable the use of the kick-down switch.
There are two settings: Enabled and Disabled, which override the default settings in the map.

Kickdown Disabled does NOT mean that the car won't downshift, but the extra downshift initiated through Kickdown will be suppressed.

Note

Please note that all functions related to Kickdown will be disabled as well, e.g. Launch Control, Max Performance Mode etc.




Limiters




Valet-Mode

Lend your high-performance vehicle to your children safely, or make sure the garage mechanic does not show off your car to his mates. Valet Mode can be applied to any map and works safely in all driving environments.

  • Limits your vehicle's power to approximately 100 hp in lower gears and 130 hp in higher gears.

  • Limits max. RPM to approx. 2500-3000 (depending on vehicle)

  • Disables kick down

  • Prevents premature downshifting in manual mode (max. 2500 rpm)

  • Locks the transmission in its slowest operating mode

  • Disables launch control





Max. RPM

The AG cars (335i, Z4) have different target revs for D-, S- and M-modes at full throttle. Instead of shifting at a specific vehicle speed, the transmission shifts at a fixed rpm for each gear. This option allows you to set this target RPM for each mode and gear. Note that the transmission does some pre-calculation, so it may shift a little earlier than set in this panel, for example, when wheel spin occurs or when accelerating down a hill.

M cars only have one automatic mode and, therefore, only one setting for D mode. (Called S in M cars)




Miscellaneous




Rear-Axle Ratio

The DCT's shift and throttle blip calculations need to know all the ratios in the drivetrain. If they are not set correctly, all the target RPM calculations will be off, resulting in spongy shifts and incorrect blips on downshifts.

Note

Adjust this option ONLY if you have fitted a different rear differential.
NEVER change this on a stock car.


Back to the Overview Page.