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Table of Contents

Customization Module 6-Speed - Overview

xHP features a “Customization Module”, which allows users to change certain settings before flashing an OTS or Custom - Map. The Module injects those user-defined values into every Map before flash. Usage is simple: Just do your settings, save them and flash any map to apply them.

You must flash your vehicle after changing settings. Just being connected to the car is not enough. You can access the Module through the “Flash Settings”

xHP has a "Customisation Module" which allows the user to change certain settings before flashing an OTS or Custom Map. The module injects these user-defined values into each map before it is flashed.

Use is simple:

  • adjust the desired settings

  • save them

  • flash any map to apply the settings.

You must flash your car after changing settings. Simply being connected to the car is not enough.
You can access the module via the Flash Settings button at the bottom of the Map - Flash Screenscreen.

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

Info

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

To see what your specific car can support, please connect the app to your car and then click on it. Then Click on the blue "flash" icon in the lower bottom right corner , click on the blue “flash” icon and then on the gear symbol.
Now you can see, what icon to see which features your car supports and which, if being greyed out, cannot supportit does not.

This can be done without acquiring purchasing a licenselicence.


Custom Launch Control 6-Speed

Launch Control control on 6-Speed speed cars is done through restricting achieved by limiting the maximum torque allowed during brake boosting boost and in 1st Geargear. For normal Normal RWD cars use 350 ftlbft-lbs/450Nm as a starting point. On
For most AWD cars controlling , torque control is not necessary at all, as they have more than enough traction. If you have traction issues problems in the upper gears as well, use the "TQ Limit limit per Gear" gearpanel to manage them.

Info

As the Custom Launch Control feature is realised by restricting max. achieved by limiting the maximum torque during brake boostingboost, it is always “active” "active" during brake boosting and does not need a boost and requires no special procedure to be activatedactivate.


Drag Race Mode

Drag “Drag Race Mode Mode” is designed to extract squeeze the absolute maximum from out of your transmission and boost improve your 0-60 and 60-120 times! Torque Reduction reduction during shifts is completely disabled, shift pressures are maxed out and clutch protection thresholds are raised so you can put the full power of your engine to the ground , no matter what happens.

Omitting The absence of torque reduction during shifts, will lead to shifting results in better acceleration times. This is especially true on turbo-charged turbocharged cars, as the engine does not need have to cut reduce boost during the overlap phase of the transmission. To match compensate for the additional load on the clutch packs, shifts will be carried out with are made with the maximum possible pressure. Stock The standard safety thresholds for clutch - load are raised increased accordingly.

The 8-Speed speed transmissions employ use a similar logic during in Launch Control operation mode, but Drag Race Mode mode takes this idea even a bit step further. Also Launch Control mode will be is also internally disabled on some cars after a certain counter has been reached. In Drag Race mode will inhibit , the LC counter is disabled and will be is permanently available permanent.

Drag Race Mode will mode is automatically enable activated in Launch Control mode and in Sport+/DSC OFF mode (8-Speedspeed) or in Manual mode (6-Speedspeed). The raised pressures will get noticeable only above approx. increased pressure only becomes noticeable above about 40% throttle. Normal daily driving in Comfort/D is unaffected. However, please keep in mind

Please note that this is a

true

real performance

function

feature and should not be used

permancently

permanently.

Usually

Normally, all of our Stages stages are developed withing within the limits of the transmission , to ensure unaffected longevity and stock-like trouble-free operation.

Drag Mode intentionally deliberately ignores such these limits in favor favour of maximum performance and should therefore only be used in special situations, e.g. competing on the Drag-Stripsuch as drag strip competition! Drag Mode can be applied to any of the Stages stages, or even to your Stock stock file.

Info

The Activation Threshold, when Drag-Mode gets activated by the throttle pedal position, can be adjusted:

  • Lower Threshold: around 30% throttle pedal position

  • Standard Threshold: around 50% throttle pedal position

  • High Threshold: around 70% throttle pedal position

Note

Please note, that expected wear on clutch packs is around 4 times higher and transmissions in less than optimal working-state can develop mis-shifts!
This is especially true for highly tuned vehicles already experiencing issues with clutch-slip! Software can’t exceed the limits of your hardware!


Override Brake Boost Protection

The ZF6HP and ZF8HP use a torque converter, which amplifies torque coming from the engine, before it enters the rest of the drivetrain. This amplification needs to be considered during brake boosting, to protect the transmission and the rest of the drivetrain.

The typical magnitude is around 1.75 - 1.9 for ZF torque converters during brake boosting. (Engine speed > 800 RPM and Turbine speed: 0 RPM).

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Example:

A stock 335i F30 sends 400 Nm of torque from the engine. Those get amplified to around 750 Nm (400 * 1.9) before torque flows through the transmission.

Through the gearing of the transmission and the final drive this torque gets

The ZF6HP and ZF8HP use a torque converter to amplify the torque coming from the engine before it enters the rest of the driveline. This amplification must be taken into account while brake boosting, to protect the transmission and the rest of the driveline.

The typical torque multiplication factor for ZF torque converters during brake boosting is around 1.75 - 1.9. (Engine speed > 800 rpm and turbine speed: 0 rpm).

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Example:

A standard 335i F30 sends 400 Nm of torque from the engine. This is amplified to around 750 Nm (400 * 1.9) before the torque goes through the transmission.

Through the gear ratios of the transmission and final drive, this torque is further amplified and so you end up at with a whopping ~ 11.,300 Nm of Torque (~ 8330 ft-lb) that propel of torque driving your wheels. Here is the complete mathfull calculation:

Brake Boosting Gear 1:

400 Nm * 1.9 [Torque Converter] * 4.714 [Gear1] * 3.15 [Final Drive] = 11.285 Nm

Brake Boosting Gear 2:

400 Nm * 1.9 [Torque Converter] * 3.143 [Gear2] * 3.15 [Final Drive] = 7.524 Nm3.15 [Final Drive] = 7.524 Nm

This makes torque converters great for launching vehicles, but due to the amplification, the allowed torque from the engine has to be limited in this situation. This limit is independent from any other torque limits and only gets applied during the amplification phase of the converter.

It's hardcoded per transmission variant (6HP21, 6HP28, 8HP45, 8HP50, 8HP75 etc.) and normally can't be changed by the calibration engineer. There is good reason for it, as even small changes lead to very big torque jumps behind the converter.

The Override function in xHP has 5 settings from 5% to 15% to raise the allowed torque OR you can turn the protection completely off. When choosing OFF the engine torque will not be limited by this special function, but only by the respective Gear Limiter. (Gear 1 or Gear 2)

This makes torque converters great for launching vehicles, but due to the amplification, the allowed allowable torque from the engine has in this situation needs to be limited in this situation. This limit is independent from of any other torque limits and is only gets applied during the amplification boost phase of the converter.

It 's hardcoded is hard-coded per transmission variant (6HP21, 6HP28, 8HP45, 8HP50, 8HP75 etc.) and cannot normally can't be changed by the calibration engineer. There is a good reason for itthis, as even small changes lead to result in very big large torque jumps behind after the converter.

The Override override function in xHP has 5 settings from 5% to 15% to raise increase the allowed allowable torque OR you can turn the protection off completely off. When choosing If OFF is selected, the engine torque will is not be limited by this special function, but only by the respective Gear Limitercorresponding gear limiter. (Gear 1 or Gear 2)

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Example:

Here is the

math

calculation for a tuned 335i F30 with a maximum torque of 600 Nm

of max. torque. Through the stock

. The standard Brake Boost Limiter

,

limits the

max.

maximum torque during boosting

gets limited

to

roughly

about 400 Nm.

Gear 1, Stock Protection:

400 Nm * 1.9 [Torque Converter] * 4.714 [Gear1] * 3.15 [Final Drive] = 11.285 Nm

Gear 1, 5% Raise:

420 Nm * 1.9 [Torque Converter] * 4.714 [Gear1] * 3.15 [Final Drive] = 11.849 Nm (+ 564 Nm)

Gear 1, 15% Raise:

460 Nm * 1.9 [Torque Converter] * 4.714 [Gear1] * 3.15 [Final Drive] = 12.978 Nm (+ 1.693 Nm)

Gear 1, OFF:

600 Nm * 1.9 [Torque Converter] * 4.714 [Gear1] * 3.15 [Final Drive] = 16.927 Nm (+ 5.642 Nm)

Info

Please note the immense torque gains at the wheels.

Setting

If the limiter is set to OFF and

going

full boost is applied, this will easily

overcome

overwhelm the power of your brakes (the vehicle

drives forward, despite brakes being

will continue to move forward even though the brakes are fully applied) and

as well may lead to slipping clutches inside the transmission

may also cause the clutches in the gearbox to slip.

(Possible fault code: Gear Ratio Monitoring and limp mode triggered)

Depending on the traction available, it may also

snap

cause components

like

such as the rear differential or axles

,

to snap when launching.

Note

This function is a specific offer for Drag Racing purposes only and NOT intended to be used on standard road vehicles.

This feature is a special offer for drag racing purposes only and is NOT intended for use on standard road vehicles.


Max. RPM

Enables Allows users to setup set their own shift points for WOT . (= Wide Open/Full Throttle) . “Max. RPM” shift points. "Max RPM can be setup separately set separately for D-, S- and M mode. Please note, these -modes.

These values are only used when

not activating the

Kickdown

.

(

threshold

Threshold at

the

end of

the

throttle travel) is not activated.


Kickdown

Enables users Allows the user to enable/disable usage the use of the Kickdownkick-Switchdown switch, separately for D-, S- and M-modes.

There are 3 settings: Default, On ON, Offand OFF.

Defaultuses whatever is setup set in the flashed Mapmap. On and Off

“ON” and “OFFoverride the setting settings in the Map respectively. Please note, that “Kickdown Off” map.

Kickdown OFF does NOT mean

,

that the car

won’t downshift anymore. Just

won't downshift. It just reduces the maximum downshift speed

for downshift

in each gear

,

when full throttle is applied

, will be lowered

!

 

Info

Only available for 6-Speed cars


Gear Display

Enables users to customize Allows the user to customise the display of the current gear in on the dashinstrument panel.
Four settings are available: Default, Gear Display Off, Display Actual Gear, Display Target Gear. Default

  • “Default” uses whatever is

setup
  • set in the flashed

Map. Off, turns the Display
  • map.

  • “OFF” switches the display off. The

Dash
  • dash will only show

just
  • the current mode,

but
  • not the current gear (except in

manual
  • M-mode).

  • Display Actual Gear and Display Target Gear

will
  • show the current gear in all modes (D, S and M), but differ in

terms of
  • when the display

switches
  • changes to the next gear.

 “Display Actual Gear” will let the display switch,
    • "Display Actual Gear" causes the display to change when the shift

is
    • has been fully processed

,
    • and the next gear has already been engaged by the

trans
    • transmission.

“Display Target Gear” will switch
    • "Display Target Gear" switches the display

right
    • at the beginning

of the
    • of the shift.

Perception of drivers is different, in terms of what is the correct time for changing the gear- display in the dash.Should there be an error with
    • Drivers have different perceptions of when it is correct for the gear display in the instrument panel to change.

This gives the user the opportunity to choose their preferred option.

If there is an error displaying the current gear, please take a look at refer to our FAQ.


Stay in 2nd Gear in M-Mode

Let’s you chose Let's choose whether the transmission shifts does shift down to 1st or 2nd gear at standstill. (in M-Mode) 1st or 2nd gear when stopped in M mode.

Info

Only available for 6-Speed, only applies to M-mode.

⚙️


Take-Off in 2nd Gear

Especially on higher powered cars staying in 2nd Gear at standstill adds to a comfy ride during daily driving (you save 1 shift on each junction) and can even help to optimize 0-60 time on high power RWD cars with limited traction. xHP lets you choose whether to activate this function for D, for S or for both modes. This comes with no downsides in terms of wear as torque converters transmit torque through fluid, rather than friction plates (like in a manual transmission or Double-Clutch-Transmission) The slightly higher slip when taking off therefore has no effect on wear.

The transmission will revert to standard behavior when necessary, for instance in the following situations:

  • When activated for D-Mode only, the trans will revert to 1st Gear when switching to S and/or when setting Sport or Sport+ with the DEC Switch

  • In D/Comfort mode the transmission will revert immediately to 1st Gear when activating Kickdown. (Emergency Function)

  • On cold start (some vehicles)

  • On inclines or with a trailer attached

  • When transmission is overheated


Throttle Blips in M-Mode

Throttle Blips are used to rev-match the engine on downshifts. This function lets you setup the aggressiveness of downshift blips in manual mode. The main goal of rev-matching is to speed up downshifts by actively matching the Engine-RPM to the Target-RPM in the Target-Gear. This is done, by applying a short blip to the throttle during the transition phase between 2 gears. Users can alter the intensity of this blip, by +-50%, compared to the setting in any of the OTS Maps or Custom Map used. Higher values will lead to more audible and faster blips but can get uncomfortable. Lower values will lead to a slower but smoother rev-match. Please note, that this function does not support all vehicles/maps. Generally supported are Stage 3 Maps and N54/N55 vehicles, as well as all cars with 8- Speed Transmission.


Shiftmap Editor with Presets

The shift map editor enables you to change all shift points in D and S mode to your personal liking. For instance you can make your car shift later from 1st to 2nd Gear when accelerating, or vice versa. Or make it hold 8th Gear for longer on the Highway when accelerating. For an easy start, xHP offers 4 presets: Relaxed, Relaxed+, Sportive and Sportive+.

Those presets make it easy to do a quick test on your car and experience the changes. Just select a preset and flash any map again. xHP will automatically apply the Presets to your Shiftmap during the Flash. Presets work with your Stock Calibration, with all OTS Maps and with Custom Files flashed.

Relaxed and Relaxed+: Your car will shift earlier up and will be less eager to downshift when pressing the throttle.

Sportive and Sportive+: Your car will shift up later and will stay for longer in lower gears. It will also react more quickly to throttle inputs and will be more happy to shift down.

Main Page

Select Preset

Shiftmap Editor: Editing Presets

For further tailoring, you can also edit any of the Presets, and save your changes in up to three custom slots. Just select a Preset from the Dropdown and click the Toolbox Icon next to it. This will load the Preset into the Editor and expose the stored settings. You can now edit each individual up and downshift and afterwards store your Changes to 1 of 3 custom slots. The Presets itself will stay untouched, so you can always revert to them. Your personal slots also get exported when using the Import/Export feature, so you can easily share them with other users!

Example of relaxed Setting

Editing of Preset “Sportive”

Shiftmap Editor: Setup hints

A “shift map” consists of 10 lines, which are spread over throttle input. Five for upshifting (1-2-3-4-5-6) and five for downshifting. (6-5-4-3-2-1) Up- and downshifts can be independently configured. The setting made in the editor are always relative to the flashed map. You do not set exact shift points, but rather are able to change the shifting of a given OTS or custom map! The spread is from +50% to - 50% for each shift. For example, if your 5-6 shift on low loads normally occurs at 50 mph, but you want it not to happen before 55 mph, pull the 5->6 slider to + 10%. Same goes for the downshifts. If your trans normally downshifts on 40 mph from 6->5 during coasting, but you want that to happen at 50 mph, pull the slider for 6->5 up to +25%.

Be sure to make sensible changes. If you alter the 1-2 shift upwards, you should do the same gradually to the subsequent shifts, to get a “natural” shift-feel during driving. Rule of thumb is to make bigger changes on the lower gears, and smaller changes on the upper gears. However, you are free to experiment with these settings. xHP pre-calculates and validates all changes against every OTS Map stored on the device. A fixed ruleset gets applied to auto-correct "wrong" settings and prevent dead-locks. Such a dead-lock could happen if your 2-3 upshift-point would be set below the 3-2 downshift-point, or if an upshift would lead to a target RPM below idle- speed of the engine.

Below is an example how to turn the standard Stage-3 Map of a 335i in D-Mode into a very comfortably and low shifting Map:

UPSHIFTS

  • 1->2: - 20%

  • 2->3: - 16%

  • 3->4: - 12%

  • 4->5: - 8%

  • 5->6: - 4%

DOWNSHIFTS

  • 2->1: 0% 

  •  3->2: 0% 

  •  4->3: - 2% 

  •  5->4: - 2% 

  •  6->5: - 2%

This setting will let the trans shift instant to 2nd gear after take-off in D-Mode and keeps revs steady below 2000 RPM on a 335i E90, during normal driving in traffic. This is just an example, but users are encouraged to experiment and find their own personal best shift map. The Shift point Editor lets you change the character of a given map very much, by just pulling a few sliders.


Use Stock Shiftmaps

This option will always keep the stock shift points, no matter what map you flash. Changes in the Shift point – Editor will be done relative to the Stock-Shift maps!


Shift Speed in M-Mode

This panel lets you fine-tune the Speed of each upshift in M-Mode! Positive values (slider to the right) mean FASTER but harder and therefore less comfortable shifts. Negative values (slider to the left) mean SLOWER but smoother and therefore more comfortable shifts. For example, if you have the feeling that the 1-2 shift in M is too hard, pull the slider to the left, to make it smoother. You can experiment to find your optimal setting. There are no "dangerous" settings possible.


Lockout 6th Gear in S-Mode

Since launch of xHP this is an endless debate. Some users want the trans to engage 6th Gear on Highway Speeds when using S-Mode, others don't and complain about the exact same thing. Most BMW do not use 6th Gear in S-Mode. That’s factory setup and is due to German Autobahn. Nothing more annoying than a transmission shifting back and forth between 5th and 6th Gear on steady 200km/h+ drives. On the other side, customers in other countries use S-Mode as Standard mode and complain about bad mileage on the highway. Our OTS Maps mostly use 6th Gear in S-Mode, as most of our customer base does not have the pleasure of unlimited motorways. To end this struggle, users can use this switch to lockout 6th Gear in S, despite most of our OTS Maps are configured different.


Torque Limit per Gear

Especially on high power RWD cars limiting torque in the lower gears can improve traction and make them easier to handle. xHP offers a range from 300 Nm (221 ft lbs.) to the possible maximum of 1000 Nm (737 ft lbs.) for each gear. It can be used either to limit boost in the lower gears, or to limit the engine power overall in all gears to protect the drive-train components. The electronic limiter works by sending a request to the ECU (Engine Control Unit) to lower torque once the limit is reached. The ECU then takes the necessary measures (close the throttle/lower boost/lower timing) to stay steady on this limit. It's the same method applied during shifts, when the TCU (Transmission Control Unit) also takes over the torque control from the engine to enhance the shifting. This method of control works steady and within split seconds. We also included presets for RWD, RWD with Sticky Tires and AWD cars, to get you a baseline. Start with this settings and test how your car behaves in your environment. Based on the properties of your car (weight, tires, suspension, differential etc.) and the roads you travel on usually, you can then adjust the limits up/down until it matches perfect.


Torque Reduction during upshifts

This function lets you setup how much torque reduction the gearbox is requesting from the engine during upshifts. Just like with a manual, where the driver presses the clutch while releasing the throttle, the automatic transmission sends a request to your vehicles engine to lower torque while it's shifting from one gear to another.

Lowering the amount of torque reduction (Slider to -) can reduce turbo lag after shifts, especially in the lower gears. The opposite, raising the torque reduction (Slider to +), can produce faster/crisper shifts. The main purpose of this function is to fine tune your shifts to your current engine setup, as every aftermarket component or tune slightly alters the behavior of the engine during shifts. Tuned cars with big turbos may need general less reduction, than ones with stock turbos. If you experience a bit of "lag" on a certain shift, you can also try to lower the torque intervention by a few % until it starts to smooth out. Reducing the amount of torque pulled during a shift puts more load on your clutches and stretches the shift-time a bit, so just minimising all values won't do the trick.

Info

Setup Info
Users are advised to use this function with care. It's not dangerous to play around with it, just to feel the effects, but you have to be aware that lowering torque reduction substantially (e.g. -25%) over extended periods will increase the load and thereby reduce the clutches lifetime.


Line Pressure Bump

The “Line Pressure” is the main pressure the transmission operates with, outside of shifts. Main input for the calculation of the Line Pressure is the torque actual value sent by the cars Engine Computer (ECU, DME) The pressure gets regulated by an electronic valve, controlled by the TCU (Transmission Computer). Depending on transmission type, the ZF units typically operate with a maximum of 16 – 20 Bar oil pressure. The higher the pressure, the higher the clamping force of the clutches and the higher the maximum amount of torque, that can be transmitted through the clutch pack, before it starts to slip and quickly burn. This custom option tweaks the transmissions mapping to allow for around 5 to 15% more peak pressure. Usually the ZF transmissions can easily cope with the typical torque increase of a Stage 1 or 2 Engine Tune, when equipped with an xHP OTS Map. However, for very high power increase, this option can make the difference, whether your clutch pack is able to withstand or not.

Setup hint
We suggest applying this option only, if you are already running into clutch slip issues, or if your engine tune creates more than approx. +40% - 60% over stock torque.

It is usually not needed for Standard Tunes.


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.


Back to the Overview Page.