The 8HP drive
With BiMatrix Mini

Your favourite car. New character with a great automatic gearbox.
BiMatrix Mini connects the gearbox, engine and controls into one system.

A familiar car. A whole new feeling.
BiMatrix Mini: black enclosure and connector, with a green triangular indicator
BIMATRIX MINI 8HP GEARBOX CONTROLLER
Compatibility

Gearboxes and
Transfer cases

BMW gearboxesTransfer cases
8HP45/70ATC300
8HP50/75ATC700
8HP51/76ATC450/45L*

* ATC35L and ATC45L — when used with the ECU from an ATC450 E70 LCI.

8HP Tuner

Gearbox
firmware

  • Preparation for installation
  • Shift point adjustment
  • Coding
  • Launch in 2nd gear

Firmware profiles

  • OEM+
  • Stage2
  • Stage3

Gearbox firmware files are not part of the BiMatrix Mini product.

HOW IT CONNECTS

Your car. BiMatrix.
A new character with 8HP.

The car supplies the signals.
BiMatrix translates them into the gearbox's language.

All essential signals arrive over CAN.

Signal demonstration

BMW E92 Shadow Line facing right — the signal source for BiMatrix
Engine speedRPM
1000rpm
AcceleratorTPS
0%
BrakeBRAKE
Released
TorqueTORQUE
40N·m
01 · SIGNAL SOURCE

Your car

Engine and control signals — over CAN.

CANBiMatrix Mini — black controller with a green indicator, rendered without a background
02 · RECEIVES AND PROCESSES

BiMatrix Mini

Collects signals and creates data the gearbox understands.

CAN FOR 8HP
BMW ZF 8HP70 automatic gearbox
03 · RECEIVES THE DATA IT NEEDS

ZF 8HP45/70/75/*

Engine speed, accelerator, brake and torque — in messages that control the gearbox.

Data for the gearbox

Even if the ECU does not transmit all torque data.

Maps X/Y can estimate target and actual torque from engine speed and load. This calculated estimate must be tuned to the engine.

More about wiring
BIMATRIX APP

Everything under control.
Always at hand

View data, adjust settings.
On a large screen or right in your car.

A laptop and a phone in landscape orientation running the BiMatrix app.

BiMatrix interface · Wi-Fi / BLE

BIMATRIX MINI FEATURES

Your setup. Your rules.

Connection
and control

  • 2 × CAN 2.0B

    Two CAN interfaces for communicating with the car and gearbox.

  • 4 analogue inputs · 0–5 V

    For pressure and temperature sensors, potentiometers and other signal sources.

  • 4 AUX / PWM outputs

    Control relays, fans and solenoids by switching to ground — using configurable X/Y maps.

  • 1 DIG digital input

    Read PWM, frequency and logical state 0/1.

Preparing the
gearbox

  • Gearbox reflashing

    Change the gearbox software: Diesel ↔ Gas.

  • Gearbox reset

    Prepare a used gearbox for installation in your car.

  • Coding

    Configure NIC, Launch and other gearbox functions.

Gearbox firmware files are not part of the BiMatrix Mini product.

Shift
character

  • Calibration changes

    OEM+ / STAGE 2 / STAGE 3 / CUSTOM.

  • Shift points

    Tune gear changes to your engine and driving style.

  • Second-gear start

    Start in 2nd gear in D and S modes.

Gearbox firmware files are not part of the BiMatrix Mini product.

BMW M5 E60 Titan Silver on a closed track in tyre smoke — visual concept

BUILT IN THE GARAGE. FELT ON THE TRACK.

For that very
first launch.

Some cars are too special to let go.
You just want to make them even more exciting.

Successful projects
Visual concept
SWITCHING TO 8HP

A solid
plan.

From choosing the parts to discovering your car's new character.

0 / 7steps completed

  1. Manual

FREE 3D MODEL

Selector and BiMatrix.One mount.

A BMW F10 Sport selector holder with a BiMatrix Mini mount. Download the model and print the part for your project.

SELECTOR
BMW F10 Sport
BIMATRIX MOUNT
4 positions
Model on Thingiverse

Free access to 3D printing files

THE NEXT STEP IS YOURS

I'm ready!

Place an order

BiMatrix Mini for your next 8HP project.

USER MANUAL

BiMatrix Mini manual

Wiring, setup and first start.

Open the manual