RaceCapture-Track MK2

RaceCapture external antenna 3quarter.jpg

Start it up

Plug it in

Unpackage the RaceCapture system and included OBDII cable and GPS antenna.

  • Plug one end of the OBDII cable into the RaceCapture RJ45 port.
  • Plug the other end of the cable into your car's OBDII port.

LED status

Your RaceCapture system has a status LED that will indicate the current status of the system:

  • Green - GPS Status (or firmware update status)
    • Slow green flash : GPS searching for lock
    • Fast green flash : GPS locked (2Hz)
  • * Very fast green flash: Very rapid green flash indicates the unit is in bootloader mode, during firmware updates. If you see this when the the unit powers up and you cannot connect with the RaceCapture app, it usually means a failed firmware upgrade. You can resolve the issue by going through the firmware update process again.
  • Blue : WiFi activity
  • Red: Firmware error


Place the RaceCapture system on a level surface in your car, with the RJ45 and USB connectors facing forward and logo up. This is the factory orientation for the accelerometers and gyro.

Note If you must install the unit in a different orientation, install with 90 degree orientation to the plane of the vehicle; e.g. flat/upright, on-edge, upside down - etc. Avoid installing at an angle. If installed in a non-standard orientation, you can go into Setup and re-map the accelerometer and gyro channels to match your changes.

Ideally, install the unit in a hidden location, shielded from heat and moisture. You can attach the unit with hook and loop fastener, if that is convenient.

Attach GPS

Attach the GPS antenna connector to RaceCapture and screw to 5-6 inch lbs - just beyond finger tight to prevent the connector from vibrating loose. Do not overtighten.

Locating Antenna

  • Ideal: Mount the antenna on the roof of the vehicle, using the magnetic mount. Place the antenna with minimum 3 feet spacing from other transmitting antennas (car radios, cellular antennas, etc).
  • Alternate Mounting: You can mount it on the dashboard in clear view of the sky, or on the rear parcel tray under the back window. Note, this may degrade your GPS performance vs. roof mounting.

RaceCapture Pro MK3 antenna install.png

Download the app

On Mobile

Windows / OSX

Download the Windows or OSX app from the downloads site

  • Windows 10 and OSX: No USB drivers are needed for OSX or Windows 10.
  • Windows XP, 7, 8: Not supported due to outdated video drivers, but may work depending on the video hardware used. USB drivers will require installation instructions below.

First Time Setup

Windows / OSX

Only USB connection is supported. Connect the RaceCapture device to your computer via the supplied USB cable; this will also provide power to the unit. This is a good way to set up and test your RaceCapture system on the bench.


We recommend connecting with Bluetooth when using Android devices.

Connecting with Bluetooth

  • Ensure RaceCapture is powered.
  • Under your phone/tablet's Android Settings, navigate to the Bluetooth section.
  • Select the option to pair a device. Your phone/tablet will search for available devices.
  • Once the RaceCapture device is found, select it to pair.
    • Note: The default password is 1234 - you can change this later under Setup.

Connecting with WiFi

  • Ensure RaceCapture is powered.
  • Under Android settings, navigate to the WiFi section.
  • Wait until you see the RaceCapture WiFi network.
  • Select this network to connect.
    • Note: No password is required for the initial connection - you can set a password for your WiFi network later under Setup.


Due to iOS's limitation for Bluetooth connectivity, only WiFi connection is supported for RaceCapture.

Connecting with WiFi

  • Ensure RaceCapture is powered.
  • Under your iOS settings, navigate to the WiFi section.
  • Wait until you see the RaceCapture WiFi network.
  • Select this network to connect.
    • Note: No password is required for the initial connection - you can set a password for your WiFi network later under Setup.

Launching the first time Setup


Launch the App and follow the automatic installation guide.

System Status

Access the system status pages through the top left menu. The system status offers information on GPS status, current WiFi state and more. You can also get a copy of the RaceCapture application log for diagnostics.

RaceCapture status page.png

Dashboard Mode

To view your dashboard, touch the dashboard option on the main screen.

RC app dash screenshot.png

Customizing a gauge

Most gauges can be customized for the channel and setting visual alerts. Touch the gauge you wish to customize, select the channel you wish to monitor and optionally configure alerts and warnings.


Navigating dashboard screens

You can navigate between dashboard screens by swiping left or right, or press the arrow buttons in the lower corners of the screen.

Track mapping and predictive lap timing

RaceCapture offers predictive lap timing, which relies on a robust track detection system using hundreds of track maps worldwide.

RaceCapture trackmap browser.png

How it works

  • When GPS receives a lock, RaceCapture will search for a nearby track.
  • If a track is detected with one configuration, it is automatically selected.
  • If a track is detected with multiple configurations, the RaceCapture app will prompt you for which configuration you're using.
  • If no tracks are detected nearby, the RaceCapture app will offer the ability to create a track on the spot.
    • If you're not able to immediately create the track, you can do so later under Setup.
  • Track not found? Submit the track to us and we'll get it into our online database.

RaceCapture create custom track.png

Setup Mode

You can configure all of RaceCapture's options under the setup page.

When the RaceCapture app first connects to your RaceCapture/Track system, it will read the current settings.

  • The setup information is presented as a series of pages, by topic.
  • When you change something on a setup page, you'll need to Write the changes back to the unit - they do not take effect immediately.

Racecapture setup buttons.png

Explanation of buttons

  • Save: Save the current RaceCapture setup to a file, for backup.
  • Open: Load a previously saved setup file.
  • Read: Read the current setup from the RaceCapture device.
  • Write: Writes any updated changes back to the RaceCapture device. Note: when you see the write button glowing / pulsing, it means there are pending changes to write back to the RaceCapture device

Race Tracks

On the RaceTracks page you can create a custom track, which will be included in the library of track maps for automatic detection. To create a custom track, turn off 'Automatic race track detection' and then press the add (+) button. You will be presented with an option to create a circuit or Autocross (point-point) style course. Follow the on-screen instructions to create your track.

RaceCapture select track type.png


The GPS page allows you to adjust the GPS sample rate and enable/disable various channels.

  • Note: We highly recommend you keep the default channels enabled for proper operation of analysis and lap timing.
  • 10Hz is the recommended sample rate for the best balance of performance / accuracy. Getting the best GPS performance

Race Timing

These enable the lap timer and predictive lap timer. Leave these 'on' to enable these features.

Analog Sensors

RaceCapture has one analog sensor that measures current battery voltage. The default 1Hz is the recommended sample rate. To disable, set the sample rate to 'Disabled'.

  • Note: Normally you would not need to adjust these settings.

Accel / Gyro

The recommended mounting orientation for RaceCapture is square with the chassis.

  • You can re-map channels by re-assigning the physical axis to the mapped channel.
  • Once defined, you can calibrate the accelerometer + gyro by pressing the calibrate button, and then pressing the write button to write the calibration back to RaceCapture.

RaceCapture imu config.png

CAN bus

For OBDII operation, ensure the CAN bus is set to On.

  • Common baud rates for OBDII are 500K and 250K. The default is 500K, which applies to nearly every CAN OBDII vehicle.

RaceCapture CAN config.png


You can select from a standard list of OBDII channels on the OBDII configuration screen.

RaceCapture OBDII config.png

Selecting sample rates

For channels that require a faster response rate, like RPM and TPS, we recommend 10, 25 or 50Hz. More slowly changing channels like EngineTemperature should be set to 1 or 5Hz.

  • Note about unsupported channels: If your ECU does not support a channel, the value will remain at 0. RaceCapture will time-out waiting for a response from the ECU, which will affect the performance of other channels. We recommend removing all unsupported channels to ensure optimal OBDII performance.


You can configure RaceCapture's WiFi for both Access Point and Client mode.

RaceCapture WiFi config.png

Client Mode

To enable client mode, specify the SSID and password for the network you wish to connect to and turn the client mode switch to on

Access Point Mode

To enable the RaceCapture access point, specify the SSID and a password.

  • Note: If specified, passwords must be minimum of 8 characters. Leave the field blank to create an open network.

Real-time Telemetry


You can live-stream your data to Podium so you can compare and share laps and runs with your friends as well as analyze your data in Podium to become a faster driver

<img src="WzHsdU1.gif" width="640"/>

Enabling Telemetry

  • Create an account on Podium and create a device ID.
  • Enter the provided device ID into the telemetry configuration page of your RaceCapture app
  • Enable the telemetry option in the top level application preferences.

RaceCapture telemetry config.png

When telemetry is broadcasting, you will see a green cloud icon in the application toolbar. Navigate to your Podium home page to see a list of your events - select the newest event to see your live data.

Notes about Android devices
  • Hotspot mode: Older versions of Android will lose their internet connection when connected to a WiFi network that doesn't provide an internet connection. This is a common issue when connecting to WiFi enabled cameras such as GoPros and other WiFi enabled devices. Fortunately, iOS and newer versions of Android have the smarts to detect this condition and keep the cellular connection active, but older versions of Android will require an different approach.

If you have a device that loses it's internet connection when connected to RaceCapture's WiFi network, you can solve this by enabling a hot spot on your device, and then configuring RaceCapture's WiFi interface by enabling the client configuration to connect to your hotspot, effectively reversing the connection. Once RaceCapture is configured to connect to your hotspot, it will automatically connect whenever your hotspot is turned on, and then you'll be able to broadcast telemetry to Podium.


RaceCapture will automatically record your session in the background while in dashboard mode. To view the data, enter the Analysis mode and load an existing session. The session will be automatically named with the local track or with a timestamp.


Reviewing Laps

If the data contains lap times, the laps will be shown in the dropdown list on the right. Select the laps you wish to compare; the Speed channel is selected by default.

  • Comparing additional channels: You can review additional channels by pressing the gear icon on the line chart.

Navigating data

Swipe across the data to compare various points correlated with the position on the track map.

  • Zooming you can zoom the chart using a two-finger pinch gesture, or using the mouse scroll wheel or your laptop's trackpad scroll feature.

Selecting time vs distance

You can switch between time and distance data comparison by accessing the chart options, or pressing the -> or clock icon in the line chart.

Reviewing raw data

If your data contains no laps, such as data from a static test or dyno pull, the data will be present in one entry under the loaded session. Select this entry to view the data. The RaceCapture app will auto-select the Time dimension if it detects no significant distance traveled within the data.

Comparing laps / runs between sessions

You can compare data between sessions if they are in a coinciding location - just load multiple sessions and select laps between those sessions.

Exporting Data

You can export your sessions from your list of saved sessions.

  • Under your Analysis session list, export your session by pressing the export button, to the right of the name of the session.
  • Export this to your local Android device storage.
  • Connect your Android device to your computer using a USB cable. The Android device will appear as a removable storage device.
  • Copy the exported log file from your Android device to your computer.
  • Under your Analysis session list, export your session by pressing the export button, to the right of the name of the session.
  • Export this to your local iOS device storage.
  • Connect your iOS device to your computer using a USB cable.
  • Access the iOS device using the iTunes file sharing capability. We recommend iFunBox as an easy to use tool.
  • Copy the exported log file from your iOS device to your computer.


See the RaceRender guide on how to create videos using RaceCapture data

Importing to 3rd party software

The RaceCapture log file format is plain CSV, which can be imported into 3rd party software.

  • RaceRender provides native support for the RaceCapture log file format.
  • DashWare has been used by RaceCapture customers - Rowan Hick has a write-up on Dashware integration.

Applying Decals

Install the included decals on your car in prominent locations - for a guaranteed +5 HP!

Chris wynne asl.jpg

Extended Setup Guide

Automating use of Tablets/Phones for a Dashboard display=== See this guide here: Automating Tablets/Phones for use as Dashboards Guide

Alternative ways to power


You can power RaceCapture using the included USB cable, plugged into your car's USB charger.

  • You can optionally power RaceCapture from a battery like the kind you would use to recharge a phone (1000 mAh or higher recommended)

Custom Cable

RaceCapturePro MK3 RJ45 pinout.png

You can build a custom cable for power and CAN bus using a standard CAT-5 ethernet cable with an RJ45 connector. Wire up using the following diagram.

  • Note: OBDII is enabled by default on CAN1; CAN2 is recommended for secondary sensor networks.
RJ45 Power, ground and CAN bus connections to RaceCapture/Pro EIA-T568B RJ45 cable color codes (check printing on the cable to confirm)
Connection RaceCapture/Track MK2 (RJ45 cable)
+12v Brown
Ground Orange/White
CAN 1 High Orange
CAN 1 Low Green/White
CAN 2 High Blue
CAN 2 Low Blue/White

Note: These color codes assume EIA-T568B RJ45 cable (check printing on the cable to confirm)


Integrating AnalogX

You can use AnalogX to add 4 additional sensor channels, connected to to the secondary CAN bus of your RaceCapture system.

RCTrack MK2 AnalogX.jpg

Integrating AnalogX requires splicing 4 wires and using a commonly available straight-through RJ45 splitter.

Suggested parts

  • RJ45 Splitter "Hub" shaped
  • RJ45 network cable Flat style round style
    • Note Any standard CAT5 or CAT6 patch cable should work, so long as it is not a cross-over cable.


Splice the following connections between AnalogX and an RJ45 cable with one end cut, forming a pigtail.

AnalogX will receive power from the OBDII cable, and provide data to RaceCapture via CAN2.

Wiring AnalogX to RaceCapture/Track MK2 CAN2 EIA-T568B RJ45 cable color codes (check printing on the cable to confirm)
Connection AnalogX connection RaceCapture/Pro or RaceCapture/Track MK2 (RJ45 cable)
+12v Red Brown
Ground Blue Orange/White
CAN 2 High Black Blue
CAN 2 Low Orange Blue/White

Enabling the CAN preset and calibrating sensors

Setting CAN baud rate

The default baud rate for AnalogX is 500K. If you still have it set to the default, ensure this is set under the CAN bus settings.

CAN2 500K baud.jpg

Selecting the AnalogX preset

Select the starter CAN preset for AnalogX. This will bring in the basic 0-5v mapping, which you can then calibrate further using the CAN mapping conversion formula.

AnalogX CAN preset.jpg

Calibrating Sensors attached to AnalogX

See the AnalogX setup and calibration guide to calibrate your sensors.

Recovering from mis-configured WiFi or Bluetooth

If you're unable to connect via mobile due to a Wireless configuration issue - for example:

  • You forgot the password you set for RaceCapture's Access Point or Bluetooth link
  • If RaceCapture's WiFi client needs to be re-configured for a new WiFi network

You can recover by re-configuring RaceCatpure's WiFi settings via the USB connection and the Windows or OSX app.

Steps to recover:

  • Launch the RaceCapture app on Windows or OSX
  • Connect RaceCapture via USB
  • Allow the software to connect and read the configuration
  • Under Setup, adjust the WiFi or Bluetooth settings as needed
  • Write the configuration back to RaceCapture

Once you update the settings, it's recommended you test the WiFi connection using your mobile device while still connected over USB so you can further adjust settings as needed.

How To


Analog Inputs
Channels Battery Voltage (Internally connected) (0-20v)
CAN Channels 2
CAN baud rate 125K, 250K, 500K, 1M Baud
CAN filters 14 per channel
Protocol Support OBDII PID, custom CAN mapping
CAN Bus CAN 2.0 compatible, 1M baud
CAN termination Internal jumper controlled; termination disabled by default
CAN channels supported 100
Cellular Telemetry
Via RaceCapture App 3G/4G depending on mobile device's capability (phone) or connected tablet + hotspot
Maximum Sample Rate 10Hz (1/5/10Hz supported)
GPS Engine 1/5/10/25/50Hz native
GPS Antenna External / Magnetic roof mount
Wireless (WiFI)
WiFi 802.11bgn
WiFi Modes Access Point, Infrastructure
Maximum Sample Rate (dashboard link) 50Hz
Wireless (Bluetooth)
Bluetooth (high speed) 2.0/2.1 EDR
Maximum Sample Rate (dashboard link) 50Hz
General Features
Maximum Sample Rate 50Hz
Predictive Lap Timing Built-in
Track Mapping Circuit and point-point
Track maps Unlimited - update from cloud
Sectors per track 20

Included in the RaceCapture App + podium.live

Export data format Plain CSV (RaceRender and Dashware compatible)
Scripting / Customization
Real-time virtual (math) channels / custom channel mapping Via on-board Lua scripting
Virtual Channels 100
Dimensions 76.2 x 50 x 22mm (3 x 2 x 0.85in)
Temperature range -40 to 85c
Environmental IP50 rated
Weight 170g (6 oz)
Physical RJ45 Connector, 8 pins provides power + OBDII / CAN connectivity SMA for external GPS antenna
Power Consumption (max) 1.6W